4,5mmx3,5mm
ActualSize
STAT1
IN
IN
PG
VCC
TTCorCMODE
ISET1
ISET2
STAT2orNC
PGND
PGND
CE
SNS
BAT
CELLSorFBorNC
TS
OUT
OUT
VTSB
VSS
20
1
11
10
2
3
4
5
6
7
8
9
19
18
17
16
15
14
13
12
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
www.ti.com
SLUS606O –JUNE 2004–REVISED MARCH 2010
SYNCHRONOUS SWITCHMODE, LI-ION AND LI-POLYMER CHARGE-MANAGEMENT
IC WITH INTEGRATED POWER FETs ( bqSWITCHER™)
Check for Samples: bq24100,bq24103,bq24103A,bq24104,bq24105,bq24108,bq24109,bq24113,bq24113A,bq24115
1FEATURES DESCRIPTION
23• Ideal For Highly Efficient Charger Designs For The bqSWITCHER™ series are highly integrated
Single-, Two- or Three-Cell Li-Ion and Li-ion and Li-polymer switch-mode charge
Li-Polymer Battery Packs management devices targeted at a wide range of
portable applications. The bqSWITCHER™ series
• bq24105 Also for LiFePO4Battery (see Using offers integrated synchronous PWM controller and
bq24105 to Charge the LiFePO4Battery)power FETs, high-accuracy current and voltage
• Integrated Synchronous Fixed-Frequency regulation, charge preconditioning, charge status, and
PWM Controller Operating at 1.1 MHz With 0% charge termination, in a small, thermally enhanced
to 100% Duty Cycle QFN package. The system-controlled version
provides additional inputs for full charge management
• Integrated Power FETs For Up To 2-A Charge under system control.
Rate
• High-Accuracy Voltage and Current Regulation The bqSWITCHER charges the battery in three
phases: conditioning, constant current, and constant
• Available In Both Stand-Alone (Built-In Charge voltage. Charge is terminated based on user-
Management and Control) and selectable minimum current level. A programmable
System-Controlled (Under System Command) charge timer provides a safety backup for charge
Versions termination. The bqSWITCHER automatically restarts
• Status Outputs For LED or Host Processor the charge cycle if the battery voltage falls below an
Interface Indicates Charge-In-Progress, Charge internal threshold. The bqSWITCHER automatically
enters sleep mode when VCC supply is removed.
Completion, Fault, and AC-Adapter Present
Conditions RHL PACKAGE
• 20-V Maximum Voltage Rating on IN and OUT (TOP VIEW)
(bq24100, 03, 03A, 04, 05, 08, 09, 13, 13A, 15)
Pins
• High-Side Battery Current Sensing
• Battery Temperature Monitoring
• Automatic Sleep Mode for Low Power
Consumption
• System-Controlled Version Can Be Used In
NiMH and NiCd Applications
• Reverse Leakage Protection Prevents Battery
Drainage
• Thermal Shutdown and Protection
• Built-In Battery Detection
• Available in 20-Pin, 3,5 mm × 4,5 mm QFN
Package
APPLICATIONS
• Handheld Products
• Portable Media Players
• Industrial and Medical Equipment
• Portable Equipment
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2bqSWITCHER, PowerPAD are trademarks of Texas Instruments.
3All other trademarks are the property of their respective owners.
UNLESS OTHERWISE NOTED this document contains Copyright © 2004–2010, Texas Instruments Incorporated
PRODUCTION DATA information current as of publication date.
Products conform to specifications per the terms of Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
SLUS606O –JUNE 2004–REVISED MARCH 2010
www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
ORDERING INFORMATION(1)
TJCHARGE REGULATION VOLTAGE (V) INTENDED APPLICATION PART NUMBER(2) (3) MARKINGS
bq24100RHLR CIA
4.2 V Stand-alone bq24100RHLT CIA
bq24103RHLR CID
1 or 2 cells selectable (CELLS pin, 4.2 V or 8.4 V) Stand-alone bq24103RHLT CID
bq24103ARHLR CKO
1 or 2 cells selectable (CELLS pin, 4.2 V or 8.4 V) Stand-alone bq24103ARHLT CKO
bq24104RHLR NXW
1 or 2 cells selectable (CELLS pin, 4.2 V or 8.4 V) Stand-alone
(Blinking status pins) bq24104RHLT NXW
bq24105RHLR CIF
–40°C to 125°C Externally programmable (2.1 V to 15.5 V) Stand-alone bq24105RHLT CIF
bq24108RHLR CIU
4.2 V (Blinking status pins) Stand-alone bq24109RHLR CDY
bq24113RHLR CIJ
1 or 2 cells selectable (CELLS pin, 4.2 V or 8.4 V) System-controlled bq24113RHLT CIJ
bq24113ARHLR CKF
1 or 2 cells selectable (CELLS pin, 4.2 V or 8.4 V) System-controlled bq24113ARHLT CKF
bq24115RHLR CIL
Externally programmable (2.1 V to 15.5 V) System-controlled bq24115RHLT CIL
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
Web site at www.ti.com.
(2) The RHL package is available in the following options:
T– taped and reeled in quantities of 250 devices per reel
R– taped and reeled in quantities of 3000 devices per reel
(3) This product is RoHS-compatible, including a lead concentration that does not exceed 0.1% of total product weight, and is suitable for
use in specified lead-free soldering processes.
ABSOLUTE MAXIMUM RATINGS(1)
over operating free-air temperature range (unless otherwise noted) UNIT
Supply voltage range (with respect to VSS) IN, VCC 20 V
STAT1, STAT2, PG, CE, CELLS, SNS, BAT –0.3 V to 20 V
OUT –0.7 V to 20 V
Input voltage range (with respect to VSS and PGND) CMODE, TS, TTC 7 V
VTSB 3.6 V
ISET1, ISET2 3.3 V
Voltage difference between SNS and BAT inputs (VSNS – VBAT) ±1 V
Output sink STAT1, STAT2, PG 10 mA
Output current (average) OUT 2.2 A
TAOperating free-air temperature range –40°C to 85°C
TJJunction temperature range –40°C to 125°C
Tstg Storage temperature –65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 300°C
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
2Submit Documentation Feedback Copyright © 2004–2010, Texas Instruments Incorporated
Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
VIREG +1V
RSET1 1000,
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
www.ti.com
SLUS606O –JUNE 2004–REVISED MARCH 2010
PACKAGE DISSIPATION RATINGS TA< 40°C DERATING FACTOR
PACKAGE qJA qJC POWER RATING ABOVE TA= 40°C
RHL(1) 46.87°C/W 2.5°C/W 1.81 W 0.021 W/°C
(1) This data is based on using the JEDEC High-K board, and the exposed die pad is connected to a copper pad on the board. This is
connected to the ground plane by a 2x3 via matrix.
RECOMMENDED OPERATING CONDITIONS MIN NOM MAX UNIT
Supply voltage, VCC and IN (Tie together) 4.35(1) 16(2) V
Operating junction temperature range, TJ–40 125 °C
(1) The IC continues to operate below Vmin, to 3.5 V, but the specifications are not tested and not specified.
(2) The inherent switching noise voltage spikes should not exceed the absolute maximum rating on either the IN or OUT pins. A tight layout
minimizes switching noise.
