NTA Series www.murata-ps.com Isolated 1W Dual Output SM DC-DC Converters SELECTION GUIDE 1 Order Code FEATURES RoHS compliant Efficiency up to 78% Wide temperature performance at full 1 Watt load, -40C to 85C UL 94V-0 Package material Footprint over pins 1.64cm2 Lead frame technology Nominal Input Voltage V NTA0303MC NTA0305MC NTA0309MC NTA0312MC NTA0315MC NTA0503MC NTA0505MC NTA0505MEC NTA0509MC NTA0512MC NTA0515MC NTA1205MC NTA1209MC NTA1212MC NTA1215MC V mA Input Current at Rated Load mA 3.3 5 9 12 15 3.3 5 5 9 12 15 5 9 12 15 152 100 55 42 33 152 100 100 55 42 33 100 55 42 33 402 388 405 390 392 259 290 251 267 260 256 121 113 111 110 Output Voltage 3.3 3.3 3.3 3.3 3.3 5 5 5 5 5 5 12 12 12 12 Output Current Efficiency Isolation MTTF2 Capacitance % pF kHrs 75 78 75 77 77 77 69 80 75 77 78 69 74 75 76 29 30 34 40 42 31 33 42 38 44 43 50 72 89 100 1005 399 827 375 206 964 1697 367 682 343 188 559 375 243 154 INPUT CHARACTERISTICS 3.3V, 5V & 12V Input Parameter Conditions Min. Typ. Max. Internal SMD construction Voltage range Continuous operation, 3V input types Continuous operation, 5V input types Continuous operation, 12V input types 2.97 4.5 10.8 Toroidal magnetics Reflected ripple current 3.3 5 12 41 3.63 5.5 13.2 50 mA p-p Typ. Max. Units 3.3V, 5V, 9V, 12V & 15V Output 1kVDC Isolation `Hi Pot Test' MTTF up to 2.1 Million hours Power density 1.36W/cm 3 No heatsink required Parameter Conditions Min. Isolation voltage Resistance Flash tested for 1 second Viso= 1000VDC 1000 10 GENERAL CHARACTERISTICS Multi-layer ceramic capacitors Parameter Conditions Switching frequency 0312MC, 0315MC 0303MC, 0305MC, 0503MC, 0505MEC All other variants The NTA series of miniature surface mounted DC-DC Converters employ leadframe technology and transfer moulding techniques to bring all of the benefits of IC style packaging to hybrid circuitry. Co-planarity of the lead positions is based upon IEC 191-6:1990. The devices are suitable for all applications where high volume production is envisaged. For full details go to www.murata-ps.com/rohs V ISOLATION CHARACTERISTICS Custom solutions available PRODUCT OVERVIEW Units Min. VDC G Typ. 100 110 115 Max. Units kHz ABSOLUTE MAXIMUM RATINGS Internal power dissipation Input voltage VIN, NTA03 types Input voltage VIN, NTA05 types Input voltage VIN, NTA12 types 700mW 5.5V 7V 15V 1. If components are required in tape and reel format suffix order code with -R, e.g. NTA0505MC-R. 2. Calculated using MIL-HDBK-217F with nominal input voltage at full load. All specifications typical at TA=25C, nominal input voltage and rated output current unless otherwise specified. www.murata-ps.com/support KDC_NTA.I08 Page 1 of 6 NTA Series Isolated 1W Dual Output SM DC-DC Converters OUTPUT CHARACTERISTICS Parameter Conditions Rated Power Voltage Set Point Accuracy Line regulation TA=-40C to 85C See tolerance envelope High VIN to low VIN 10% load to rated load, 0303MC & 0503MC 10% load to rated load, 5V output types 10% load to rated load, 0309MC 10% load to rated load, 0509MC & 1209MC 10% load to rated load, 0312MC & 0315MC 10% load to rated load, 0512MC & 1212MC 10% load to rated load, 0515MC & 1215MC BW=DC to 20MHz, 3.3V output types, NTA0305MC & NTA0505MEC BW=DC to 20MHz, all other 5V output types BW=DC to 20MHz, 9V output types BW=DC to 20MHz, 12V output types BW=DC to 20MHz, 15V output types Load Regulation1 Ripple and Noise Min. Typ. Max. Units 1.0 W 1.0 10 10 9.0 