1
FEATURES
DESCRIPTION
APPLICATIONS
Power
Controller
+VO
-VO
+VI
-VI
Power
Controller
+VO
COM
+VI
-VI
-VO
DCH01 Series
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........................................................................................................................................... SBVS073H – NOVEMBER 2006 – REVISED JANUARY 2009
MINIATURE, 1-W, 3-kV ISOLATEDUNREGULATED DC/DC CONVERTERS
2
•Up To 78% Efficiency•3-kVDC Isolation
The DCH01 series is a family of miniature, 1-W, 3-kVisolated DC/DC converters. Featured in an industry•UL60950 Certified Product
standard SIP-7 footprint, the DCH01 series requires•Industry Standard Footprint
minimal external components, reducing board space.•JEDEC SIP-7 Package
The DCH01 series provides both single and dualsplit-supply outputs.
The use of a highly integrated package design results•Point-of-Use Power Conversion
in highly reliable products with high power densities.•Ground Loop Elimination
High performance and small size makes the DCH01suitable for a wide range of applications including•Data Acquisition
signal chain applications and ground loop elimination.•Industrial Control and Instrumentation•Test Equipment™
Single Output Block Diagram
Dual Output Block Diagram
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of TexasInstruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2Test Equipment is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2006 – 2009, Texas Instruments IncorporatedProducts conform to specifications per the terms of the TexasInstruments standard warranty. Production processing does notnecessarily include testing of all parameters.
ORDERING INFORMATION
ABSOLUTE MAXIMUM RATINGS
DCH01 Series
SBVS073H – NOVEMBER 2006 – REVISED JANUARY 2009 ...........................................................................................................................................
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This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled withappropriate 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 moresusceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
For the most current package and ordering information, see the Package Option Addendum at the end of thisdata sheet, or see the TI website at www.ti.com.
Part Numbering Scheme
INPUT OUTPUT PIN TRANSPORTPRODUCT LINE POWER VOLTAGE VOLTAGE SINGLE/DUAL PACKAGE CONFIG MEDIA
DCH 01 05 05 S N 7
H = 3 kV, unregulated output 01 = 1 W 05 = 5 V 05 = 5 V S = Single N = SIP Thru-hole 7 = SIP-7 Blank = Tray12 =12 V D = Dual T = Tape & Reel15 = 15 V
DCH01 Products
OUTPUT OUTPUT ISOLATIONINPUT VOLTAGE VOLTAGE CURRENT OUTPUT POWER VOLTAGEMODEL (V) (V) (mA) (W) (kVDC) PACKAGE-LEAD
DCH010505S 5 ± 10% 5 200 1 3 SIP-7DCH010512S 5 ± 10% 12 83 1 3 SIP-7DCH010515S 5 ± 10% 15 67 1 3 SIP-7DCH010505D 5 ± 10% ± 5 ± 100 1 3 SIP-7DCH010512D 5 ± 10% ± 12 ± 42 1 3 SIP-7DCH010515D 5 ± 10% ± 15 ± 33 1 3 SIP-7
over operating free-air temperature range (unless otherwise noted)
(1)
DCH01 SERIES UNIT
Input Voltage 5V input models 7 VWave soldering
Surface temperature of module body or pins for 5 seconds maximum 260 ° Ctemperature
Storage temperature range – 55 to +125 ° C
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratingsonly, and functional operation of the device at these or any other conditions beyond those indicated is not implied. Exposure to absolutemaximum rated conditions for extended periods may affect device reliability.
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Product Folder Link(s): DCH01 Series
ELECTRICAL CHARACTERISTICS
ELECTRICAL CHARACTERISTICS PER DEVICE
DCH01 Series
www.ti.com
........................................................................................................................................... SBVS073H – NOVEMBER 2006 – REVISED JANUARY 2009
At T
A
= +25 ° C, V
I
= 5V unless otherwise noted.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
OUTPUT
Power 100% full load 1
(1)
W
Over current duration
(1)
1 sec
INPUT
Voltage range on V
I
– 10 10 %
ISOLATION
Voltage 100% tested for 1 second 3.5 kVDC
LINE
Regulation 1% change in V
I
1%
SWITCHING
Switching frequency (f
SW
) 70 kHz
RELIABILITY
Single Output 18Calculated Per Telcordia SR-332; 50% stress; T
A
= +40C FITSDual Output 22
TEMPERATURE RANGE
Operating – 40 +85 ° C
(1) This converter does not have continuous over-current protection.
At T
A
= +25 ° C, V
I
= 5V unless otherwise noted.