ELECTRICAL CHARACTERISTICS
TJ= 0°C to 125°C and recommended supply voltage range (unless otherwise stated)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
INPUT CURRENTS
VCC > VCC(min), PWM switching 10 mA
I(VCC) VCC supply current VCC > VCC(min), PWM NOT switching 5
VCC > VCC(min), CE = HIGH 315 mA
0°C ≤TJ≤65°C, VI(BAT) = 4.2 V, 3.5
VCC < V(SLP) or VCC > V(SLP) but not in charge
Battery discharge sleep current, (SNS, 0°C ≤TJ≤65°C, VI(BAT) = 8.4 V,
I(SLP) 5.5 mA
BAT, OUT, FB pins) VCC < V(SLP) or VCC > V(SLP) but not in charge
0°C ≤TJ≤65°C, VI(BAT) = 12.6 V, 7.7
VCC < V(SLP) or VCC > V(SLP) but not in charge
VOLTAGE REGULATION
CELLS = Low, in voltage regulation 4.2
Output voltage, bq24103/03A/04/13/13A
VOREG CELLS = High, in voltage regulation 8.4 V
Output voltage, bq24100/08/09 Operating in voltage regulation 4.2
Feedback regulation REF for bq24105/15
VIBAT IIBAT = 25 nA typical into pin 2.1 V
only (W/FB)
TA= 25°C –0.5% 0.5%
Voltage regulation accuracy –1% 1%
CURRENT REGULATION - FAST CHARGE
VLOWV ≤VI(BAT) < VOREG,
IOCHARGE Output current range of converter 150 2000 mA
V(VCC) - VI(BAT) > V(DO-MAX)
100 mV ≤VIREG≤200 mV,
VIREG Voltage regulated across R(SNS) Accuracy –10% 10%
Programmed Where
5 kΩ ≤ RSET1 ≤10 kΩ, Select RSET1 to
program VIREG,
VIREG(measured) = IOCHARGE + RSNS
(–10% to 10% excludes errors due to RSET1
and R(SNS) tolerances)
V(LOWV) ≤VI(BAT) ≤VO(REG),
V(ISET1) Output current set voltage 1 V
V(VCC) ≤VI(BAT) ×V(DO-MAX)
VLOWV ≤VI(BAT) < VO(REG) ,
K(ISET1) Output current set factor 1000 V/A
V(VCC) ≤VI(BAT) +V(DO-MAX)
PRECHARGE AND SHORT-CIRCUIT CURRENT REGULATION
Precharge to fast-charge transition voltage
VLOWV threshold, BAT, 68 71.4 75 %VO(REG)
bq24100/03/03A/04/05/08/09 ICs only
Deglitch time for precharge to fast charge Rising voltage;
t 20 30 40 ms
transition, tRISE, tFALL = 100 ns, 2-mV overdrive
Copyright © 2004–2010, Texas Instruments Incorporated Submit Documentation Feedback 3
Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
VIREG*PRE +0.1V
RSET2 1000,
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
SLUS606O –JUNE 2004–REVISED MARCH 2010
www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
TJ= 0°C to 125°C and recommended supply voltage range (unless otherwise stated)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
IOPRECHG Precharge range VI(BAT) < VLOWV, t < tPRECHG 15 200 mA
V(ISET2) Precharge set voltage, ISET2 VI(BAT) < VLOWV, t < tPRECHG 100 mV
K(ISET2) Precharge current set factor 1000 V/A
100 mV ≤VIREG-PRE ≤100 mV,
VIREG-PRE Voltage regulated across RSNS-Accuracy –20% 20%
(PGM) Where
1.2 kΩ ≤ RSET2 ≤10 kΩ, Select RSET1
to program VIREG-PRE,
VIREG-PRE (Measured) = IOPRE-CHG × RSNS
(–20% to 20% excludes errors due to RSET1
and RSNS tolerances)
CHARGE TERMINATION (CURRENT TAPER) DETECTION
ITERM Charge current termination detection range VI(BAT) > VRCH 15 200 mA
Charge termination detection set voltage,
VTERM VI(BAT) > VRCH 100 mV
ISET2
K(ISET2) Termination current set factor 1000 V/A
Charger termination accuracy VI(BAT) > VRCH –20% 20%
Both rising and falling,
tdg-TERM Deglitch time for charge termination 20 30 40 ms
2-mV overdrive tRISE, tFALL = 100 ns
TEMPERATURE COMPARATOR AND VTSB BIAS REGULATOR
%LTF Cold temperature threshold, TS, % of bias VLTF = VO(VTSB) × % LTF/100 72.8% 73.5% 74.2%
%HTF Hot temperature threshold, TS, % of bias VHTF = VO(VTSB) × % HTF/100 33.7% 34.4% 35.1%
Cutoff temperature threshold, TS, % of
%TCO VTCO = VO(VTSB) × % TCO/100 28.7% 29.3% 29.9%
bias
LTF hysteresis 0.5% 1% 1.5%
Deglitch time for temperature fault, TS 20 30 40
Both rising and falling,
tdg-TS ms
Deglitch time for temperature fault, TS, 2-mV overdrive tRISE, tFALL = 100 ns 500
bq24109, bq24104
VCC > VIN(min),
VO(VTSB) TS bias output voltage 3.15 V
I(VTSB) = 10 mA 0.1 mF≤CO(VTSB) ≤1mF
VCC >IN(min),
VO(VTSB) TS bias voltage regulation accuracy –10% 10%
I(VTSB) = 10 mA 0.1 mF≤CO(VTSB) ≤1mF
BATTERY RECHARGE THRESHOLD
VRCH Recharge threshold voltage Below VOREG 75 100 125 mV/cell
VI(BAT) < decreasing below threshold,
tdg-RCH Deglitch time 20 30 40 ms
tFALL = 100 ns 10-mV overdrive
STAT1, STAT2, AND PG OUTPUTS
VOL(STATx) Low-level output saturation voltage, STATx IO= 5 mA 0.5 V
VOL(PG) Low-level output saturation voltage, PG IO= 10 mA 0.1
CE CMODE, CELLS INPUTS
VIL Low-level input voltage IIL = 5 mA 0 0.4 V
VIH High-level input voltage IIH = 20 mA 1.3 VCC
TTC INPUT
tPRECHG Precharge timer 1440 1800 2160 s
tCHARGE Programmable charge timer range t(CHG) = C(TTC) × K(TTC) 25 572 minutes
Charge timer accuracy 0.01 mF≤C(TTC) ≤0.18 mF -10% 10%
KTTC Timer multiplier 2.6 min/nF
CTTC Charge time capacitor range 0.01 0.22 mF
VTTC_EN TTC enable threshold voltage V(TTC) rising 200 mV
4Submit Documentation Feedback Copyright © 2004–2010, Texas Instruments Incorporated
Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
www.ti.com
SLUS606O –JUNE 2004–REVISED MARCH 2010
ELECTRICAL CHARACTERISTICS (continued)
TJ= 0°C to 125°C and recommended supply voltage range (unless otherwise stated)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
SLEEP COMPARATOR
VCC ≤VIBAT VCC ≤VIBAT
2.3 V ≤VI(OUT) ≤VOREG, for 1 or 2 cells +5 mV +75 mV
VSLP-ENT Sleep-mode entry threshold V
VI(OUT) = 12.6 V, RIN = 1 kΩVCC ≤VIBAT VCC ≤VIBAT
bq24105/15(1) -4 mV +73 mV
VSLP-EXIT Sleep-mode exit hysteresis, 2.3 V ≤VI(OUT)≤VOREG 40 160 mV
VCC decreasing below threshold,
tFALL = 100 ns, 10-mV overdrive, 5 ms
PMOS turns off
tdg-SLP Deglitch time for sleep mode VCC decreasing below threshold,
tFALL = 100 ns, 10-mV overdrive, 20 30 40 ms
STATx pins turn off
UVLO
VUVLO-ON IC active threshold voltage VCC rising 3.15 3.30 3.50 V
IC active hysteresis VCC falling 120 150 mV
PWM
7 V ≤VCC ≤VCC(max) 400
Internal P-channel MOSFET on-resistance 4.5 V ≤VCC ≤7 V 500 mΩ
7 V ≤VCC ≤VCC(max) 130
Internal N-channel MOSFET on-resistance 4.5 V ≤VCC ≤7 V 150
fOSC Oscillator frequency 1.1 MHz
Frequency accuracy –9% 9%
DMAX Maximum duty cycle 100%
DMIN Minimum duty cycle 0%
tTOD Switching delay time (turn on) 20 ns
tsyncmin Minimum synchronous FET on time 60 ns
Synchronous FET minimum current-off 50 400 mA
threshold (2)
BATTERY DETECTION
Battery detection current during time-out
IDETECT VI(BAT) < VOREG – VRCH 2 mA
fault
IDISCHRG1 Discharge current VSHORT < VI(BAT) < VOREG – VRCH 400 mA
tDISCHRG1 Discharge time VSHORT < VI(BAT) < VOREG – VRCH 1 s
IWAKE Wake current VSHORT < VI(BAT) < VOREG – VRCH 2 mA
tWAKE Wake time VSHORT < VI(BAT) < VOREG – VRCH 0.5 s
Begins after termination detected,
IDISCHRG2 Termination discharge current 400 mA
VI(BAT) ≤VOREG
tDISCHRG2 Termination time 262 ms
OUTPUT CAPACITOR
Required output ceramic capacitor range
COUT from SNS to PGND, between inductor and 4.7 10 47 mF
RSNS
Required SNS capacitor (ceramic) at SNS
CSNS 0.1 mF
pin
PROTECTION
Threshold over VOREG to turn off P-channel
VOVP OVP threshold voltage MOSFET, STAT1, and STAT2 during charge 110 117 121 %VO(REG)
or termination states
ILIMIT Cycle-by-cycle current limit 2.6 3.6 4.5 A
VSHORT Short-circuit voltage threshold, BAT VI(BAT) falling 1.95 2 2.05 V/cell
ISHORT Short-circuit current VI(BAT) ≤VSHORT 35 65 mA
TSHTDWN Thermal trip 165 °C
Thermal hysteresis 10 °C
(1) For bq24105 and bq24115 only. RIN is connected between IN and PGND pins and needed to ensure sleep entry.
(2) N-channel always turns on for ~60 ns and then turns off if current is too low.
Copyright © 2004–2010, Texas Instruments Incorporated Submit Documentation Feedback 5
Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
SLUS606O –JUNE 2004–REVISED MARCH 2010
www.ti.com
TERMINAL FUNCTIONS
TERMINAL
bq24100, bq24103, I/O DESCRIPTION
bq24113,
NAME bq24108, bq24103A bq24105 bq24115
bq24113A
bq24109 bq24104
Battery voltage sense input. Bypass it with a 0.1 mF capacitor to PGND if
BAT 14 14 14 14 14 I there are long inductive leads to battery.
Charger enable input. This active low input, if set high, suspends charge
CE 16 16 16 16 16 I and places the device in the low-power sleep mode. Do not pull up this
input to VTSB.
Available on parts with fixed output voltage. Ground or float for single-cell
CELLS 13 13 I operation (4.2 V). For two-cell operation (8.4 V) pull up this pin with a
resistor to VCC.
