THN 20WI Series Application Note DC/DC Converter 9 to 36Vdc and 18 to 75Vdc input voltage, 20 Watt Output Power; 3.3 to 15Vdc Single Output and ±12Vdc to ±15Vdc Dual Output Features Pending Applications Wireless Network Telecom/Datacom Industry Control System Measurement Semiconductor Equipment 20 watts maximum output power Ultra low quiescent current Single output current up to 4.5A 4:1 ultra wide input voltage range of 9-36Vdc and 18-75 Vdc Six-sided continuous shield Meet EN55022 CLASS A without external components Industry standard pin-out THN 15WI series compatible High efficiency up to 90% Low profile: 25.4 x 25.4 x 9.9mm (1.0 x 1.0 x 0.39 inch) Fixed switching frequency RoHS directive compliant No minimum load Input to output isolation: 1500Vdc, min Input under-voltage protection Output over-voltage protection Over-current protection, auto-recovery Output short circuit protection 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 20WI single 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 4:1 ultra wide input voltage of 9 – 36Vdc and 18 – 75Vdc, comprehensively protected against over-current, over- voltage and input under-voltage protection conditions, and adjustable output voltage. Table of contents Absolute Maximum Rating Output Specification Input Specification General Specification Environmental Specifications EMC Characteristics Characteristic Curves Testing Configurations EMI Consideration Input Source Impedance Output Over Current Protection Output Over Voltage Protection Created by Traco Electronic AG Arp. P2 P2 & P3 P3 P4 P4 P4 P5 – P28 P29 P30 – P32 P32 P32 P32 Output Voltage Adjustment Short Circuitry Protection Thermal Consideration Heat Sink Consideration Remote ON/OFF Control Mechanical Data Recommended Pad Layout Soldering Considerations Packaging Information Part Number Structure Safety and Installation Instruction MTBF and Reliability www.tracopower.com st P33 P34 P34 P34 P35 P36 P37 P37 P38 P38 P39 P39 Date: September 1 , 2010 / Rev.: 1.0 / Page 1 / 39 Application Note 20W Single & Dual Output Absolute Maximum Rating Parameter Model Input Voltage Continuous Transient (1sec max.) Operating Ambient Temperature (with derating) Operating Case Temperature Storage Temperature Min THN 20-24xxWI THN 20-48xxWI THN 20-24xxWI THN 20-48xxWI All -40 All -55 Max Unit 36 75 50 100 +101 +105 +125 Vdc °C °C °C * Test condition with vertical direction by natural convection (20LFM). Output Specification Parameter Output Voltage Range (Vin = Vin nom; Full Load; TA = 25°C) Voltage Adjustability (See Page 33) Output Regulation Line (Vin min to Vin max at Full Load) Load (0% to 100% of Full Load) Load (10% to 90% of Full Load) Cross Regulation Asymmetrical Load 25% / 100% of Full Load Output Ripple & Noise (See Page 29) Peak-to-Peak (20MHz bandwidth) (Measured with a 1μF M/C X7R and a 10μF T/C ) Temperature Coefficient Output Voltage Overshoot (Vin min to Vin max; Full Load ; TA = 25°C) Dynamic Load Response (Vin = Vin nom; TA = 25°C) Load step change from 75% to 100% or 100 to 75% of Full Load Peak Deviation Setting Time (VOUT < 10% peak deviation) Output Current Created by Traco Electronic AG Arp. Model THN 20-xx10WI THN 20-xx11WI THN 20-xx12WI THN 20-xx13WI THN 20-xx22WI THN 20-xx23WI All All Dual Output THN 20-xx10WI THN 20-xx11WI THN 20-xx12WI THN 20-xx13WI THN 20-xx22WI THN 20-xx23WI All Min 3.267 4.95 11.88 14.85 ±11.88 ±14.85 -10 Typ 3.3 5 12 15 ±12 ±15 -0.2 -0.2 -0.1 +0.2 +0.2 +0.1 -5% +5% 75 75 100 100 100 100 -0.02 All All All THN 20-xx10WI THN 20-xx11WI THN 20-xx12WI THN 20-xx13WI THN 20-xx22WI THN 20-xx23WI www.tracopower.com Max 3.333 5.05 12.12 15.15 ±12.12 ±15.15 +10 % % % +0.02 %/°C 5 % VOUT mV μS 4500 4000 1670 1330 ±833 ±667 th Vdc mV Pk-Pk 350 250 0 0 0 0 0 0 Unit mA Date: May 31 , 2013 / Rev.: 1.1 / Page 2 / 39 Application Note 20W Single & Dual Output Output Specification (Continued) Parameter Model