DC/DC Converter 9 to 18Vdc and 18 to 36Vdc and 36 to 75Vdc input, 20 Watt Output Power; 3.3 to 15Vdc Single Output and ±12Vdc to ±15Vdc Dual Output

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1 THN 20 Series Application Note DC/DC Converter 9 to 18Vdc and 18 to 36Vdc and 36 to 75Vdc input, 20 Watt Output Power; 3.3 to 15Vdc Single Output and ±12Vdc to ±15Vdc Dual Output Pending Applications Wireless Network Telecom/Datacom Industry Control System Measurement Semiconductor Equipment Features 20 watts maximum output power Ultra low quiescent current Single output current up to 4.5A Dual output current up to ±0.833A 2:1 wide input voltage range of 9-18Vdc, 18-36Vdc and 36-75Vdc Six-sided continuous shield Meet EN Class A without external Components Industry standard pin-out THN 15 series compatible High efficiency up to 91% Low profile: 1.0X1.0X0.39 inch (25.4X25.4X9.9mm) Fixed switching frequency RoHS directive compliant No minimum load Input to output isolation: 1500Vdc min. for 1 minute Input under-voltage protection Output over-voltage protection Over-current protection, auto-recovery Output short circuit protection, auto-recovery Remote ON/OFF control Adjustable output voltage Options Positive remote ON/OFF ON/OFF control function Trim function Heat sinks available for extended operation General Description THN 20 single output and dual output DC/DC converters provide up to 20 watts of output power in an industry standard package and footprint. These units are specifically designed to meet the power needs of low profile. All models feature with 2:1 wide input voltage of 9-18Vdc, 18-36Vdc and 36-75Vdc, comprehensively protected against over-current, over-voltage and input under-voltage protection conditions, and adjustable output voltage. Table of contents Absolute Maximum Rating P2 Output Voltage Adjustment P46 Output Specification P2 & P3 Short Circuitry Protection P47 Input Specification P3 & P4 Thermal Consideration P47 General Specification P4 Heat Sink Consideration P47 Environmental Specifications P5 Remote ON/OFF Control P48 EMC Characteristics P5 Mechanical Data P49 Characteristic Curves P6 P41 Recommended Pad Layout P50 Testing Configurations P42 Soldering Considerations P50 EMI Consideration P43 P45 Packaging Information P51 Input Source Impedance P45 Part Number Structure P51 Output Over Current Protection P45 Safety and Installation Instruction P52 Output Over Voltage Protection P45 MTBF and Reliability P52 Created by Traco Electronic AG Arp. Date: September 30 th, 2010 / Rev.: 1.1 / Page 1 / 52

2 Input Voltage Continuous Transient (1 sec max.) Absolute Maximum Rating Parameter Model Min Max Unit THN 20-12xx THN 20-24xx THN 20-48xx THN 20-12xx THN 20-24xx THN 20-48xx Operating Ambient Temperature (with derating)* All C Operating Case Temperature +105 C Storage Temperature All C * Test condition with vertical direction by natural convection (20LFM). Output Voltage Range (V in = V in nom ; Full Load; T A = 25 C) Output Specification Parameter Model Min Typ Max Unit THN 20-xx10 THN 20-xx11 THN 20-xx12 THN 20-xx13 THN 20-xx22 THN 20-xx ±11.88 ± ±12 ± ±12.12 ±15.15 Voltage Adjustability (See Page 46) All % Output Regulation Line (V in min to V in max at Full Load) Single Output Line (V in min to V in max at Full Load) Dual Output Load (0% to 100% of Full Load) Single Output Load (10% to 90% of Full Load) Single Output Load (0% to 100% of Full Load) Dual Output Load (10% to 90% of Full Load) Dual Output Output Ripple & Noise (See Page 42) Peak-to-Peak (20MHz bandwidth) (Measured with a 1μF M/C X7R and a 10μF T/C ) All THN 20-xx10 THN 20-xx11 THN 20-xx12 THN 20-xx13 THN 20-xx22 THN 20-xx Vdc Vdc % mv pk-pk Temperature Coefficient All %/ C Output Voltage Overshoot (V in min to V in max ; Full Load ; T A = 25 C) All 5 % V out Dynamic Load Response (V in min to V in max ; T A = 25 C) Load step change from 75% to 100% or 100 to 75% of Full Load Peak Deviation Setting Time (V out < 10% peak deviation) Output Current All All THN 20-xx10 THN 20-xx11 THN 20-xx12 THN 20-xx13 THN 20-xx22 THN 20-xx ±833 ±667 mv μs ma Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 2 / 52