Charge mode selection: low for precharge as set by ISET2 pin and high
CMODE 7 7 I (pull up to VTSB or <7 V) for fast charge as set by ISET1.
Output voltage analog feedback adjustment. Connect the output of a
FB 13 13 I resistive voltage divider powered from the battery terminals to this node to
adjust the output battery voltage regulation.
IN 3, 4 3, 4 3, 4 3, 4 3, 4 I Charger input voltage.
Charger current set point 1 (fast charge). Use a resistor to ground to set
ISET1 8 8 8 8 8 I/O this value.
Charge current set point 2 (precharge and termination), set by a resistor
connected to ground. A low-level CMODE signal selects the ISET2 charge
ISET2 9 9 9 9 9 I/O rate, but if the battery voltage reaches the regulation set point,
bqSWITCHER changes to voltage regulation regardless of CMODE input.
N/C 13 19 19 - No connection. This pin must be left floating in the application.
1 1 1 1 1 O Charge current output inductor connection. Connect a zener TVS diode
OUT between OUT pin and PGND pin to clamp the voltage spike to protect the
20 20 20 20 20 O power MOSFETs during abnormal conditions.
Power-good status output (open drain). The transistor turns on when a
PG 5 5 5 5 5 O valid VCC is detected. It is turned off in the sleep mode. PG can be used to
drive a LED or communicate with a host processor.
PGND 17,18 17,18 17,18 17,18 17, 18 Power ground input
Charge current-sense input. Battery current is sensed via the voltage drop
SNS 15 15 15 15 15 I developed on this pin by an external sense resistor in series with the
battery pack. A 0.1-mF capacitor to PGND is required.
Charge status 1 (open-drain output). When the transistor turns on
STAT1 2 2 2 2 2 O indicates charge in process. When it is off and with the condition of STAT2
indicates various charger conditions (See Table 1)
Charge status 2 (open-drain output). When the transistor turns on
STAT2 19 19 19 O indicates charge is done. When it is off and with the condition of STAT1
indicates various charger conditions (See Table 1)
Temperature sense input. This input monitors its voltage against an
internal threshold to determine if charging is allowed. Use an NTC
TS 12 12 12 12 12 I thermistor and a voltage divider powered from VTSB to develop this
voltage. (See Figure 10)
Timer and termination control. Connect a capacitor from this node to GND
TTC 7 7 7 I to set the bqSWITCHER timer. When this input is low, the timer and
termination detection are disabled.
VCC 6 6 6 6 6 I Analog device input. A 0.1 mF capacitor to VSS is required.
VSS 10 10 10 10 10 Analog ground input
TS internal bias regulator voltage. Connect capacitor (with a value
VTSB 11 11 11 11 11 O between a 0.1-mF and 1-mF) between this output and VSS.
There is an internal electrical connection between the exposed thermal
pad and VSS. The exposed thermal pad must be connected to the same
Exposed potential as the VSS pin on the printed circuit board. The power pad can
Thermal Pad Pad Pad Pad Pad be used as a star ground connection between VSS and PGND. A common
Pad ground plane may be used. VSS pin must be connected to ground at all
times.
6Submit Documentation Feedback Copyright © 2004–2010, Texas Instruments Incorporated
Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
3IN
4IN
6VCC
2STAT1
19STAT2
5PG
7 TTC
16CE
10VSS
13NC
OUT 1
OUT 20
PGND17
PGND18
SNS15
BAT 14
ISET18
ISET29
TS12
VTSB11
VIN
LOUT
CIN COUT
RSNS
0.1W
1.5KW1.5KW1.5KW
Charge
DoneAdapter
Present
7.5KW
7.5KW
9.31KW
442KW
RT1
103AT
Battery
Pack
Pack-
Pack+
0.1 Fm
0.1 Fm
0.1 Fm
0.1 Fm
10 Fm
10 Hm
10 Fm
BQ24100
RISET2
RISET1
RT2
CTTC
VTSB
MMBZ18VALT1
D1
3IN
4IN
6VCC
2STAT1
19STAT2
5PG
7 TTC
16CE
10VSS
13CELLS
OUT 1
OUT 20
PGND17
PGND18
SNS15
BAT 14
ISET18
ISET29
TS12
VTSB11
VIN
CIN COUT
RSNS
0.1W
1.5KW1.5KW1.5KW
Charge
DoneAdapter
Present
7.5KW
7.5KW
9.31KW
442KW
RT1
103AT
Battery
Pack
Pack-
Pack+
0.1 Fm
0.1 Fm
0.1 Fm
0.1 Fm
10 Fm
10 Hm
10kW
10 Fm
BQ24103
BQ24104
RISET2
RISET1
VIN
LOUT
CTTC
RT2
VTSB
MMBZ18VALT1
(seeNote A)
D1
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
www.ti.com
SLUS606O –JUNE 2004–REVISED MARCH 2010
TYPICAL APPLICATION CIRCUITS
Figure 1. Stand-Alone 1-Cell Application
A. Zener diode not needed for bq24103A and bq24104.
Figure 2. Stand-Alone 2-Cell Application
Copyright © 2004–2010, Texas Instruments Incorporated Submit Documentation Feedback 7
Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
3IN
4IN
6VCC
2STAT1
19STAT2
5PG
7 TTC
16CE
10VSS
13FB
OUT 1
OUT 20
PGND17
PGND18
SNS15
BAT 14
ISET18
ISET29
TS12
VTSB11
VIN
L
CTTC
CIN COUT
RSNS
0.1W
1.5KW1.5KW1.5KW
Charge
DoneAdapter
Present
7.5KW
7.5KW
9.31KW
442KW
RT1
103AT
Battery
Pack
Pack-
Pack+
0.1 Fm
0.1 Fm
0.1 Fm
0.1 Fm
10 Fm
10 Hm
10 Fm
BQ24105
RISET2
RISET1
100KW
301KW
RT2
VTSB
OUT
MMBZ18VALT1
D1
3IN
4IN
6VCC
2STAT1
19NC
5PG
7CMODE
16CE
10VSS
13CELLS
OUT 1
OUT 20
PGND17
PGND18
SNS15
BAT 14
ISET18
ISET29
TS12
VTSB11
VIN
LOUT
CIN COUT
RSNS
0.1W
7.5KW
7.5KW
9.31KW
442KW
VTSB
103AT
Battery
Pack
Pack-
Pack+
0.1 Fm
0.1 Fm
0.1 Fm
10 Fm
10 Hm
10 Fm
BQ24113,
BQ24113A
RISET2
RISET1
RT1
RT2
TOHOSTCONTROLLER
MMBZ18VALT1
(seeNote A)
D1
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
SLUS606O –JUNE 2004–REVISED MARCH 2010
www.ti.com
TYPICAL APPLICATION CIRCUITS (continued)
Figure 3. Stand-Alone 2-Cell Application
A. Zener diode not needed for bq24113A.
Figure 4. System-Controlled Application
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Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
I -ChargeCurrent- A
(BAT)
Efficiency-%
0
80
0.5 1 1.5 2
50
60
70
100
90
V =4.2V
(BAT)
1-Cell
V =16V
I
V =5V
I
I -ChargeCurrent- A
(BAT)
Efficiency-%
V =8.4V
(BAT)
2-Cell
V =9V
I
0
80
0.5 1 1.5 2
50
60
70
100
90
V =16V
I
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
www.ti.com
SLUS606O –JUNE 2004–REVISED MARCH 2010
TYPICAL OPERATING PERFORMANCE
EFFICIENCY EFFICIENCY
vs vs
CHARGE CURRENT CHARGE CURRENT
Figure 5. Figure 6.