6.5 11 6.0 6.0 40 50 35 50 65 1.2 15 12 10 8.0 14 8.5 7.0 80 100 80 110 110 %/% Typ. Max. % mV p-p TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Specification Storage All output types -40 -55 Case temperature rise above ambient Cooling 0305MC, 0505MEC, 0312MC, 0315MC 0303MC, 0309MC, 0503MC 0505MC, 1205MC All other variants Free air convection Units 85 125 19 25 46 35 C TECHNICAL NOTES ISOLATION VOLTAGE `Hi Pot Test', `Flash Tested', `Withstand Voltage', `Proof Voltage', `Dielectric Withstand Voltage' & `Isolation Test Voltage' are all terms that relate to the same thing, a test voltage, applied for a specified time, across a component designed to provide electrical isolation, to verify the integrity of that isolation. Murata Power Solutions NTA series of DC-DC converters are all 100% production tested at their stated isolation voltage. This is 1kVDC for 1 second. A question commonly asked is, "What is the continuous voltage that can be applied across the part in normal operation?" For a part holding no specific agency approvals, such as the NTA series, both input and output should normally be maintained within SELV limits i.e. less than 42.4V peak, or 60VDC. The isolation test voltage represents a measure of immunity to transient voltages and the part should never be used as an element of a safety isolation system. The part could be expected to function correctly with several hundred volts offset applied continuously across the isolation barrier; but then the circuitry on both sides of the barrier must be regarded as operating at an unsafe voltage and further isolation/insulation systems must form a barrier between these circuits and any user-accessible circuitry according to safety standard requirements. REPEATED HIGH-VOLTAGE ISOLATION TESTING It is well known that repeated high-voltage isolation testing of a barrier component can actually degrade isolation capability, to a lesser or greater degree depending on materials, construction and environment. The NTA series has toroidal isolation transformers, with no additional insulation between primary and secondary windings of enamelled wire. While parts can be expected to withstand several times the stated test voltage, the isolation capability does depend on the wire insulation. Any material, including this enamel (typically polyurethane) is susceptible to eventual chemical degradation when subject to very high applied voltages thus implying that the number of tests should be strictly limited. We therefore strongly advise against repeated high voltage isolation testing, but if it is absolutely required, that the voltage be reduced by 20% from specified test voltage. This consideration equally applies to agency recognised parts rated for better than functional isolation where the wire enamel insulation is always supplemented by a further insulation system of physical spacing or barriers. TEMPERATURE DERATING GRAPH Output Power (W) 1.5 1.0 0.5 0 -40 85C Safe Operating Area 100 50 0 Ambient Temperature (C) 150 1. 