THN 20-xx10WI THN 20-xx11WI THN 20-xx12WI THN 20-xx13WI THN 20-xx22WI THN 20-xx23WI THN 20-xx10WI THN 20-xx11WI THN 20-xx12WI THN 20-xx13WI THN 20-xx22WI THN 20-xx23WI All All Output Capacitor Load Output Over Voltage Protection (Voltage Clamped) Output Over Current Protection Output Short Circuit Protection Min Typ 3.7 5.6 13.5 16.8 ±13.5 ±16.8 Max 7000 5000 850 700 ±500 ±350 5.4 7.0 19.6 20.5 ±19.6 ±20.5 150 Hiccup, Automatic recovery Unit Vdc Vdc % FL. Input Specification Parameter Model THN 20-24xxWI THN 20-48xxWI THN 20-2410WI THN 20-2411WI THN 20-2412WI THN 20-2413WI THN 20-2422WI THN 20-2423WI THN 20-4810WI THN 20-4811WI THN 20-4812WI THN 20-4813WI THN 20-4822WI THN 20-4823WI THN 20-24xxWI THN 20-48xxWI THN 20-24xxWI THN 20-48xxWI Operating Input Voltage Input Standby Current (Typical value at Vin = Vin nom; No Load) Under Voltage Lockout Turn-on Threshold Under Voltage Lockout Turn-off Threshold Input Reflected Ripple Current (See Page 29) (5 to 20MHz, 12μH source impedance) Start Up Time (Vin = Vin nom and constant resistive load) Power up Remote ON/OFF Remote ON/OFF Control (See Page 35) (The ON/OFF pin voltage is referenced to -VIN) Negative Logic DC-DC ON (Short) DC-DC OFF (Open) Positive Logic DC-DC ON (Open) DC-DC OFF (Short) Remote Off Input Current Input Current of Remote Control Pin Created by Traco Electronic AG Arp. www.tracopower.com Min 9 18 Typ 24 48 6 6 6 6 6 6 4 4 4 4 4 4 Vdc Vdc 8 16 Vdc 30 mA Pk-Pk All All All Unit mA 9 18 All All Max 36 75 30 30 0 3 3 0 1.2 15 15 1.2 2.0 -0.5 1.0 th mS Vdc mA mA Date: May 31 , 2013 / Rev.: 1.1 / Page 3 / 39 Application Note 20W Single & Dual Output General Specification Parameter Efficiency (See Page 29) (Vin = Vin nom; Full Load; TA = 25°C) Model THN 20-2410WI THN 20-2411WI THN 20-2412WI THN 20-2413WI THN 20-2422WI THN 20-2423WI THN 20-4810WI THN 20-4811WI THN 20-4812WI THN 20-4813WI THN 20-4822WI THN 20-4823WI Min All 1500 1000 1 Isolation Voltage (for 60 seconds) Input to Output Input (Output) to Case Isolation Resistance Isolation Capacitance Switching Frequency Weight MTBF (See Page 39) Bellcore TR-NWT-000332, TC = 40°C MIL-HDBK-217F Case Material Base Material Potting Material All All All All All Dimensions Typ 86 89 89 89 89 90 87 89 89 90 89 90 Max Unit % Vdc 1500 330 15 1’766’000 553’000 Nickel-coated copper FR4 PCB Silicon (UL94-V0) 1.0 X 1.0 X 0.39 Inch (25.4 X 25.4 X 9.9mm) GΩ pF KHz g hours Environmental Specifications Thermal shock Vibration Relative humidity MIL-STD-810F MIL-STD-810F 5% to 95% RH EMC Characteristics EMI (See Page 30 - 32) EN 55022 ESD EN 61000-4-2 Radiated immunity Fast transient* Surge* Conducted immunity EN 61000-4-3 EN 61000-4-4 EN 61000-4-5 EN 61000-4-6 Class B Air ±8KV Contact ±6KV 10 V/m ±2KV ±2KV 10 Vr.m.s Performance Criteria A Performance Criteria A Performance Criteria A Performance Criteria A Performance Criteria A * An external input filter capacitor is required if the module has to meet EN 61000-4-4, EN 61000-4-5. We suggest to use following filter capacitor: Nippon Chemi-Con KY series, 220μF/100V, ESR 48mΩ. Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 4 / 39 Application Note 20W Single & Dual Output Characteristic Curves All test conditions are at 25°C. The figures are identical for THN 20-2410WI Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow, Vin = Vin nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, Vin = Vin nom Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 5 / 39 Application Note 20W Single & Dual Output Characteristic Curves (Continued) All test conditions are at 25°C. The figures are identical for THN 20-2410WI Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; Vin = Vin nom Typical Output Ripple and Noise. Vin = Vin nom, Full Load Typical Input Start-Up and Output Rise Characteristic Vin = Vin nom, Full Load Using ON/OFF Voltage Start-Up and Vout Rise Characteristic Vin = Vin nom, Full