NO LOADINPUT OUTPUT LOAD OUTPUT INPUT BARRIERVOLTAGE VOLTAGE REGULATION RIPPLE
(1)
CURRENT EFFICIENCY CAPACITANCE(V) (V) (%) (mV
PP
) (mA) (%) (pF)
V
I
V
NOM
I
Q
C
ISO
10% TO 100%NOMINAL 100% LOAD
(2)
LOAD
(3)
100% LOAD
(2)
0% LOAD 100% LOAD
(2)
PRODUCT TYP TYP TYP TYP TYP TYP TYP
DCH010505S 5 5.1 10 35 60 72 3
DCH010505D 5 ± 5.2 9 20 60 72 3
DCH010512S 5 12.4 6 18 65 74 4
DCH010512D 5 ± 12.5 5 19 65 75 4
DCH010515S 5 15.2 6 31 65 75 3
DCH010515D 5 ± 15.3 5 22 65 76 3
(1) 20MHz bandwidth.(2) 100% load current = 1W/V
NOM
typ.(3) Load Regulation = (V
O
at 10% load - V
O
at 100% load) / V
O
at 100% load.
Copyright © 2006 – 2009, Texas Instruments Incorporated Submit Documentation Feedback 3
Product Folder Link(s): DCH01 Series
DEVICE INFORMATION
1 2 5 7
DCH01
1 2 5 6 7
DCH01
DCH01 Series
SBVS073H – NOVEMBER 2006 – REVISED JANUARY 2009 ...........................................................................................................................................
www.ti.com
EDJ PACKAGE
EDJ PACKAGESIP-7 (Single)
SIP-7 (Dual)(Top View)
(Top View)
Pin Description (Single)
Pin Descriptions (Dual)TERMINAL
TERMINAL
NAME NO. DESCRIPTION
NAME NO. DESCRIPTION+V
I
1 Voltage input
+V
I
1 Voltage input– V
I
2 Input side common
– V
I
2 Input side common– V
O
5 – Voltage out
– V
O
5 – Voltage out+V
O
7 +Voltage out
COM 6 Output side common
+V
O
7 +Voltage out
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Product Folder Link(s): DCH01 Series
TYPICAL CHARACTERISTICS
Efficiency(%)
I ,LoadCurrent(mA)
O
80
70
60
50
40
30
20
10
0
0 40 20080 120 160
Efficiency(%)
Output1LoadCurrent(mA)
80
70
60
50
40
30
20
10
0
0 20 10040 60 80
Output2LoadCurrent
100mA
50mA
10mA
V ,OutputVoltage(V)
O
I ,LoadCurrent(mA)
O
5.7
5.6
5.5
5.4
5.3
5.2
5.1
5.0
0 40 20080 120 160
V ,OutputVoltage(V)
O
Output1LoadCurrent(mA)
5.8
5.7
5.6
5.5
5.4
5.3
5.2
5.1
0 20 10040 60 80
Output2LoadCurrent
100mA
50mA
10mA
OutputVoltageRipple(mV )
PP
I ,LoadCurrent(mA)
O
50
40
30
20
10
0
0 40 20080 120 160
OutputVoltageRipple(mV )
PP
Output1LoadCurrent(mA)
30
25
20
15
10
5
0
0 20 10040 60 80
Output2LoadCurrent
100mA
50mA
10mA
DCH01 Series
www.ti.com
........................................................................................................................................... SBVS073H – NOVEMBER 2006 – REVISED JANUARY 2009
At T
A
= +25 ° C, and V
IN
= 5V unless otherwise noted.
DCH010505S DCH010505DEFFICIENCY EFFICIENCY
Figure 1. Figure 2.
DCH010505S DCH010505DLOAD REGULATION LOAD REGULATION
Figure 3. Figure 4.
DCH010505S DCH010505DRIPPLE VOLTAGE RIPPLE VOLTAGE
Figure 5. Figure 6.
Copyright © 2006 – 2009, Texas Instruments Incorporated Submit Documentation Feedback 5
Product Folder Link(s): DCH01 Series
Efficiency(%)
I ,LoadCurrent(mA)
O
80
70
60
50
40
30
20
10
0
0 15 9030 45 60 75
Efficiency(%)
Output1LoadCurrent(mA)
80
70
60
50
40
30
20
10
0
0 10 155 4520 25 30 35 40
Output2LoadCurrent
42mA
21mA
4mA
V ,OutputVoltage(V)
O
I ,LoadCurrent(mA)
O
13.2
13.0
12.8
12.6
12.4
12.2
0 15 9030 45 60 75
V ,OutputVoltage(V)
O
Output1LoadCurrent(mA)
13.2
13.1
13.0
12.9
12.8
12.7
12.6
12.5
12.4
12.3
0 10 155 4520 25 30 35 40
Output2LoadCurrent
42mA
21mA
4mA
OutputVoltageRipple(mV )
PP
I ,LoadCurrent(mA)
O
50
40
30
20
10
0 15 9030 45 60 75
OutputVoltageRipple(mV )
PP
Output1LoadCurrent(mA)
20
16
12
8
4
0
0 10 155 4520 25 30 35 40
Output2LoadCurrent
42mA
21mA
4mA
DCH01 Series
SBVS073H – NOVEMBER 2006 – REVISED JANUARY 2009 ...........................................................................................................................................
www.ti.com
TYPICAL CHARACTERISTICS (continued)At T
A
= +25 ° C, and V
IN
= 5V unless otherwise noted.