3 Output Over Voltage Protection (Voltage Clamped) Output Specification (continue) Parameter Model Min Typ Max Unit THN 20-xx10 THN 20-xx11 THN 20-xx12 THN 20-xx13 THN 20-xx22 THN 20-xx ±13.5 ± ±19.6 ±20.5 Output Over Current Protection All 150 % FL. Output Short Circuit Protection All Hiccup, automatics recovery Vdc Input Specification Parameter Model Min Typ Max Unit Operating Input Voltage THN 20-12xx THN 20-24xx THN 20-48xx Vdc Input Standby Current (Typical value at V in = V in nom ; No Load) Under Voltage Lockout Turn-on Threshold Under Voltage Lockout Turn-off Threshold Input Reflected Ripple Current (See Page 42) (5 to 20MHz, 12μH source impedance) Start Up Time (V in = V in nom and constant resistive load) Power up Remote ON/OFF THN THN THN THN THN THN THN THN THN THN THN THN THN THN THN THN THN THN THN 20-12xx THN 20-24xx THN 20-48xx THN 20-12xx THN 20-24xx THN 20-48xx ma Vdc Vdc All 30 ma mk-pk All ms Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 3 / 52

4 Input Specification (continue) Parameter Model Min Typ Max Unit Remote ON/OFF Control (See Page 48) (The ON/OFF pin voltage is referenced to -V in ) Negative Logic DC-DC ON (Short) DC-DC OFF(Open) Positive Logic DC-DC ON (Open) DC-DC OFF(Short) Remote Off Input Current All 2.0 ma Input Current of Remote Control Pin All ma Efficiency (See Page 42) (V in = V in nom ; Full Load; T A = 25 C) Isolation Voltage (for 60 seconds) Input to Output Input / Output to Case All General Specification Parameter Model Min Typ Max Unit THN THN THN THN THN THN THN THN THN THN THN THN THN THN THN THN THN THN All Isolation Resistance All 1 GΩ Isolation Capacitance All 1500 pf Switching Frequency All 330 KHz Weight All 15 g MTBF (See Page 52) Bellcore TR-NWT , T C = 40 C MIL-HDBK-217F Case Material Base Material Potting Material Dimensions All Nickel-coated copper FR4 PCB Silicon (UL94-V0) 25.4 X 25.4 X 9.9mm (1.0 X 1.0 X 0.39 Inch) Vdc % Vdc hours Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 4 / 52

5 Thermal shock Vibration Relative humidity Environmental Specifications MIL-STD-810F MIL-STD-810F 5% to 95% RH EMC Characteristics EMI (See Page 43-45) EN55022 Class B ESD EN Air ±8KV Contact ±6KV Performance Criteria A Radiated immunity EN V/m Performance Criteria A Fast transient (Burst)* EN ±2KV Performance Criteria A Surge* EN ±2KV Performance Criteria A Conducted immunity EN V r.m.s Performance Criteria A * An external input filter capacitor is required if the module has to meet EN , EN We suggest to use following filter capacitor: Nippon Chemi-Con KY-series, 220μF/100V, ESR 48mΩ. Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 5 / 52

6 Characteristic Curves All test conditions are at 25 C. The figures are identical for THN Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow V in = V in nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, V in = V in nom Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 6 / 52