Load Conduction Emission of EN55022 Class A Vin = Vin nom, Full Load Conduction Emission of EN55022 Class B Vin = Vin nom, Full Load Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 6 / 39 Application Note 20W Single & Dual Output Characteristic Curves (Continued) All test conditions are at 25°C. The figures are identical for THN 20-2411WI Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow, Vin = Vin nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, Vin = Vin nom Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 7 / 39 Application Note 20W Single & Dual Output Characteristic Curves (Continued) All test conditions are at 25°C. The figures are identical for THN 20-2411WI Typical Output Ripple and Noise. Vin = Vin nom, Full Load Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; Vin = Vin nom Typical Input Start-Up and Output Rise Characteristic Vin = Vin nom, Full Load Using ON/OFF Voltage Start-Up and Vout Rise Characteristic Vin = Vin nom, Full Load Conduction Emission of EN55022 Class A Vin = Vin nom, Full Load Conduction Emission of EN55022 Class B Vin = Vin nom, Full Load Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 8 / 39 Application Note 20W Single & Dual Output Characteristic Curves (Continued) All test conditions are at 25°C. The figures are identical for THN 20-2412WI Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow, Vin = Vin nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, Vin = Vin nom Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 9 / 39 Application Note 20W Single & Dual Output Characteristic Curves (Continued) All test conditions are at 25°C. The figures are identical for THN 20-2412WI Typical Output Ripple and Noise. Vin = Vin nom, Full Load Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; Vin = Vin nom Typical Input Start-Up and Output Rise Characteristic Vin = Vin nom, Full Load Using ON/OFF Voltage Start-Up and Vout Rise Characteristic Vin = Vin nom, Full Load Conduction Emission of EN55022 Class A Vin = Vin nom, Full Load Conduction Emission of EN55022 Class B Vin = Vin nom, Full Load Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 10 / 39 Application Note 20W Single & Dual Output Characteristic Curves (Continued) All test conditions are at 25°C. The figures are identical for THN 20-2413WI Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow, Vin = Vin nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, Vin = Vin nom Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 11 / 39 Application Note 20W Single & Dual Output Characteristic Curves (Continued) All test conditions are at 25°C. The figures are identical for THN 20-2413WI Typical Output Ripple and Noise. Vin = Vin nom, Full Load Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; Vin = Vin nom Typical Input Start-Up and Output Rise Characteristic Vin = Vin nom, Full Load Using ON/OFF Voltage Start-Up and Vout Rise Characteristic Vin = Vin nom, Full Load Conduction Emission of EN55022 Class A Vin = Vin nom, Full Load Conduction Emission of EN55022 Class B Vin = Vin nom, Full Load Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 12 / 39 Application Note 20W Single & Dual Output Characteristic Curves (Continued) All test conditions are at 25°C. The figures are identical for THN 20-2422WI Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage, Full Load Derating Output Current versus Ambient Temperature with Airflow, Vin = Vin nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, Vin = Vin nom Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 13 / 39 Application Note 20W Single & Dual Output Characteristic Curves (Continued) All test conditions are at 25°C. The figures are identical for THN 20-2422WI Typical Output Ripple and Noise. Vin = Vin nom, Full Load Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; Vin = Vin nom Typical Input Start-Up and Output Rise Characteristic Vin = Vin nom, Full Load Using ON/OFF Voltage Start-Up and Vout Rise Characteristic Vin = Vin nom, Full Load Conduction Emission of EN55022 Class A Vin = Vin nom, Full Load Conduction Emission of EN55022 Class B Vin = Vin nom, Full Load Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 14 / 39 Application Note 20W Single & Dual Output Characteristic Curves (Continued) All test conditions are at 25°C. The figures are identical for THN 20-2423WI Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow Vin = Vin nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, Vin = Vin nom Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 15 / 39 Application Note 20W Single & Dual Output Characteristic Curves (Continued) All test conditions are at 25°C. The figures are identical for THN 20-2423WI Typical Output Ripple and Noise. Vin = Vin nom, Full Load Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load ; Vin = Vin nom Typical Input Start-Up and Output Rise Characteristic Vin = Vin nom, Full Load Using ON/OFF Voltage Start-Up and Vout Rise Characteristic Vin = Vin nom, Full Load Conduction Emission of EN55022 Class A Vin = Vin nom, Full Load Conduction Emission of EN55022 Class B Vin = Vin nom, Full Load Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 16 / 39 Application Note 20W Single & Dual Output Characteristic Curves (Continued) All test conditions are at 25°C. The figures are identical for THN 20-4810WI Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow, Vin = Vin nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, Vin = Vin nom Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 17 / 39 Application Note 20W Single & Dual Output Characteristic Curves (Continued) All test conditions are at 25°C. The figures are identical for THN 20-4810WI Typical Output Ripple and Noise. Vin = Vin nom, Full Load Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; Vin = Vin nom Typical Input Start-Up and Output Rise Characteristic Vin = Vin nom, Full Load Using ON/OFF Voltage Start-Up and Vout Rise Characteristic Vin = Vin nom, Full Load Conduction Emission of EN55022 Class A Vin = Vin nom, Full Load Conduction Emission of EN55022 Class B Vin = Vin nom, Full Load Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 18 / 39 Application Note 20W Single & Dual Output Characteristic Curves (Continued) All test conditions are at 25°C. The figures are identical for THN 20-4811WI Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow, Vin = Vin nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, Vin = Vin nom Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 19 / 39 Application Note 20W Single & Dual Output Characteristic Curves (Continued) All test conditions are at 25°C. The figures are identical for THN 20-4811WI Typical Output Ripple and Noise. Vin = Vin nom, Full Load Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; Vin = Vin nom Typical Input Start-Up and Output Rise Characteristic Vin = Vin nom; Full Load Using ON/OFF Voltage Start-Up and Vout Rise Characteristic Vin = Vin nom; Full Load Conduction Emission of EN55022 Class A Vin = Vin nom, Full Load Conduction Emission of EN55022 Class B Vin = Vin nom, Full Load Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 20 / 39 Application Note 20W Single & Dual Output Characteristic Curves (Continued) All test conditions are at 25°C. The figures are identical for THN 20-4812WI Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow, Vin = Vin nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, Vin = Vin nom Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 21 / 39 Application Note 20W Single & Dual Output Characteristic Curves (Continued) All test conditions are at 25°C. The figures are identical for THN 20-4812WI Typical Output Ripple and Noise. Vin = Vin nom, Full Load Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; Vin = Vin nom Typical Input Start-Up and Output