DCH010512S DCH010512DEFFICIENCY EFFICIENCY
Figure 7. Figure 8.
DCH010512S DCH010512DLOAD REGULATION LOAD REGULATION
Figure 9. Figure 10.
DCH010512S DCH010512DRIPPLE VOLTAGE RIPPLE VOLTAGE
Figure 11. Figure 12.
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Product Folder Link(s): DCH01 Series
Efficiency(%)
Output1LoadCurrent(mA)
80
70
60
50
40
30
20
10
0
0 20 30 3515105 25
Output2LoadCurrent
33mA
17mA
3mA
V,OutputVoltage(V)
O
I ,LoadCurrent(mA)
O
16.5
16.2
15.9
15.6
15.3
15.0
0 15 7530 45 60
V ,OutputVoltage(V)
O
Output1LoadCurrent(mA)
16.1
16.0
15.9
15.8
15.7
15.6
15.5
15.4
15.3
15.2
15.1
0 20 30 3515105 25
Output2LoadCurrent
33mA
17mA
3mA
OutputVoltageRipple(mV )
PP
I ,LoadCurrent(mA)
O
50
45
40
35
30
25
20
0 15 7530 45 60
DCH01 Series
www.ti.com
........................................................................................................................................... SBVS073H – NOVEMBER 2006 – REVISED JANUARY 2009
TYPICAL CHARACTERISTICS (continued)At T
A
= +25 ° C, and V
IN
= 5V unless otherwise noted.
DCH010515S DCH010515DEFFICIENCY EFFICIENCY
Figure 13. Figure 14.
DCH010515S DCH010515DLOAD REGULATION LOAD REGULATION
Figure 15. Figure 16.
DCH010515S DCH010515DRIPPLE VOLTAGE RIPPLE VOLTAGE
Figure 17. Figure 18.
Copyright © 2006 – 2009, Texas Instruments Incorporated Submit Documentation Feedback 7
Product Folder Link(s): DCH01 Series
AmbientT
emperature( C)°
LoadCurrent(%)
90
80
70
60
50
40
30
20
0 20 10040 60 80
NaturalConvection
DCH01 Series
SBVS073H – NOVEMBER 2006 – REVISED JANUARY 2009 ...........................................................................................................................................
www.ti.com
TYPICAL CHARACTERISTICS (continued)At T
A
= +25 ° C, and V
IN
= 5V unless otherwise noted.
SAFE OPERATING AREA(All DCH0105 Products)
Figure 19.
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Product Folder Link(s): DCH01 Series
FUNCTIONAL DESCRIPTION
ISOLATION VOLTAGE
Repeated High-Voltage Isolation Testing
APPLICATION INFORMATION
OPTIONAL INPUT/OUTPUT FILTERS
INPUT/OUTPUT CAPACITORS
+VIN
DCH01xxxxSN7
-VIN
+VOUT
COM
2.2 mF
Ceramic
1mH to 5 mH
4.7 mF
Ceramic
+VIN
-VIN
4.7 mF
1mH to 5 mH
1mF
UDG-08077
DCH01 Series
www.ti.com
........................................................................................................................................... SBVS073H – NOVEMBER 2006 – REVISED JANUARY 2009
The DCH01 series of DC/DC converters are 100% production tested at 3.5 kVDC for 1 second. The isolation testvoltage represents an operational isolation to transient voltages and should not be relied upon for safetyisolation.
The continuous voltage that can be applied across the DCH01 during normal operation must be < 60 VDC, withinSELV limits.
Repeated high-voltage isolation testing can degrade the isolation capability of the DCH01.
DCH01 power modules include internal input and output ceramic capacitors in all their designs. However, someapplications require much lower levels of either input reflected or output ripple/noise. This application notedescribes various filters and design techniques found to be successful in reducing both input and outputripple/noise.
The easiest way to reduce output ripple and noise is to add one or more ceramic capacitors each with a value of4.7- µF or greater. Ceramic capacitors should be placed close to the output power terminals. A single 4.7- µ Fceramic capacitor reduces the output ripple/noise by 10% to 30%.