Copyright © 2004–2010, Texas Instruments Incorporated Submit Documentation Feedback 9
Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
PG
STAT1
STAT2
VSS
TS
PGND
CE
OUT
OUT
PGND
SNS
BAT
CELLS(bq24103/04/13)
FB(bq24105/15)
N/C(bq24100)
ISET1
ISET2
VCC
VCC
TTC
VCC
0.5V
VCC
1V
TIMERCLK
0.25V DSABL_TERM
0.75V
TIMER
FFCHAIN
PRE-CHG
TIMEOUT
FASTCHG
TIMEOUT
RESET
bqSWITCHER
bq2410x
VTSB
VTSB
LTF
HTF
TCO
RSET2
RSET1
IN
VIN
VTSB
VCC
IN
Voltage
Reference
VTSB VCC-6V
UVLO/POR
Vuvlo
POR
2.1V
+
-
1V
+
-
0.1V
1k
+
-
+
-
+
-
IbatReg
VbatReg
VCC
VCC
20uA
2.1V
+
-
VCC
20uA
1V BAT
FB
SPIN
1C
2C
VTSB
VTSB
MOD
OSC
S
RQ
Q
SUSPEND
UVLO/POR
TIMEOUTFAULT
TERM
PkILimorOVP
RAMP
VCC
IVCC/10
(Vpp=VCC/10)
RAMP
MOD
VCC
VCC-6V
6V
TG
BG
SYNCH
COMPENSA
TION
10
toFB
Co
Lo
10 F
Rsns
+
Pack+
Pack-
Temp
SLEEP VCC
BAT
+
-
50mV
TEMP
SUSPEND
SUSPEND
TS
SPIN
TERM
SLEEP
SUSPEND
OVP
Charge
TERM
BAT
Vreg
VCC
Discharge
Charge
Wake
SNS+
BAT_PRS_dischg
2.1V
Vrch
LowV
VSHORT
30ms
Dgltch
BAT
30ms
Dgltch
Vovp
OVP
CONTROL
LOGIC
(STATE
MACHINE)
OVP
TIMEOUT
SUSPEND
UVLO/
POR
Vrch
Term_Det
LowV
BAT_PRS_
disch
VSHORT
PkILim
SYNCH
SLEEP
ProtectionPMOSFETisOFFwhennotcharging
orinSLEEP topreventdischargeofbattery
whenIN<BA
T
CE
Isynch Synch
V(150mA)
BG
TG
CHARGE
DISCHARGE
WAKE
PRE-CHARGE
FASTCHG
Disable
PRE-CHG
Disable
+
-
FASTCHG
Disable
BAT
-
1k
+
SNS
Term_Det
0.1V
30ms
dgltch
Gate
Drive FB
SPIN
ONLY
CLAMP
Icntrl
PkILim
V(3.6A)
SenseFET
SenseFET
VCC
VCC-6V
PG
SLEEP
CHARGE Poff
FB
Term&
Timer
Disable
H
*
*PatentPending#36889
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
SLUS606O –JUNE 2004–REVISED MARCH 2010
www.ti.com
FUNCTIONAL BLOCK DIAGRAM
10 Submit Documentation Feedback Copyright © 2004–2010, Texas Instruments Incorporated
Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
Battery
Detect?
TS Pin
in LTF to HTF
Range? Indicate CHARGE
SUSPEND
No
VBAT<VLOWV Yes
No
VBAT<VLOWV
T30min
Expired? No
Yes
Indicate Fault
Battery
Replaced?
(Vbat < Vrch?)
Yes
No
Yes
FSTCHG Timer
Expired?
No
Suspend Charge
Indicate Charge-
In-Progress
Regulate
IPRECHG
Indicate Charge-
In-Progress
Regulate
Current or Voltage
Indicate BATTERY
ABSENT
Check for Battery
Presence
No
Reset and Start
T30min timer
TS pin
in LTF to TCO
range? Indicate CHARGE
SUSPEND
No
Suspend Charge
POR
Yes
Yes
Reset and Start
FSTCHG timer
TS Pin
in LTF to TCO
Range?
ITERM detection?
Yes
Yes
VBAT < VRCH?No Indicate DONE
Charge Complete
Yes
VBAT<VLOWV
No
No
- Fault Condition
- Enable IDETECT
No
Yes
Yes
TS pin
in LTF to HTF
range?
No
TS pin
in LTF to HTF
range?
Indicate CHARGE
SUSPEND
Suspend Charge
No
No
Indicate Charge-
In-Progress
- Turn Off Charge
- Enable IDISCHG for
tDISCHG2
Indicate BATTERY
ABSENT
Battery Removed
Yes
Yes
Yes
*
*NOTE: If the TTC pin is
pulled low, the safety timer
and termination are
disabled; the charger
continues to regulate, and
the STAT pins indicate
charge in progress.
If the TTC pin is pulled high
(VTSB), only the safety
timer is disabled
(termination is normal).
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
www.ti.com
SLUS606O –JUNE 2004–REVISED MARCH 2010
OPERATIONAL FLOW CHART
Figure 7. Stand-Alone Version Operational Flow Chart
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Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
Vcc > VI(BAT)
Checked at All
CMODE=Low Yes
No
No
Yes
Indicate Charge-
In-Progress
Regulate
IO(PRECHG)
Indicate Charge-
In-Progress
Regulate Current
or Voltage
No
POR
Yes
/CE=High
CMODE=Low
No
Yes
Indicate DONE
Turn Off Charge
Indicate SLEEP
MODE
SLEEP MODE
CMODE=High
No
Yes
/CE=Low
Yes
Yes
No
/CE=Low
Yes
No
/CE=High
No
or
VIBAT in VREG
Yes
Yes
Times
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
SLUS606O –JUNE 2004–REVISED MARCH 2010
www.ti.com
Figure 8. System-Controlled Operational Flow Chart
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Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
UDG-04037
VLOW
Charge Voltage
Charge Current
Regulation Voltage
Regulation Current
VSHORT
Voltage Regulation and
Charge Termination Phase
Precharge
Timer Programmable
Safety Timer
Current Regulation Phase
Precharge
Phase
Precharge
and Termination
ISHORT
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
www.ti.com
SLUS606O –JUNE 2004–REVISED MARCH 2010
DETAILED DESCRIPTION
The bqSWITCHER™ supports a precision Li-ion or Li-polymer charging system for one-, two-, or three-cell
applications. See Figure 7 and Figure 8 for a typical charge profile.
Figure 9. Typical Charging Profile
PWM Controller
The bq241xx provides an integrated fixed 1MHz frequency voltage-mode controller with Feed-Forward function
to regulate charge current or voltage. This type of controller is used to help improve line transient response,
thereby simplifying the compensation network used for both continuous and discontinuous current conduction
operation. The voltage and current loops are internally compensated using a Type-III compensation scheme that
provides enough phase boost for stable operation, allowing the use of small ceramic capacitors with very low
ESR. There is a 0.5V offset on the bottom of the PWM ramp to allow the device to operate between 0% to 100%
duty cycle.
The internal PWM gate drive can directly control the internal PMOS and NMOS power MOSFETs. The high-side
gate voltage swings from VCC (when off), to VCC-6 (when on and VCC is greater than 6V) to help reduce the
conduction losses of the converter by enhancing the gate an extra volt beyond the standard 5V. The low-side
gate voltage swings from 6V, to turn on the NMOS, down to PGND to turn it off. The bq241xx has two back to
back common-drain P-MOSFETs on the high side. An input P-MOSFET prevents battery discharge when IN is
lower than BAT. The second P-MOSFET behaves as the switching control FET, eliminating the need of a
bootstrap capacitor.
Cycle-by-cycle current limit is sensed through the internal high-side sense FET. The threshold is set to a nominal
3.6A peak current. The low-side FET also has a current limit that decides if the PWM Controller will operate in
synchronous or non-synchronous mode. This threshold is set to 100mA and it turns off the low-side NMOS
before the current reverses, preventing the battery from discharging. Synchronous operation is used when the
current of the low-side FET is greater than 100mA to minimize power losses.
Copyright © 2004–2010, Texas Instruments Incorporated Submit Documentation Feedback 13
Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
RT2=
V RTH RTH
O(VTSB) COLD HOT
´ ´ ´ 1
VLTF
1
VHTF
-
RTHHOT ´ - ´RTHCOLD
VO(VTSB)
HTF
V-1
( )
VO(VTSB)
LTF
V-1
( )
1
RT2
1
RTHCOLD
+
VO(VTSB)
LTF
V-1
RT1=
Where:
V =V % /100
LTF O(VTSB) LTF 100¸
V =V % /100
HTF O(VTSB) HTF 100¸
´
´
Charge Suspend
Temperature Range
to Initiate Charge
Charge Suspend Charge Suspend
Temperature Range
During Charge Cycle
Charge Suspend
V(LTF)
V(HTF)
V(TCO)
VSS
VCC
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
SLUS606O –JUNE 2004–REVISED MARCH 2010
www.ti.com
Temperature Qualification
The bqSWITCHER continuously monitors battery temperature by measuring the voltage between the TS pin and
VSS pin. A negative temperature coefficient thermistor (NTC) and an external voltage divider typically develop
this voltage. The bqSWITCHER compares this voltage against its internal thresholds to determine if charging is
allowed. To initiate a charge cycle, the battery temperature must be within the V(LTF)-to-V(HTF) thresholds. If
battery temperature is outside of this range, the bqSWITCHER suspends charge and waits until the battery
temperature is within the V(LTF)-to-V(HTF) range. During the charge cycle (both precharge and fast charge), the
battery temperature must be within the V(LTF)-to-V(TCO) thresholds. If battery temperature is outside of this range,
the bqSWITCHER suspends charge and waits until the battery temperature is within the V(LTF)-to-V(HTF) range.
The bqSWITCHER suspends charge by turning off the PWM and holding the timer value (i.e., timers are not
reset during a suspend condition). Note that the bias for the external resistor divider is provided from the VTSB
output. Applying a constant voltage between the V(LTF)-to-V(HTF) thresholds to the TS pin disables the
temperature-sensing feature.
(1)
Figure 10. TS Pin Thresholds
Battery Preconditioning (Precharge)
On power up, if the battery voltage is below the VLOWV threshold, the bqSWITCHER applies a precharge current,
IPRECHG, to the battery. This feature revives deeply discharged cells. The bqSWITCHER activates a safety timer,
tPRECHG, during the conditioning phase. If the VLOWV threshold is not reached within the timer period, the
bqSWITCHER turns off the charger and enunciates FAULT on the STATx pins. In the case of a FAULT
condition, the bqSWITCHER reduces the current to IDETECT. IDETECT is used to detect a battery replacement
condition. Fault condition is cleared by POR or battery replacement.