Rise Characteristic Vin = Vin nom, Full Load Using ON/OFF Voltage Start-Up and Vout Rise Characteristic Vin = Vin nom, Full Load Conduction Emission of EN55022 Class A Vin = Vin nom, Full Load Conduction Emission of EN55022 Class B Vin = Vin nom, Full Load Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 22 / 39 Application Note 20W Single & Dual Output Characteristic Curves (Continued) All test conditions are at 25°C. The figures are identical for THN 20-4813WI Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow, Vin = Vin nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, Vin = Vin nom Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 23 / 39 Application Note 20W Single & Dual Output Characteristic Curves (Continued) All test conditions are at 25°C. The figures are identical for THN 20-4813WI Typical Output Ripple and Noise. Vin = Vin nom, Full Load Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; Vin = Vin nom Typical Input Start-Up and Output Rise Characteristic Vin = Vin nom, Full Load Using ON/OFF Voltage Start-Up and Vout Rise Characteristic Vin = Vin nom, Full Load Conduction Emission of EN55022 Class A Vin = Vin nom, Full Load Conduction Emission of EN55022 Class B Vin = Vin nom, Full Load Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 24 / 39 Application Note 20W Single & Dual Output Characteristic Curves (Continued) All test conditions are at 25°C. The figures are identical for THN 20-4822WI Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow, Vin = Vin nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, Vin = Vin nom Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 25 / 39 Application Note 20W Single & Dual Output Characteristic Curves (Continued) All test conditions are at 25°C. The figures are identical for THN 20-4822WI Typical Output Ripple and Noise. Vin = Vin nom, Full Load Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; Vin = Vin nom Typical Input Start-Up and Output Rise Characteristic Vin = Vin nom, Full Load Using ON/OFF Voltage Start-Up and Vout Rise Characteristic Vin = Vin nom, Full Load Conduction Emission of EN55022 Class A Vin = Vin nom, Full Load Conduction Emission of EN55022 Class B Vin = Vin nom, Full Load Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 26 / 39 Application Note 20W Single & Dual Output Characteristic Curves (Continued) All test conditions are at 25°C. The figures are identical for THN 20-4823WI Efficiency versus Output Current Power Dissipation versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow, Vin = Vin nom Derating Output Current Versus Ambient Temperature with Heat Sink and Airflow, Vin = Vin nom Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 27 / 39 Application Note 20W Single & Dual Output Characteristic Curves (Continued) All test conditions are at 25°C. The figures are identical for THN 20-4823WI Typical Output Ripple and Noise. Vin = Vin nom, Full Load Transient Response to Dynamic Load Change from 100% to 75% to 100% of Full Load; Vin = Vin nom Typical Input Start-Up and Output Rise Characteristic Vin = Vin nom, Full Load Using ON/OFF Voltage Start-Up and Vout Rise Characteristic Vin = Vin nom, Full Load Conduction Emission of EN55022 Class A Vin = Vin nom, Full Load Conduction Emission of EN55022 Class B Vin = Vin nom, Full Load Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 28 / 39 Application Note 20W Single & Dual Output Testing Configurations Input reflected-ripple current measurement test up CURRENT PROBE MEASURE POINT +Vin L + BATTERY C1 + C2 -Vin Component L C1 C2 Value 12μH 10μF 10μF Voltage ---100V 100V Reference ---Aluminum Electrolytic Capacitor Aluminum Electrolytic Capacitor Peak-to-peak output ripple & noise measurement test up Output voltage and efficiency measurement test up Note: All measurements are taken at the module terminals. V Io Efficiency o Vin I in Created by Traco Electronic