Switching regulators draw current from the input line in pulses at their operating frequency. The amount ofreflected (input) ripple/noise generated is directly proportional to the equivalent source impedance of the powersource including the impedance of any input lines. The addition of a 4.7- µF ceramic capacitor, near the inputpower pins, reduces reflected conducted ripple/noise by 30% to 50%.
The recommended capacitve load on the output of the DCH01 is 100 µF.
Figure 20. DCH01 Series πFilter
Copyright © 2006 – 2009, Texas Instruments Incorporated Submit Documentation Feedback 9
Product Folder Link(s): DCH01 Series
+VIN
DCH01xxxxDN7
-VIN
+VOUT
COM
2.2 mF
Ceramic
1mH to 5 mH
4.7 mF
Ceramic
+VIN
-VIN
4.7 mF
1mH to 5 mH
1mF
-VOUT
4.7 mF1 mF
1mH to 5 mH
+VOUT
-VOUT
UDG-08076
πFILTERS
DCH01 START-UP
IIN 100mA/div
VO5V/div
VIN 5V/div
DCH01 Series
SBVS073H – NOVEMBER 2006 – REVISED JANUARY 2009 ...........................................................................................................................................
www.ti.com
Figure 21. DCH01 Series πFilter (5 V at 1 W)
If a further reduction in ripple/noise level is required for an application, higher order filters must be used. A π(pi)filter, employing a ferrite bead inductor in series with the input or output terminals of the regulator reduces theripple/noise by at least 20 db (see Figure 20 and Figure 21 ). Ceramic capacitors are required for the inductor tobe effective in reduction of ripple and noise.
These inductors plus ceramic capacitors form an excellent filter because of the rejection at the switchingfrequency. The placement of this filter is critical. It must be located as close as possible to the input or outputpins to be efffective. The ferrite bead is small (12,5 mm x 3 mm), easy to use, low cost, and has low dcresistance. Fair-Rite manufactures a surface-mount bead (part number 2773021447) or through hole (partnumber 2673000701) rated to 5 A. Inductors with a value between 1 µH and 5 µH can be used in place of theferrite bead inductor.
Start-up waveforms.
Figure 22. Startup Waveforms
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Product Folder Link(s): DCH01 Series
CONNECTING THE DCH01 IN SERIES
+VIN
DCH01xxxxDN7
-VIN
+VOUT
COM
+VIN
-VIN -VOUT
+10 V
GND
+VOUT
UDG-08075
CONNECTING THE DCH01 IN PARALLEL
+VIN
DCH01xxxxSN7
-VIN
+VOUT
COM
+VIN
-VIN
+VOUT
+VIN
DCH01xxxxSN7
-VIN
+VOUT
COM
+VIN
-VIN
UDG-08073
DCH01 Series
www.ti.com
........................................................................................................................................... SBVS073H – NOVEMBER 2006 – REVISED JANUARY 2009
It is possible to connect the outputs of multiple DCH01s in series to provide non-standard voltage rails. Theoutputs of dual output DCH01 versions can also be connected in series to provide 2 × the magnitude of V
O
, asshown in Figure 23 . For example, a dual 5-V DCH01 could be connected to provide a 10-V rail.
Figure 23. Connecting Dual Outputs in Series
If the output power from one DCH01 is not sufficient, it is possible to parallel the outputs of multiple DCH01s, asshown in Figure 24 .
Figure 24. Connecting Multiple DCH01s in Parallel
Copyright © 2006 – 2009, Texas Instruments Incorporated Submit Documentation Feedback 11
Product Folder Link(s): DCH01 Series
PACKAGING INFORMATION
Orderable Device Status (1) Package
Type Package
Drawing Pins Package
Qty Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
DCH010505DN7 ACTIVE SIP MOD
ULE EDJ 5 70 Pb-Free
(RoHS) Call TI N / A for Pkg Type
DCH010505SN7 ACTIVE SIP MOD
ULE EDJ 4 70 Pb-Free
(RoHS) Call TI N / A for Pkg Type
DCH010512DN7 ACTIVE SIP MOD
ULE EDJ 5 70 Pb-Free
(RoHS) Call TI N / A for Pkg Type
DCH010512SN7 ACTIVE SIP MOD
ULE EDJ 4 70 Pb-Free
(RoHS) Call TI N / A for Pkg Type
DCH010515DN7 ACTIVE SIP MOD
ULE EDJ 5 70 Pb-Free
(RoHS) Call TI N / A for Pkg Type
DCH010515SN7 ACTIVE SIP MOD
ULE EDJ 4 70 Pb-Free
(RoHS) Call TI N / A for Pkg Type
(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.
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
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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.
PACKAGE OPTION ADDENDUM
www.ti.com 6-Jan-2009
Addendum-Page 1
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