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Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
IO(PRECHG) +K(ISET2) V(ISET2)
ǒR(ISET2) R(SNS)Ǔ
R(SNS) +VIREG
IOCHARGE
RISET1 +KISET1 VISET1
RSNS ICHARGE
OREG IBAT
(R1 + R2)
V = x V
R2
RCH
(R1 + R2)
V = x 50 mV
R2
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
www.ti.com
SLUS606O –JUNE 2004–REVISED MARCH 2010
The magnitude of the precharge current, IO(PRECHG), is determined by the value of programming resistor, R(ISET2),
connected to the ISET2 pin.
(2)
where
RSNS is the external current-sense resistor
V(ISET2) is the output voltage of the ISET2 pin
K(ISET2) is the V/A gain factor
V(ISET2) and K(ISET2) are specified in the Electrical Characteristics table.
Battery Charge Current
The battery charge current, IO(CHARGE), is established by setting the external sense resistor, R(SNS), and the
resistor, R(ISET1), connected to the ISET1 pin.
In order to set the current, first choose R(SNS) based on the regulation threshold VIREG across this resistor. The
best accuracy is achieved when the VIREG is between 100mV and 200mV.
(3)
If the results is not a standard sense resistor value, choose the next larger value. Using the selected standard
value, solve for VIREG. Once the sense resistor is selected, the ISET1 resistor can be calculated using the
following equation:
(4)
Battery Voltage Regulation
The voltage regulation feedback occurs through the BAT pin. This input is tied directly to the positive side of the
battery pack. The bqSWITCHER monitors the battery-pack voltage between the BAT and VSS pins. The
bqSWITCHER is offered in a fixed single-cell voltage version (4.2 V) and as a one-cell or two-cell version
selected by the CELLS input. A low or floating input on the CELLS selects single-cell mode (4.2 V) while a
high-input through a resistor selects two-cell mode (8.4 V).
For the bq24105 and bq24115, the output regulation voltage is specified as:
(5)
where R1 and R2 are resistor divider from BAT to FB and FB to VSS, respectively.
The bq24105 and bq24115 recharge threshold voltage is specified as:
(6)
Copyright © 2004–2010, Texas Instruments Incorporated Submit Documentation Feedback 15
Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
ITERM +K(ISET2) VTERM
ǒR(ISET2) R(SNS)Ǔ
tCHARGE +C(TTC) K(TTC)
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
SLUS606O –JUNE 2004–REVISED MARCH 2010
www.ti.com
Charge Termination and Recharge
The bqSWITCHER monitors the charging current during the voltage regulation phase. Once the termination
threshold, ITERM, is detected, the bqSWITCHER terminates charge. The termination current level is selected by
the value of programming resistor, R(ISET2), connected to the ISET2 pin.
(7)
where
R(SNS) is the external current-sense resistor
VTERM is the output of the ISET2 pin
K(ISET2) is the A/V gain factor
VTERM and K(ISET2) are specified in the Electrical Characteristics table
As a safety backup, the bqSWITCHER also provides a programmable charge timer. The charge time is
programmed by the value of a capacitor connected between the TTC pin and GND by the following formula:
(8)
where
C(TTC) is the capacitor connected to the TTC pin
K(TTC) is the multiplier
A new charge cycle is initiated when one of the following conditions is detected:
• The battery voltage falls below the VRCH threshold.
• Power-on reset (POR), if battery voltage is below the VRCH threshold
• CE toggle
• TTC pin, described as follows.
In order to disable the charge termination and safety timer, the user can pull the TTC input below the VTTC_EN
threshold. Going above this threshold enables the termination and safety timer features and also resets the timer.
Tying TTC high disables the safety timer only.
16 Submit Documentation Feedback Copyright © 2004–2010, Texas Instruments Incorporated
Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
www.ti.com
SLUS606O –JUNE 2004–REVISED MARCH 2010
Sleep Mode
The bqSWITCHER enters the low-power sleep mode if the VCC pin is removed from the circuit. This feature
prevents draining the battery during the absence of VCC.
Charge Status Outputs
The open-drain STAT1 and STAT2 outputs indicate various charger operations as shown in Table 1. These
status pins can be used to drive LEDs or communicate to the host processor. Note that OFF indicates that the
open-drain transistor is turned off.
Table 1. Status Pins Summary
Charge State STAT1 STAT2
Charge-in-progress ON OFF
Charge complete OFF ON
Charge suspend, timer fault, overvoltage, sleep mode, battery absent OFF OFF
Table 2. Status Pins Summary (bq24104, bq24108 and bq24109 only)
Charge State STAT1 STAT2
Battery absent OFF OFF
Charge-in-progress ON OFF
Charge complete OFF ON
Battery over discharge, VI(BAT) < V(SC) ON/OFF (0.5 Hz) OFF
Charge suspend (due to TS pin and internal thermal protection) ON/OFF (0.5 Hz) OFF
Precharge timer fault ON/OFF (0.5 Hz) OFF
Fast charge timer fault ON/OFF (0.5 Hz) OFF
Sleep mode OFF OFF
PG Output
The open-drain PG (power good) indicates when the AC-to-DC adapter (i.e., VCC) is present. The output turns on
when sleep-mode exit threshold, VSLP-EXIT, is detected. This output is turned off in the sleep mode. The PG pin
can be used to drive an LED or communicate to the host processor.
CE Input (Charge Enable)
The CE digital input is used to disable or enable the charge process. A low-level signal on this pin enables the
charge and a high-level VCC signal disables the charge. A high-to-low transition on this pin also resets all timers
and fault conditions. Note that the CE pin cannot be pulled up to VTSB voltage. This may create power-up
issues.
Copyright © 2004–2010, Texas Instruments Incorporated Submit Documentation Feedback 17
Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
f0+1
2p LOUT COUT
Ǹ
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
SLUS606O –JUNE 2004–REVISED MARCH 2010
www.ti.com
Timer Fault Recovery
As shown in FIGURE 10, bqSWITCHER provides a recovery method to deal with timer fault conditions. The
following summarizes this method.
Condition 1 VI(BAT) above recharge threshold (VOREG - VRCH) and timeout fault occurs.
Recovery method: bqSWITCHER waits for the battery voltage to fall below the recharge threshold. This could
happen as a result of a load on the battery, self-discharge or battery removal. Once the battery falls below the
recharge threshold, the bqSWITCHER clears the fault and enters the battery absent detection routine. A POR or
CE toggle also clears the fault.
Condition 2 Charge voltage below recharge threshold (VOREG – VRCH) and timeout fault occurs
Recovery method: Under this scenario, the bqSWITCHER applies the IDETECT current. This small current is used
to detect a battery removal condition and remains on as long as the battery voltage stays below the recharge
threshold. If the battery voltage goes above the recharge threshold, then the bqSWITCHER disables the IDETECT
current and executes the recovery method described in Condition 1. Once the battery falls below the recharge
threshold, the bqSWITCHER clears the fault and enters the battery absent detection routine. A POR or CE toggle
also clears the fault.
Output Overvoltage Protection (Applies To All Versions)
The bqSWITCHER provides a built-in overvoltage protection to protect the device and other components against
damages if the battery voltage gets too high, as when the battery is suddenly removed. When an overvoltage
condition is detected, this feature turns off the PWM and STATx pins. The fault is cleared once VIBAT drops to the
recharge threshold (VOREG – VRCH).
Functional Description for System-Controlled Version (bq2411x)
For applications requiring charge management under the host system control, the bqSWITCHER (bq2411x)
offers a number of control functions. The following section describes these functions.
Precharge And Fast-Charge Control
A low-level signal on the CMODE pin forces the bqSWITCHER to charge at the precharge rate set on the ISET2
pin. A high-level signal forces charge at fast-charge rate as set by the ISET1 pin. If the battery reaches the
voltage regulation level, VOREG, the bqSWITCHER transitions to voltage regulation phase regardless of the status
of the CMODE input.
Charge Termination And Safety Timers
The charge timers and termination are disabled in the system-controlled versions of the bqSWITCHER. The host
system can use the CE input to enable or disable charge. When an overvoltage condition is detected, the
charger process stops, and all power FETs are turned off.
Inductor, Capacitor, and Sense Resistor Selection Guidelines
The bqSWITCHER provides internal loop compensation. With this scheme, best stability occurs when LC
resonant frequency, fois approximately 16 kHz (8 kHz to 32 kHz). Equation 9 can be used to calculate the value
of the output inductor and capacitor. Table 3 provides a summary of typical component values for various charge
rates.
(9)
Table 3. Output Components Summary
CHARGE CURRENT 0.5 A 1 A 2 A
Output inductor, LOUT 22 mH 10 mH 4.7 mH
Output capacitor, COUT 4.7 mF 10 mF 22 mF (or 2 × 10 mF) ceramic
Sense resistor, R(SNS) 0.2 Ω0.1 Ω0.05 Ω
18 Submit Documentation Feedback Copyright © 2004–2010, Texas Instruments Incorporated
Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
No
Yes
Yes
BATTERY
PRESENT,
Begin Charge
No BATTERY
PRESENT,
Begin Charge
BATTERY
ABSENT
Yes
Enable
I(DETECT)
for t(DETECT)
VI(BAT)<V(LOWV)
Apply I(WAKE)
for t(WAKE)
POR or VRCH Detection routine runs on power up
and if VBAT drops below refresh
threshold due to removing battery
or discharging battery.