7 All test conditions are at 25 C. The figures are identical for THD Typical Output Ripple and Noise. Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; V in = V in nom Typical Input Start-Up and Output Rise Characteristic Using ON/OFF Voltage Start-Up and V out Rise Characteristic Conduction Emission of EN55022 Class A Conduction Emission of EN55022 Class B Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 7 / 52

8 All test conditions are at 25 C. The figures are identical for THN Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow V in = V in nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, V in = V in nom Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 8 / 52

9 All test conditions are at 25 C. The figures are identical for THN Typical Output Ripple and Noise. Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; V in = V in nom Typical Input Start-Up and Output Rise Characteristic Using ON/OFF Voltage Start-Up and V out Rise Characteristic Conduction Emission of EN55022 Class A Conduction Emission of EN55022 Class B Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 9 / 52

10 All test conditions are at 25 C. The figures are identical for THN Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow V in = V in nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, V in = V in nom Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 10 / 52

11 All test conditions are at 25 C. The figures are identical for THN Typical Output Ripple and Noise. Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; V in = V in nom Typical Input Start-Up and Output Rise Characteristic Using ON/OFF Voltage Start-Up and V out Rise Characteristic Conduction Emission of EN55022 Class A Conduction Emission of EN55022 Class B Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 11 / 52

12 All test conditions are at 25 C. The figures are identical for THN Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow V in = V in nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, V in = V in nom Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 12 / 52

13 All test conditions are at 25 C. The figures are identical for THN Typical Output Ripple and Noise. Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; V in = V in nom Typical Input Start-Up and Output Rise Characteristic Using ON/OFF Voltage Start-Up and V out Rise Characteristic Conduction Emission of EN55022 Class A Conduction Emission of EN55022 Class B Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 13 / 52

14 Characteristic Curves All test conditions are at 25 C. The figures are identical for THN Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow V in = V in nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, V in = V in nom Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 14 / 52

15 All test conditions are at 25 C. The figures are identical for THN Typical Output Ripple and Noise. Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; V in = V in nom Typical Input Start-Up and Output Rise Characteristic Using ON/OFF Voltage Start-Up and V out Rise Characteristic Conduction Emission of EN55022 Class A Conduction Emission of EN55022 Class B Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 15 / 52

16 All test conditions are at 25 C. The figures are identical for THN Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow V in = V in nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, V in = V in nom Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 16 / 52

17 All test conditions are at 25 C. The figures are identical for THN Typical Output Ripple and Noise. Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; V in = V in nom Typical Input Start-Up and Output Rise Characteristic Using ON/OFF Voltage Start-Up and V out Rise Characteristic Conduction Emission of EN55022 Class A Conduction Emission of EN55022 Class B Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 17 / 52

18 All test conditions are at 25 C. The figures are identical for THN Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow V in = V in nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, V in = V in nom Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 18 / 52

19 All test conditions are at 25 C. The figures are identical for THN Typical Output Ripple and Noise. Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; V in = V in nom Typical Input Start-Up and Output Rise Characteristic Using ON/OFF Voltage Start-Up and V out Rise Characteristic Conduction Emission of EN55022 Class A Conduction Emission of EN55022 Class B Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 19 / 52

20 All test conditions are at 25 C. The figures are identical for THN Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow V in = V in nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, V in = V in nom Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 20 / 52

21 All test conditions are at 25 C. The figures are identical for THN Typical Output Ripple and Noise. Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; V in = V in nom Typical Input Start-Up and Output Rise Characteristic Using ON/OFF Voltage Start-Up and Vout Rise Characteristic Conduction Emission of EN55022 Class A Conduction Emission of EN55022 Class B Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 21 / 52

22 All test conditions are at 25 C. The figures are identical for THN Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow V in = V in nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, V in = V in nom Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 22 / 52