12V input types have typically 3% less load regulation change. www.murata-ps.com/support KDC_NTA.I08 Page 2 of 6 NTA Series Isolated 1W Dual Output SM DC-DC Converters RoHS COMPLIANCE, MSL AND PSL INFORMATION This series is compatible with RoHS soldering systems and is also backward compatible with Sn/Pb soldering systems. The NTA series has a process, moisture, and reflow sensitivity classification of MSL1 PSL R7F as defined in J-STD-020 and J-STD-075. This translates to: MSL1 = unlimited floor life, PSL R7F = Peak reflow temperature 245C with a limitation on the time above liquidus (217C) which for this series is 60sec max. The pin termination finish on this product series is Gold with a plating thickness of 0.05 microns minimum. For further information please visit www.murata-ps.com/rohs APPLICATION NOTES Minimum load The minimum load to meet datasheet specification is 10% of the full rated load across the specified input voltage range. Lower than 10% minimum loading will result in an increase in output voltage, which may rise to typically double the specified output voltage if the output load falls to less than 5%. Capacitive loading and start up Typical start up times for this series, with a typical input voltage rise time of 2.2s and output capacitance of 10F, are shown in the table below. The product series will start into a capacitance of 47F with an increased start time, however, the maximum recommended output capacitance is 10F. Typical Start-Up Wave Form NTA0303MC NTA0305MC NTA0309MC NTA0312MC NTA0315MC NTA0503MC NTA0505MC NTA0505MEC Start-up time s 1630 1359 3435 6590 25340 1599 2185 1395 NTA0509MC NTA0512MC NTA0515MC NTA1205MC NTA1209MC NTA1212MC NTA1215MC Start-up time s 6850 11560 15640 1154 4050 7995 11200 Ripple & Noise Characterisation Method Ripple and noise measurements are performed with the following test configuration. C1 1F X7R multilayer ceramic capacitor, voltage rating to be a minimum of 3 times the output voltage of the DC-DC converter 10F tantalum capacitor, voltage rating to be a minimum of 1.5 times the output voltage of the DC-DC converter with an ESR of less C2 than 100m at 100 kHz C3 100nF multilayer ceramic capacitor, general purpose R1 450 resistor, carbon film, 1% tolerance R2 50 BNC termination T1 3T of the coax cable through a ferrite toroid RLOAD Resistive load to the maximum power rating of the DC-DC converter. Connections should be made via twisted wires Measured values are multiplied by 10 to obtain the specified values. Differential Mode Noise Test Schematic DC/DC Converter OSCILLOSCOPE C1 C2 C3 + SUPPLY Input - + R1 T1 R2 Y INPUT Output - R LOAD www.murata-ps.com/support KDC_NTA.I08 Page 3 of 6 NTA Series Isolated 1W Dual Output SM DC-DC Converters APPLICATION NOTES (continued) Output Ripple Reduction By using the values of inductance and capacitance stated, the output ripple at the rated load is lowered to 5mV p-p max. Component selection Capacitor: It is required that the ESR (Equivalent Series Resistance) should be as low as possible, ceramic types are recommended. The voltage rating should be at least twice (except for 15V output), the rated output voltage of the DC-DC converter. Inductor: The rated current of the inductor should not be less than that of the output of the DC-DC converter. At the rated current, the DC resistance of the inductor should be such that the voltage drop across the inductor is <2% of the rated voltage of the DC-DC converter. The SRF (Self Resonant Frequency) should be >20MHz. +VOUT DC Power Source DC L C Load C Load OV -VOUT L NTA0303MC NTA0305MC NTA0309MC NTA0312MC NTA0315MC NTA0503MC NTA0505MC NTA0505MEC NTA0509MC NTA0512MC NTA0515MC NTA1205MC NTA1209MC NTA1212MC NTA1215MC L, H 10 22 22 22 22 10 10 10 22 22 22 10 22 22 22 Inductor SMD 82103C 82223C 82223C 82473C 82474C 82103C 82103C 82103C 82223C 82473C 