VI(BAT) >
VO(REG)
-VRCH
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
www.ti.com
SLUS606O –JUNE 2004–REVISED MARCH 2010
Battery Detection
For applications with removable battery packs, bqSWITCHER provides a battery absent detection scheme to
reliably detect insertion and/or removal of battery packs.
Figure 11. Battery Absent Detection for bq2410x ICs only
The voltage at the BAT pin is held above the battery recharge threshold, VOREG – VRCH, by the charged battery
following fast charging. When the voltage at the BAT pin falls to the recharge threshold, either by a load on the
battery or due to battery removal, the bqSWITCHER begins a battery absent detection test. This test involves
enabling a detection current, IDISCHARGE1, for a period of tDISCHARGE1 and checking to see if the battery voltage is
below the short circuit threshold, VSHORT. Following this, the wake current, IWAKE is applied for a period of tWAKE
and the battery voltage is checked again to ensure that it is above the recharge threshold. The purpose of this
current is to attempt to close an open battery pack protector, if one is connected to the bqSWITCHER.
Passing both of the discharge and charge tests indicates a battery absent fault at the STAT pins. Failure of either
test starts a new charge cycle. For the absent battery condition, typically the voltage on the BAT pin rises and
falls between 0V and VOVPthresholds indefinitely.
Copyright © 2004–2010, Texas Instruments Incorporated Submit Documentation Feedback 19
Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
tWAKE tDISCHRG1
VOREG
2V/cell
IWAKE
-IDISCHRG1
Yes
Battery
Detected
No
Battery
Detected
No
Battery
Detected
Battery
Connected
VBAT
IBAT
tDISCHRG1
CMAX_DIS +IDISCHRG1 tDISCHRG1
VOREG *VSHORT
CMAX_DIS +400 mA 1s
4.2 V *2 V
CMAX_DIS +182 mF
CMAX_WAKE +IWAKE tWAKE
ǒVOREG *VRCHǓ*0 V
CMAX_WAKE +2 mA 0.5s
(4.2 V *0.1 V) *0V
CMAX_WAKE +244 mF
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
SLUS606O –JUNE 2004–REVISED MARCH 2010
www.ti.com
Figure 12. Battery Detect Timing Diagram
Battery Detection Example
In order to detect a no battery condition during the discharge and wake tests, the maximum output capacitance
should not exceed the following:
a. Discharge (IDISCHRG1 = 400 mA, tDISCHRG1 = 1s, VSHORT = 2V)
(10)
b. Wake (IWAKE = 2 mA, tWAKE = 0.5 s, VOREG – VRCH = 4.1V)
(11)
Based on these calculations the recommended maximum output capacitance to ensure proper operation of the
battery detection scheme is 100 mF which will allow for process and temperature variations.
Figure 13 shows the battery detection scheme when a battery is inserted. Channel 3 is the output signal and
Channel 4 is the output current. The output signal switches between VOREG and GND until a battery is inserted.
Once the battery is detected, the output current increases from 0A to 1.3A, which is the programmed charge
current for this application.
20 Submit Documentation Feedback Copyright © 2004–2010, Texas Instruments Incorporated
Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
www.ti.com
SLUS606O –JUNE 2004–REVISED MARCH 2010
Figure 13. Battery Detection Waveform When a Battery is Inserted
Figure 14 shows the battery detection scheme when a battery is removed. Channel 3 is the output signal and
Channel 4 is the output current. When the battery is removed, the output signal goes up due to the stored energy
in the inductor and it crosses the VOREG – VRCH threshold. At this point the output current goes to 0A and the IC
terminates the charge process and turns on the IDISCHG2 for tDISCHG2. This causes the output voltage to fall down
below the VOREG – VRCHG threshold triggering a Battery Absent condition and starting the battery detection
scheme.
Figure 14. Battery Detection Waveform When a Battery is Removed
Copyright © 2004–2010, Texas Instruments Incorporated Submit Documentation Feedback 21
Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
+
-
FASTCHG
Disable
BAT
-
KISET2
+
+
ISET2
RISET2
RSNS
OUT
-
ICHARGE
SNS
ICHARGE +VISET2 K(ISET2)
RSNS RISET2
CH3=InductorCurrent
CH2
10V/div
CH2
16V
CH1
200mV/div
CH3
500mA/div
CH3
0 A
CH1
0V
CH1=ISET2
CH2=OUT
t=Time=200 s/divm
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
SLUS606O –JUNE 2004–REVISED MARCH 2010
www.ti.com
Current Sense Amplifier
BQ241xx family offers a current sense amplifier feature that translates the charge current into a DC voltage.
Figure 15 is a block diagram of this feature.
Figure 15. Current Sense Amplifier
The voltage on the ISET2 pin can be used to calculate the charge current. Equation 12 shows the relationship
between the ISET2 voltage and the charge current:
(12)
This feature can be used to monitor the charge current (Figure 16) during the current regulation phase
(Fastcharge only) and the voltage regulation phase. The schematic for the application circuit for this waveform is
shown in Figure 18
Figure 16. Current Sense Amplifier Charge Current Waveform
22 Submit Documentation Feedback Copyright © 2004–2010, Texas Instruments Incorporated
Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
DIL+ICHARGE ICHARGERipple
LOUT +VBAT ǒVINMAX *VBATǓ
VINMAX ƒ DIL
LOUT +4.2 (16 *4.2)
16 (1.1 106) (1.33 0.3)
LOUT +7.06 mH
DIL+VBAT ǒVINMAX *VBATǓ
VINMAX ƒ LOUT
DIL+4.2 (16 *4.2)
16 (1.1 106) (10 10*6)
DIL+0.282 A
ILPK +IOUT )
DIL
2
ILPK +1.33 )0.282
2
ILPK +1.471 A
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
www.ti.com
SLUS606O –JUNE 2004–REVISED MARCH 2010
bqSWITCHER SYSTEM DESIGN EXAMPLE
The following section provides a detailed system design example for the bq24100.
System Design Specifications:
• VIN = 16V
• VBAT = 4.2V (1-Cell)
• ICHARGE = 1.33 A
• IPRECHARGE = ITERM = 133 mA
• Safety Timer = 5 hours
• Inductor Ripple Current = 30% of Fast Charge Current
• Initiate Charge Temperature = 0°C to 45°C
1. Determine the inductor value (LOUT) for the specified charge current ripple:
(13)
Set the output inductor to standard 10 mH. Calculate the total ripple current with using the 10 mH inductor:
(14)
Calculate the maximum output current (peak current):
(15)
Use standard 10 mH inductor with a saturation current higher than 1.471A. (i.e., Sumida CDRH74-100)
Copyright © 2004–2010, Texas Instruments Incorporated Submit Documentation Feedback 23
Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
ƒo+1
2pLOUT COUT
Ǹ
COUT +1
4p2 ƒo2 LOUT
COUT +1
4p2 (16 103)2 (10 10*6)
COUT +9.89 mF
RSNS +VRSNS
ICHARGE
RSNS +100 mV
1.33 A
RSNS +0.075 W
PRSNS +ICHARGE2 RSNS
PRSNS +1.332 0.1
PRSNS +176.9 mW
RISET1 +KISET1 VISET1
RSNS ICHARGE
RISET1 +1000 1.0
0.1 1.33
RISET1 +7.5 kW
RISET2 +KISET2 VISET2
RSNS IPRECHARGE
RISET2 +1000 0.1
0.1 0.133
RISET2 +7.5 kW
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
SLUS606O –JUNE 2004–REVISED MARCH 2010
www.ti.com
2. Determine the output capacitor value (OUT) using 16 kHz as the resonant frequency:
(16)
Use standard value 10 mF, 25V, X5R, ±20% ceramic capacitor (i.e., Panasonic 1206 ECJ-3YB1E106M
3. Determine the sense resistor using the following equation:
(17)
In order to get better current regulation accuracy (±10%), let VRSNS be between 100 mV and 200 mV. Use
VRSNS = 100 mV and calculate the value for the sense resistor.