23 All test conditions are at 25 C. The figures are identical for THN Typical Output Ripple and Noise. Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; V in = V in nom Typical Input Start-Up and Output Rise Characteristic Using ON/OFF Voltage Start-Up and V out Rise Characteristic Conduction Emission of EN55022 Class A Conduction Emission of EN55022 Class B Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 23 / 52

24 All test conditions are at 25 C. The figures are identical for THN Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow V in = V in nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, V in = V in nom Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 24 / 52

25 All test conditions are at 25 C. The figures are identical for THN Typical Output Ripple and Noise. Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; V in = V in nom Typical Input Start-Up and Output Rise Characteristic Using ON/OFF Voltage Start-Up and V out Rise Characteristic Conduction Emission of EN55022 Class A Conduction Emission of EN55022 Class B Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 25 / 52

26 All test conditions are at 25 C. The figures are identical for THN Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow V in = V in nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, V in = V in nom Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 26 / 52

27 All test conditions are at 25 C. The figures are identical for THN Typical Output Ripple and Noise. Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; V in = V in nom Typical Input Start-Up and Output Rise Characteristic Using ON/OFF Voltage Start-Up and V out Rise Characteristic Conduction Emission of EN55022 Class A Conduction Emission of EN55022 Class B Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 27 / 52

28 All test conditions are at 25 C. The figures are identical for THN Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow V in = V in nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, V in = V in nom Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 28 / 52

29 All test conditions are at 25 C. The figures are identical for THN Typical Output Ripple and Noise. Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; V in = V in nom Typical Input Start-Up and Output Rise Characteristic Using ON/OFF Voltage Start-Up and V out Rise Characteristic Conduction Emission of EN55022 Class A Conduction Emission of EN55022 Class B Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 29 / 52

30 All test conditions are at 25 C. The figures are identical for THN Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow V in = V in nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, V in = V in nom Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 30 / 52

31 All test conditions are at 25 C. The figures are identical for THN Typical Output Ripple and Noise. Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; V in = V in nom Typical Input Start-Up and Output Rise Characteristic Using ON/OFF Voltage Start-Up and V out Rise Characteristic Conduction Emission of EN55022 Class A Conduction Emission of EN55022 Class B Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 31 / 52

32 All test conditions are at 25 C. The figures are identical for THN Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow V in = V in nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, V in = V in nom Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 32 / 52

33 All test conditions are at 25 C. The figures are identical for THN Typical Output Ripple and Noise. Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; V in = V in nom Typical Input Start-Up and Output Rise Characteristic Using ON/OFF Voltage Start-Up and V out Rise Characteristic Conduction Emission of EN55022 Class A Conduction Emission of EN55022 Class B Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 33 / 52

34 All test conditions are at 25 C. The figures are identical for THN Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow V in = V in nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, V in = V in nom Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 34 / 52

35 All test conditions are at 25 C. The figures are identical for THN Typical Output Ripple and Noise. Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; V in = V in nom Typical Input Start-Up and Output Rise Characteristic Using ON/OFF Voltage Start-Up and V out Rise Characteristic Conduction Emission of EN55022 Class A Conduction Emission of EN55022 Class B Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 35 / 52

36 All test conditions are at 25 C. The figures are identical for THN Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow V in = V in nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, V in = V in nom Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 36 / 52

37 All test conditions are at 25 C. The figures are identical for THN Typical Output Ripple and Noise. Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; V in = V in nom Typical Input Start-Up and Output Rise Characteristic Using ON/OFF Voltage Start-Up and V out Rise Characteristic Conduction Emission of EN55022 Class A Conduction Emission of EN55022 Class B Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 37 / 52

38 All test conditions are at 25 C. The figures are identical for THN Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow V in = V in nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, V in = V in nom Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 38 / 52

39 All test conditions are at 25 C. The figures are identical for THN Typical Output Ripple and Noise. Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; V in = V in nom Typical Input Start-Up and Output Rise Characteristic Using ON/OFF Voltage Start-Up and V out Rise Characteristic Conduction Emission of EN55022 Class A Conduction Emission of EN55022 Class B Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 39 / 52