82474C 82103C 82223C 82473C 82474C Through Hole 11R103C 11R223C 11R223C 11R473C 11R474C 11R103C 11R103C 11R103C 11R223C 11R473C 11R474C 11R103C 11R223C 11R473C 11R474C Capacitor C, F 4.7 2.2 2.2 1 1 4.7 4.7 4.7 2.2 1 1 4.7 2.2 1 1 www.murata-ps.com/support KDC_NTA.I08 Page 4 of 6 NTA Series Isolated 1W Dual Output SM DC-DC Converters TOLERANCE ENVELOPES All other types. Tolerance Envelope - 3.3V output types. +10% +9% oad Lin Output Voltage +1% VNOM e +5% VNOM +1% Output Voltage Typical L -7% -7% -15% 75 50 25 Output Load Current (%) 10 Typical L oad Line +2.5% -2.5% -7.5% 10 100 75 50 25 Output Load Current (%) 100 The voltage tolerance envelope shows typical load regulation characteristics for this product series. The tolerance envelope is the maximum output voltage variation due to changes in output loading. PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS PIN CONNECTIONS 15.24 [0.600] Pin 10.16 [0.400] DETAIL A 10 18 11.20 10.40 [ 0.441 0.409 ] 7.70 [0.303] NTAXXXXMC P XYYWW x10 PINS 1.50 [0.059] 1.20 [0.047] 9 1 2.54 [0.100] 0.2 [0.008] x10 PINS 0.75 0.030 S 0.45 0.018 [ 0.2 [0.008] 0.260 [(0.234) ] (6.35) 5.85 5.0 S ] (1.875 [0.074] MAX) 2.10 [0.083] 2.79 [0.110] MAX 6.60 (5.95) 0.50 [0.020] REFERENCE PLANE 0.230 ] [(0.250) 0.30 0.20 S x10 PINS 0.1 [0.004] S 0.25 0.10 0.004 ] [0.010 0.008 ] [0.012 -VIN 3 +VIN 5 NA 7 OV 9 -VOUT 10 NA 12 +VOUT 14 NA 16 NA 18 NA NA - Not available for electrical connection. SEATING PLANE DETAIL A All dimensions in mm (inches), Controlling dimension is mm. Tolerances (unless otherwise stated) 0.25 (0.010). Weight: 1.53g TUBE OUTLINE DIMENSIONS RECOMMENDED FOOTPRINT DETAILS 10.16 [0.400] x10 PLACES 2.00 [0.079] x10 PLACES 1.00 [0.039] MIN Function 1 0.600.15 (0.0240.006) 2.10 (0.083) 9.70 [0.382] 9.40 (0.370) 14.35 (0.565) 6.70 (0.264) 2.54 [0.100] Unless otherwise stated all dimensions in mm0.5 (inches 0.02). Tube length : 4752.0 (18.700.07). Tube Quantity : 25 www.murata-ps.com/support KDC_NTA.I08 Page 5 of 6 NTA Series Isolated 1W Dual Output SM DC-DC Converters TAPE & REEL SPECIFICATIONS REEL OUTLINE DIMENSIONS TAPE OUTLINE DIMENSIONS 330 (12.99) MAX 15.75 (0.62) 0.60 (0.02) MAX 100 O (3.94) MIN +0.10 (+0.004) -0.00 (-0.00) DIRECTION OF UNREELING 13.000.25 O (0.510.009) 2.00 (0.08) 30.40 (1.20 ) MAX +2.00 24.40 (0.96) (0.08) (AT HUB SECTION) -0.00 (0.00) O1.50 (0.06) 16.00 (0.63) 11.60 (0.46) 4.00 (0.16) 6.60 (0.26) 1.75(0.07) 11.50 (0.45) 24.000.30 (0.940.04) REEL PACKAGING DETAILS XYYWW NTA0505MC XYYWW NTA0505MC XYYWW NTA0505MC Product Orientation Pin 1, located nearest to carrier drive sprocket. TRAILER SECTION 160 (6.30) MIN GOODS ENCLOSURE SECTION CARRIER TAPE START 100 (3.94) MIN LEADER SECTION 400 (15.75) MIN Reel Quantity : 500 This product is subject to the following operating requirements and the Life and Safety Critical Application Sales Policy: Refer to: http://www.murata-ps.com/requirements/ Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. (c) 2018 Murata Power Solutions, Inc. www.murata-ps.com/support KDC_NTA.I08 Page 6 of 6 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Murata: NTA1205MC NTA0505MC NTA0515MC NTA1215MC NTA0303MC NTA0303MC-R NTA0305MC NTA0305MC-R NTA0309MC NTA0309MC-R NTA0312MC-R NTA0315MC-R NTA0503MC NTA0503MC-R NTA0505MC-R NTA0505MEC NTA0505MEC-R NTA0509MC NTA0509MC-R NTA0512MC-R NTA0515MC-R NTA1205MC-R NTA1209MC NTA1209MC-R NTA1212MC-R NTA1215MC-R NTA0512MC NTA1212MC NTA0312MC NTA0315MC