(18)
This value is not standard in resistors. If this happens, then choose the next larger value which in this case is
0.1Ω. Using the same equation (15) the actual VRSNS will be 133mV. Calculate the power dissipation on the
sense resistor:
(19)
Select standard value 100 mΩ, 0.25W 0805, 1206 or 2010 size, high precision sensing resistor. (i.e., Vishay
CRCW1210-0R10F)
4. Determine ISET 1 resistor using the following equation:
(20)
Select standard value 7.5 kΩ, 1/16W ±1% resistor (i.e., Vishay CRCWD0603-7501-F)
5. Determine ISET 2 resistor using the following equation:
(21)
Select standard value 7.5 kΩ, 1/16W ±1% resistor (i.e., Vishay CRCWD0603-7501-F)
24 Submit Documentation Feedback Copyright © 2004–2010, Texas Instruments Incorporated
Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
CTTC +tCHARGE
KTTC
CTTC +300 m
2.6 mńnF
CTTC +115.4 nF
103AT
RT1
RT2
VTSB
TS
RTH
RT2=
V RTH RTH
O(VTSB) COLD HOT
´ ´ ´ 1
VLTF
1
VHTF
-
RTHHOT ´ - ´RTHCOLD
VO(VTSB)
HTF
V-1
( )
VO(VTSB)
LTF
V-1
( )
1
RT2
1
RTHCOLD
+
VO(VTSB)
LTF
V-1
RT1=
Where:
V =V % /100
LTF O(VTSB) LTF 100¸
V =V % /100
HTF O(VTSB) HTF 100¸
´
´
RTHCOLD +27.28 kW
RT1 +9.31 kW
RTHHOT +4.912 kW
RT2 +442 kW
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
www.ti.com
SLUS606O –JUNE 2004–REVISED MARCH 2010
6. Determine TTC capacitor (TTC) for the 5.0 hours safety timer using the following equation:
(22)
Select standard value 100 nF, 16V, X7R, ±10% ceramic capacitor (i.e., Panasonic ECJ-1VB1C104K). Using
this capacitor the actual safety timer will be 4.3 hours.
7. Determine TS resistor network for an operating temperature range from 0°C to 45°C.
Figure 17. TS Resistor Network
Assuming a 103AT NTC Thermistor on the battery pack, determine the values for RT1 and RT2 using the
following equations:
(23)
(24)
Copyright © 2004–2010, Texas Instruments Incorporated Submit Documentation Feedback 25
Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
3IN
4IN
6VCC
2STAT1
19STAT2
5 PG
7 TTC
16 CE
10VSS
13NC
OUT 1
OUT 20
PGND17
PGND18
SNS15
BAT 14
ISET18
ISET29
TS12
VTSB11
VIN
CIN COUT
RSNS
0.1W
1.5KW1.5KW1.5KW
Charge
DoneAdapter
Present
7.5KW
7.5KW
9.31KW
442KW
VTSB
103AT
Battery
Pack
Pack-
Pack+
0.1 Fm
0.1 Fm
0.1 Fm
0.1 Fm
10 Fm
10 Hm
10 Fm
BQ24100
D1
RSYS
CTTC
LOUT
MMBZ18VALT1
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
SLUS606O –JUNE 2004–REVISED MARCH 2010
www.ti.com
APPLICATION INFORMATION
Charging Battery and Powering System Without Affecting Battery Charge and Termination
Figure 18. Application Circuit for Charging a Battery and Powering a System
Without Affecting Termination
The bqSWITCHER was designed as a stand-alone battery charger but can be easily adapted to power a system
load, while considering a few minor issues.
Advantages:
1. The charger controller is based only on what current goes through the current-sense resistor (so precharge,
constant current, and termination all work well), and is not affected by the system load.
2. The input voltage has been converted to a usable system voltage with good efficiency from the input.
3. Extra external FETs are not needed to switch power source to the battery.
4. The TTC pin can be grounded to disable termination and keep the converter running and the battery fully
charged, or let the switcher terminate when the battery is full and then run off of the battery via the sense
resistor.
Other Issues:
1. If the system load current is large (≥1 A), the IR drop across the battery impedance causes the battery
voltage to drop below the refresh threshold and start a new charge. The charger would then terminate due to
low charge current. Therefore, the charger would cycle between charging and termination. If the load is
smaller, the battery would have to discharge down to the refresh threshold resulting in a much slower
cycling. Note that grounding the TTC pin keeps the converter on continuously.
2. If TTC is grounded, the battery is kept at 4.2 V (not much different than leaving a fully charged battery set
unloaded).
3. Efficiency declines 2-3% hit when discharging through the sense resistor to the system.
26 Submit Documentation Feedback Copyright © 2004–2010, Texas Instruments Incorporated
Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
3IN
4IN
6VCC
2STAT1
19STAT2
5PG
7 TTC
16CE
10VSS
13FB
OUT 1
OUT 20
PGND17
PGND18
SNS15
BAT 14
ISET18
ISET29
TS12
VTSB11
VIN
L
CTTC
CIN COUT
RSNS
0.1W
1.5KW1.5KW1.5KW
Charge
DoneAdapter
Present
7.5KW
20KW
9.31KW
442KW
RT1
103AT
Battery
Pack
Pack-
Pack+
0.1 Fm
0.1 Fm
0.1 Fm
0.1 Fm
10 Fm
10 Hm
10 Fm
BQ24105
RISET2
RISET1
200KW
143KW
RT2
VTSB
OUT
MMBZ18VALT1
D1
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
www.ti.com
SLUS606O –JUNE 2004–REVISED MARCH 2010
Using bq24105 to Charge the LiFePO4Battery
The LiFePO4battery has many unique features such as a high thermal runaway temperature, discharge current
capability, and charge current. These special features make it attractive in many applications such as power
tools. The recommended charge voltage is 3.6 V and termination current is 50 mA. Figure 19 shows an
application circuit for charging one cell LiFePO4 using bq24105. The charge voltage is 3.6 V and recharge
voltage is 3.516 V. The fast charging current is set to 1.33 A while the termination current is 50 mA. This circuit
can be easily changed to support two or three cell applications. However, only 84 mV difference between
regulation set point and rechargeable threshold makes it frequently enter into recharge mode when small load
current is applied. This can be solved by lower down the recharge voltage threshold to 200 mV to discharge
more energy from the battery before it enters recharge mode again. See the application report, Using the
bq24105/25 to Charge LiFePO4Battery (SLUA443), for additional details. The recharge threshold should be
selected according to real application conditions.
Figure 19. 1-Cell LiFePO4 Application
Copyright © 2004–2010, Texas Instruments Incorporated Submit Documentation Feedback 27
Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
q(JA) +TJ*TA
P
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
SLUS606O –JUNE 2004–REVISED MARCH 2010
www.ti.com
THERMAL CONSIDERATIONS
The SWITCHER is packaged in a thermally enhanced MLP package. The package includes a thermal pad to
provide an effective thermal contact between the IC and the printed circuit board (PCB). Full PCB design
guidelines for this package are provided in the application report entitled: QFN/SON PCB Attachment
(SLUA271).
The most common measure of package thermal performance is thermal impedance (qJA) measured (or modeled)
from the chip junction to the air surrounding the package surface (ambient). The mathematical expression for qJA
is:
(25)
Where:
TJ= chip junction temperature
TA= ambient temperature
P = device power dissipation
Factors that can greatly influence the measurement and calculation of qJA include:
• Whether or not the device is board mounted
• Trace size, composition, thickness, and geometry
• Orientation of the device (horizontal or vertical)
• Volume of the ambient air surrounding the device under test and airflow
• Whether other surfaces are in close proximity to the device being tested
The device power dissipation, P, is a function of the charge rate and the voltage drop across the internal power
FET. It can be calculated from the following equation:
P = [Vin × lin - Vbat × Ibat]
Due to the charge profile of Li-xx batteries, the maximum power dissipation is typically seen at the beginning of
the charge cycle when the battery voltage is at its lowest. (See Figure 9.)
28 Submit Documentation Feedback Copyright © 2004–2010, Texas Instruments Incorporated
Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
www.ti.com
SLUS606O –JUNE 2004–REVISED MARCH 2010
PCB LAYOUT CONSIDERATION
It is important to pay special attention to the PCB layout. The following provides some guidelines:
• To obtain optimal performance, the power input capacitors, connected from input to PGND, should be placed
as close as possible to the bqSWITCHER. The output inductor should be placed directly above the IC and the
output capacitor connected between the inductor and PGND of the IC. The intent is to minimize the current
path loop area from the OUT pin through the LC filter and back to the GND pin. The sense resistor should be
adjacent to the junction of the inductor and output capacitor. Route the sense leads connected across the
R(SNS) back to the IC, close to each other (minimize loop area) or on top of each other on adjacent layers (do
not route the sense leads through a high-current path). Use an optional capacitor downstream from the sense
resistor if long (inductive) battery leads are used.
• Place all small-signal components (CTTC, RSET1/2 and TS) close to their respective IC pin (do not place
components such that routing interrupts power stage currents). All small control signals should be routed
away from the high current paths.
• The PCB should have a ground plane (return) connected directly to the return of all components through vias
(3 vias per capacitor for power-stage capacitors, 3 vias for the IC PGND, 1 via per capacitor for small-signal
components). A star ground design approach is typically used to keep circuit block currents isolated
(high-power/low-power small-signal) which reduces noise-coupling and ground-bounce issues. A single
ground plane for this design gives good results. With this small layout and a single ground plane, there is not
a ground-bounce issue, and having the components segregated minimizes coupling between signals.
• The high-current charge paths into IN and from the OUT pins must be sized appropriately for the maximum
charge current in order to avoid voltage drops in these traces. The PGND pins should be connected to the
ground plane to return current through the internal low-side FET. The thermal vias in the IC PowerPAD™
provide the return-path connection.
• The bqSWITCHER is packaged in a thermally enhanced MLP package. The package includes a thermal pad
to provide an effective thermal contact between the IC and the PCB. Full PCB design guidelines for this
package are provided in the application report entitled: QFN/SON PCB Attachment (SLUA271). Six 10-13 mil
vias are a minimum number of recommended vias, placed in the IC's power pad, connecting it to a ground
thermal plane on the opposite side of the PWB. This plane must be at the same potential as VSS and PGND
of this IC.