40 All test conditions are at 25 C. The figures are identical for THN Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow V in = V in nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, V in = V in nom Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 40 / 52

41 All test conditions are at 25 C. The figures are identical for THN Typical Output Ripple and Noise. Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; V in = V in nom Typical Input Start-Up and Output Rise Characteristic Using ON/OFF Voltage Start-Up and V out Rise Characteristic Conduction Emission of EN55022 Class A Conduction Emission of EN55022 Class B Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 41 / 52

42 Testing Configurations Input reflected-ripple current measurement test up CURRENT PROBE MEASURE POINT L +Vin BATTERY C1 + C2 + -Vin Component Value Voltage Reference L 12μH C1 10μF 100V Aluminum Electrolytic Capacitor C2 10μF 100V Aluminum Electrolytic Capacitor Peak-to-peak output ripple & noise measurement test up Output voltage and efficiency measurement test up Vo I Efficiency Vin I o in Note: All measurements are taken at the module terminals. 100% Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 42 / 52

43 EMI considerations Suggested schematic to comply with EN55022 Class B limits Recommended layout To comply with EN55022 CLASS B following components are recommended: THN x Component Value Voltage Reference C1 4.7μF 25V 1812 MLCC C2, C C4, C5 470pF 2KV 1808 MLCC L1 325μH ---- Common Choke, P/N: TCK-050 THN x Component Value Voltage Reference C1 4.7μF 50V 1812 MLCC C2, C C4, C5 470pF 2KV 1808 MLCC L1 325μH ---- Common Choke, P/N: TCK-050 THN x Component Value Voltage Reference C1, C2 2.2μF 100V 1812 MLCC C3 2.2μF 100V 1812 MLCC C4, C5 1000pF 2KV 1808 MLCC L1 325μH ---- Common Choke, P/N: TCK-050 Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 43 / 52

44 EMI Considerations Suggested schematic to comply with EN55022 Class B limits Recommended layout To comply with EN55022 CLASS B following components are recommended: THN x Component Value Voltage Reference C1 4.7μF 25V 1812 MLCC C2, C C4, C5 470pF 2KV 1808 MLCC L1 325μH ---- Common Choke, P/N: TCK-050 THN x Component Value Voltage Reference C1 4.7μF 50V 1812 MLCC C2, C C4, C5 470pF 2KV 1808 MLCC L1 325μH ---- Common Choke, P/N: TCK-050 THN x Component Value Voltage Reference C1, C2 2.2μF 100V 1812 MLCC C3 2.2μF 100V 1812 MLCC C4, C5 1000pF 2KV 1808 MLCC L1 325μH ---- Common Choke, P/N: TCK-050 Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 44 / 52

45 This Common Choke L1 has been define as follow: TCK-050 L: 325mH ±35% / DCR: 35Ω, max A: (Height): 8.8 mm, Max Test condition: 100KHz / 100mV Recommended through hole: Φ0.8mm All dimensions in millimeters EMI considerations (Continued) Input Source Impedance The power module should be connected to a low impedance input source. Highly inductive source impedance can affect the stability of the power module. Input external C-L-C filter is recommended to minimize input reflected ripple current. The inductor is simulated source impedance of 12μH and capacitor is Nippon Chemi-Con KZE-series 10μF/100V & 10μF/100V. The capacitor must be equipped as close as possible to the input terminals of the power module for lower impedance. Output Over Current Protection If excessive output currents occur in the system, circuit protection is required on all power supplies. Normally, overload current is maintained at approximately about 150 percent of rated current for THN 20 series. Hiccup-mode is a method of operation in a power supply whose purpose is to protect the power supply from being damaged during an over-current fault condition. It also enables the power supply to restart when the fault is removed. One of the problems resulting from over current is that excessive heat may be generated in power devices; especially MOSFET and Schottky diodes and the temperature of those devices may exceed their specified limits. A protection mechanism has to be used to prevent those power devices from being damaged. Output Over Voltage Protection The output over-voltage protection consists of a Zener diode that monitors the output voltage on the feedback loop. If the voltage on the output terminals exceeds the over-voltage protection threshold, then the Zener diode will send a current signal to the control IC to limiting the output voltage. Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 45 / 52

46 Output Voltage Adjustment Output voltage set point adjustment allows the user to increase or decrease the output voltage set point of a module. This is accomplished by connecting an external resistor between the TRIM pin and either the +V out or -V out pins. With an external resistor between the TRIM and -V out pin, the output voltage set point increases. With an external resistor between the TRIM and +V out pin, the output voltage set point decreases. Trim up equation G L R H U VOup, L K Trim down equation VO, down L G RD H VO VO, down Trim constants Module G H K L THN 20-xx THN 20-xx THN 20-xx THN 20-xx Vin +Vin -Vout RU Trim RD +Vout TRIM TABLE THN 20-xx10 Trim up (%) V OUT (Volts) = R U (KΩ) = Trim down (%) V OUT (Volts) = R D (KΩ) = THN 20-xx11 Trim up (%) V OUT (Volts) = R U (KΩ) = Trim down (%) V OUT (Volts) = R D (KΩ) = THN 20-xx12 Trim up (%) V OUT (Volts)= R U (KΩ)= Trim down (%) V OUT (Volts)= R D (KΩ)= THN 20-xx13 Trim up (%) V OUT (Volts)= R U (KΩ)= Trim down (%) V OUT (Volts)= R D (KΩ)= Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 46 / 52

47 Short Circuitry Protection Continuous, hiccup and auto-recovery mode. During short circuit, converter still shut down. The average current during this condition will be very low and the device can be safety in this condition. Thermal Consideration The power module operates in a variety of thermal environments. However, sufficient cooling should be provided to help ensure reliable operation of the unit. Heat is removed by conduction, convection, and radiation to the surrounding environment. Proper cooling can be verified by measuring the point as the figure below. The temperature at this location should not exceed 105 C. When operating, adequate cooling must be provided to maintain the test point temperature at or below 105 C. Although the maximum point temperature of the power modules is 105 C, you can limit this Temperature to a lower value for extremely high reliability. TEMPERATURE MEASURE POINT Heat Sink Consideration Equip heat sink for lower temperature and higher reliability of the module. Considering space and air-flow is the way to choose which heat sink is needed. There are two types for choosing Suffix HC: Heat Sink mounted with Clamp Suffix HS: Heat Sink All dimensions in millimeters Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 47 / 52

48 Remote ON/OFF Control The Remote ON/OFF Pin is controlled DC/DC power module to turn on and off; the user must use a switch to control the logic voltage high or low level of the pin referenced to -V in. The switch can be open collector transistor, FET and Photo-Couple. The switch must be capable of sinking up to 1 ma at low-level logic Voltage. High-level logic of the ON/OFF signal maximum voltage is allowable leakage current of the switch at 15V is 50μA. Remote ON/OFF Implementation Circuits Isolated-Closure Remote ON/OFF Level Control Using TTL Output Level Control Using Line Voltage There are two remote control options available, positive logic and negative logic. a. The Positive logic structure turned on of the DC/DC module when the ON/OFF pin is at high-level logic and low-level logic is turned off it. When THN 20 module is turned off at Low-level logic When THN 20 module is turned on at High-level logic b. The Negative logic structure turned on of the DC/DC module when the ON/OFF pin is at low-level logic and turned off when at high-level logic. When THN 20 module is turned on at Low-level logic When THN 20 module is turned off at High-level logic Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 48 / 52