• See user guide SLUU200 for an example of good layout.
WAVEFORMS: All waveforms are taken at Lout (IC Out pin). VIN = 7.6 V and the battery was set to 2.6 V, 3.5 V,
and 4.2 V for the three waveforms. When the top switch of the converter is on, the waveform is at ~7.5 V, and
when off, the waveform is near ground. Note that the ringing on the switching edges is small. This is due to a
tight layout (minimized loop areas), a shielded inductor (closed core), and using a low-inductive scope ground
lead (i.e., short with minimum loop) .
Copyright © 2004–2010, Texas Instruments Incorporated Submit Documentation Feedback 29
Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
bq24100, bq24103, bq24103A
bq24104, bq24105, bq24108, bq24109
bq24113, bq24113A, bq24115
SLUS606O –JUNE 2004–REVISED MARCH 2010
www.ti.com
Precharge: The current is low in precharge; so, the bottom synchronous FET turns off after its minimum on-time
which explains the step between Ⅹ0 V and -0.5 V. When the bottom FET and top FET are off, the current
conducts through the body diode of the bottom FET which results in a diode drop below the ground potential.
The initial negative spike is the delay turning on the bottom FET, which is to prevent shoot-through current as the
top FET is turning off.
Fast Charge: This is captured during the constant-current phase. The two negative spikes are the result of the
short delay when switching between the top and bottom FETs. The break-before-make action prevents current
shoot-through and results in a body diode drop below ground potential during the break time.
Charge during Voltage Regulation and Approaching Termination: Note that this waveform is similar to the
precharge waveform. The difference is that the battery voltage is higher so the duty cycle is slightly higher. The
bottom FET stays on longer because there is more of a current load than during precharge; it takes longer for the
inductor current to ramp down to the current threshold where the synchronous FET is disabled.
30 Submit Documentation Feedback Copyright © 2004–2010, Texas Instruments Incorporated
Product Folder Link(s): bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A
bq24115
PACKAGE OPTION ADDENDUM
www.ti.com 27-Jul-2013
Addendum-Page 1
PACKAGING INFORMATION
Orderable Device Status
(1)
Package Type Package
Drawing Pins Package
Qty Eco Plan
(2)
Lead/Ball Finish MSL Peak Temp
(3)
Op Temp (°C) Device Marking
(4/5)
Samples
BQ24100RHL PREVIEW VQFN RHL 20 TBD Call TI Call TI -40 to 85
BQ24100RHLR ACTIVE VQFN RHL 20 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 CIA
BQ24103ARHLR ACTIVE VQFN RHL 20 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 CKO
BQ24103ARHLRG4 ACTIVE VQFN RHL 20 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 CKO
BQ24103ARHLT ACTIVE VQFN RHL 20 250 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 CKO
BQ24103ARHLTG4 ACTIVE VQFN RHL 20 250 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 CKO
BQ24103RHLR ACTIVE VQFN RHL 20 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 CID
BQ24104RHLR ACTIVE VQFN RHL 20 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 NXW
BQ24104RHLT ACTIVE VQFN RHL 20 250 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 NXW
BQ24105RHLR ACTIVE VQFN RHL 20 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 CIF
BQ24105RHLRG4 ACTIVE VQFN RHL 20 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 CIF
BQ24108RHLR ACTIVE VQFN RHL 20 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 CIU
BQ24108RHLRG4 ACTIVE VQFN RHL 20 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 CIU
BQ24109RHLR ACTIVE VQFN RHL 20 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 CDY
BQ24109RHLRG4 ACTIVE VQFN RHL 20 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 CDY
BQ24109RHLT ACTIVE VQFN RHL 20 250 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 CDY
BQ24109RHLTG4 ACTIVE VQFN RHL 20 250 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 CDY
PACKAGE OPTION ADDENDUM
www.ti.com 27-Jul-2013
Addendum-Page 2
Orderable Device Status
(1)
Package Type Package
Drawing Pins Package
Qty Eco Plan
(2)
Lead/Ball Finish MSL Peak Temp
(3)
Op Temp (°C) Device Marking
(4/5)
Samples
BQ24113ARHLR ACTIVE VQFN RHL 20 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 CKF
BQ24113ARHLRG4 ACTIVE VQFN RHL 20 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 CKF
BQ24113ARHLT ACTIVE VQFN RHL 20 250 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 CKF
BQ24113ARHLTG4 ACTIVE VQFN RHL 20 250 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 CKF
BQ24113RHLR ACTIVE VQFN RHL 20 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 CIJ
BQ24113RHLRG4 ACTIVE VQFN RHL 20 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 CIJ
BQ24115RHLR ACTIVE VQFN RHL 20 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 CIL
BQ24115RHLRG4 ACTIVE VQFN RHL 20 3000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 85 CIL
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
PACKAGE OPTION ADDENDUM
www.ti.com 27-Jul-2013
Addendum-Page 3
(5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
OTHER QUALIFIED VERSIONS OF BQ24105 :
•Automotive: BQ24105-Q1
NOTE: Qualified Version Definitions:
•Automotive - Q100 devices qualified for high-reliability automotive applications targeting zero defects
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device Package
Type Package
Drawing Pins SPQ Reel
Diameter
(mm)
Reel
Width
W1 (mm)
A0
(mm) B0
(mm) K0
(mm) P1
(mm) W
(mm) Pin1
Quadrant
BQ24100RHLR VQFN RHL 20 3000 330.0 12.4 3.8 4.8 1.6 8.0 12.0 Q1
BQ24103ARHLR VQFN RHL 20 3000 330.0 12.4 3.8 4.8 1.6 8.0 12.0 Q1
BQ24103ARHLT VQFN RHL 20 250 180.0 12.4 3.8 4.8 1.6 8.0 12.0 Q1
BQ24103RHLR VQFN RHL 20 3000 330.0 12.4 3.8 4.8 1.6 8.0 12.0 Q1
BQ24104RHLR VQFN RHL 20 3000 330.0 12.4 3.8 4.8 1.6 8.0 12.0 Q1
BQ24104RHLT VQFN RHL 20 250 180.0 12.4 3.8 4.8 1.6 8.0 12.0 Q1
BQ24105RHLR VQFN RHL 20 3000 330.0 12.4 3.8 4.8 1.6 8.0 12.0 Q1
BQ24105RHLR VQFN RHL 20 3000 330.0 12.4 3.8 4.8 1.3 8.0 12.0 Q1
BQ24108RHLR VQFN RHL 20 3000 330.0 12.4 3.8 4.8 1.6 8.0 12.0 Q1
BQ24109RHLR VQFN RHL 20 3000 330.0 12.4 3.8 4.8 1.6 8.0 12.0 Q1
BQ24109RHLR VQFN RHL 20 3000 330.0 12.4 3.8 4.8 1.3 8.0 12.0 Q1
BQ24109RHLT VQFN RHL 20 250 180.0 12.4 3.8 4.8 1.3 8.0 12.0 Q1
BQ24113ARHLR VQFN RHL 20 3000 330.0 12.4 3.8 4.8 1.6 8.0 12.0 Q1
BQ24113ARHLT VQFN RHL 20 250 180.0 12.4 3.8 4.8 1.6 8.0 12.0 Q1
BQ24113RHLR VQFN RHL 20 3000 330.0 12.4 3.8 4.8 1.6 8.0 12.0 Q1
BQ24115RHLR VQFN RHL 20 3000 330.0 12.4 3.8 4.8 1.6 8.0 12.0 Q1
PACKAGE MATERIALS INFORMATION
www.ti.com 19-Nov-2013
Pack Materials-Page 1
*All dimensions are nominal
Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)
BQ24100RHLR VQFN RHL 20 3000 367.0 367.0 35.0
BQ24103ARHLR VQFN RHL 20 3000 367.0 367.0 35.0
BQ24103ARHLT VQFN RHL 20 250 210.0 185.0 35.0
BQ24103RHLR VQFN RHL 20 3000 367.0 367.0 35.0
BQ24104RHLR VQFN RHL 20 3000 367.0 367.0 35.0
BQ24104RHLT VQFN RHL 20 250 210.0 185.0 35.0
BQ24105RHLR VQFN RHL 20 3000 367.0 367.0 35.0
BQ24105RHLR VQFN RHL 20 3000 370.0 355.0 55.0
BQ24108RHLR VQFN RHL 20 3000 367.0 367.0 35.0
BQ24109RHLR VQFN RHL 20 3000 367.0 367.0 35.0
BQ24109RHLR VQFN RHL 20 3000 370.0 355.0 55.0
BQ24109RHLT VQFN RHL 20 250 195.0 200.0 45.0
BQ24113ARHLR VQFN RHL 20 3000 367.0 367.0 35.0
BQ24113ARHLT VQFN RHL 20 250 210.0 185.0 35.0
BQ24113RHLR VQFN RHL 20 3000 367.0 367.0 35.0
BQ24115RHLR VQFN RHL 20 3000 367.0 367.0 35.0
PACKAGE MATERIALS INFORMATION
www.ti.com 19-Nov-2013
Pack Materials-Page 2
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