49 Mechanical Data PIN CONNECTION PIN THN 20 SERIES 1 + INPUT 2 - INPUT 3 ON/OFF 4 +VOUT 5 TRIM 6 -VOUT 1. All dimensions in inches(mm) Tolerance: x.xx ±0.02 (x.x ±0.5) x.xxx ±0.01 (x.xx ±0.25) 2. Pin pitch tolerance: ±0.01 (±0.25) 3. Pin dimension tolerance: ±0.004 (±0.1) EXTERNAL OUTPUT TRIMMING Output can be externally trimmed by using the method shown below. TRIM UP TRIM DOWN 6 5 R U R D PRODUCT STANDARD TABLE Option Positive remote ON/OFF (Standard) Suffix Negative remote ON/OFF -N without ON/OFF pin -B negative remote ON/OFF without TRIM pin -C without ON/OFF & TRIM pin -D positive remote ON/OFF without TRIM pin -E 5 4 Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 49 / 52

50 Recommended Pad Layout Lead free wave solder profile for THN 20 SERIES Soldering Considerations Zone Preheat zone Reference Parameter. Rise temperature speed: 3 C/sec max. Preheat temperature: 100~130 C Actual heating Peak temperature: 250~260 C Peak time (T1+T2 time): 4~6 sec Reference Solder: Sn-Ag-Cu: Sn-Cu Hand Welding: Soldering iron: Power 90W Welding Time: 2~4 sec Temperature: 380~400 C Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 50 / 52

51 Packaging Information All dimensions in millimeters 10 PCS per TUBE Part Number Structure THN : 3.3Vdc 13: 15Vdc 11: 5,0Vdc 22: ±12Vdc 12: 12Vdc 23: ±15Vdc Model Input Output Output Current No Load (1) Efficiency (2) Number Range Voltage Full Load Input Current (%) THN Vdc 3.3Vdc 4500mA 10mA 86 THN Vdc 5Vdc 4000mA 10mA 89 THN Vdc 12Vdc 1670mA 10mA 89 THN Vdc 15Vdc 1330mA 10mA 89 THN Vdc ±12Vdc ±833mA 10mA 89 THN Vdc ±15Vdc ±667mA 10mA 90 THN Vdc 3.3Vdc 4500mA 10mA 87 THN Vdc 5Vdc 4000mA 10mA 90 THN Vdc 12Vdc 1670mA 10mA 90 THN Vdc 15Vdc 1330mA 10mA 91 THN Vdc ±12Vdc ±833mA 10mA 90 THN Vdc ±15Vdc ±667mA 10mA 90 THN Vdc 3.3Vdc 4500mA 10mA 87 THN Vdc 5Vdc 4000mA 10mA 89 THN Vdc 12Vdc 1670mA 10mA 90 THN Vdc 15Vdc 1330mA 10mA 90 THN Vdc ±12Vdc ±833mA 10mA 90 THN Vdc ±15Vdc ±667mA 10mA 90 Note 1. Typical value at nominal input voltage and no load. Note 2. Typical value at nominal input voltage and full load. Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 51 / 52

52 Safety and Installation Instruction Fusing Consideration Caution: This power module is not internally fused. An input line fuse must always be used. This encapsulated power module can be used in a wide variety of applications, ranging from simple stand-alone operation to an integrated part of sophisticated power architecture. To maximum flexibility, internal fusing is not included; however, to achieve maximum safety and system protection, always use an input line fuse. The safety agencies require a slow-blow fuse with maximum rating of 4A for THN 20-12xx modules and 2A for THN 20-24xx modules and 1A for THN 20-48xx modules. Based on the information provided in this data sheet on Inrush energy and maximum DC input current; the same type of fuse with lower rating can be used. Refer to the fuse manufacturer s data for further information. MTBF and Reliability The MTBF of THN 20 SERIES of DC/DC converters has been calculated using Bellcore TR-NWT Case I: 50% stress, Operating Temperature at 40 C (Ground fixed and controlled environment). The resulting figure for MTBF is hours. MIL-HDBK 217F NOTICE2 FULL LOAD, Operating Temperature at 25 C. The resulting figure for MTBF is hours. Created by Traco Electronic AG Arp. Date: May 31 th, 2013 / Rev.: 1.2 / Page 52 / 52

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