AG Arp. 100% www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 29 / 39 Application Note 20W Single & Dual Output EMI Considerations Suggested schematic to comply with EN55022 Class B limits Recommended layout with input filter To comply with EN55022 CLASS B following components are recommended: THN 20-24xxWI Component C1 C2, C3 C4, C5 L1 Value 4.7μF ---470pF 325μH Voltage 50V ---2KV ---- Value 2.2μF 2.2μF 1000pF 325μH Voltage 100V 100V 2KV ---- Reference 1812 MLCC ---1808 MLCC Common Choke, P/N: TCK-050 THN 20-48xxWI Component C1, C3 C2 C4, C5 L1 Created by Traco Electronic AG Arp. www.tracopower.com Reference 1812 MLCC 1812 MLCC 1808 MLCC Common Choke, P/N: TCK-050 th Date: May 31 , 2013 / Rev.: 1.1 / Page 30 / 39 Application Note 20W Single & Dual Output EMI Considerations C5 L1 ＋INPUT +Vin C1 C2 +Vout Load C3 COM Load -Vin －INPUT -Vout D/D Converter C4 Suggested schematic to comply with EN55022 Class B limits Recommended layout with input filter To comply with EN55022 CLASS B following components are recommended: THN 20-242xWI Component C1 C2, C3 C4, C5 L1 Value 4.7μF ---470pF 325μH Voltage 50V ---2KV ---- Reference 1812 MLCC ---1808 MLCC Common Choke, P/N: TCK-050 Value 2.2μF 2.2μF 1000pF 325μH Voltage 100V 100V 2KV ---- Reference 1812 MLCC 1812 MLCC 1808 MLCC Common Choke, P/N: TCK-050 THN 20-482xWI Component C1, C2 C3 C4, C5 L1 Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 31 / 39 Application Note 20W Single & Dual Output EMI Considerations (Continued) 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 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 as close as possible to the input terminals of the power module for lower impedance. Output Over Current Protection When 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 20WI single output 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. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 32 / 39 Application Note 20W Single & Dual Output 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 Vo (+) or Vo (-) pins. With an external resistor between the TRIM and Vo (-) pin, the output voltage set point increases. With an external resistor between the TRIM and Vo (+) pin, the output voltage set point decreases. Trim up equation GL RU H VO ,up L K -Vout RU Trim down equation -Vin VO , down L G RD H VO VO , down Trim +Vin RD Trim constants Module THN 20-xx10WI THN 20-xx11WI THN 20-xx12WI THN 20-xx13WI G 5110 5110 10000 10000 H 2050 2050 5110 5110 K 0.8 2.5 9.5 12.5 +Vout L 2.5 2.5 2.5 2.5 THN 20-xx10WI TRIM TABLE Trim up (%) 1 2 VOUT (Volts)= 3.333 3.366 RU (KΩ)= 385.071 191.511 Trim down (%) 1 2 VOUT (Volts)= 3.267 3.234 RD (KΩ)= 116.719 54.779 3 3.399 126.990 3 3.201 34.133 4 3.432 94.730 4 3.168 23.810 5 3.465 75.374 5 3.135 17.616 6 3.498 62.470 6 3.102 13.486 7 3.531 53.253 7 3.069 10.537 8 3.564 46.340 8 3.036 8.325 9 3.597 40.963 9 3.003 6.604 10 3.630 36.662 10 2.970 5.228 6 5.300 40.533 6 4.700 35.423 7 5.350 34.450 7 4.650 29.340 8 5.400 29.888 8 4.600 24.778 9 5.450 26.339 9 4.550 21.229 10 5.500 23.500 10 4.500 18.390 6 12.720 29.612 6 11.280 116.834 7 12.840 24.652 7 11.160 97.985 8 12.960 20.932 8 11.040 83.848 9 13.080 18.038 9 10.920 72.853 10 13.200 15.723 10 10.800 64.057 6 15.900 22.668 6 14.100 123.779 7 16.050 18.700 7 13.950 103.938 8 16.200 15.723 8 13.800 89.057 9 16.350 13.409 9 13.650 77.483 10 16.500 11.557 10 13.500 68.223 THN 20-xx11WI Trim up (%) 1 2 VOUT (Volts)= 5.050 5.100 RU (KΩ)= 253.450 125.700 Trim down (%) 1 2 VOUT (Volts)= 4.950 4.900 RD (KΩ)= 248.340 120.590 3 5.150 83.117 3 4.850 78.007 4 5.200 61.825 4 4.800 56.715 5 5.250 49.050 5 4.750 43.940 THN 20-xx12WI Trim up (%) VOUT (Volts)= RU (KΩ)= Trim down (%) VOUT (Volts)= RD (KΩ)= 1 2 12.120 12.240 203.223 99.057 1 2 11.880 11.760 776.557 380.723 3 12.360 64.334 3 11.640 248.779 4 12.480 46.973 4 11.520 182.807 5 12.600 36.557 5 11.400 143.223 THN 20-xx13WI Trim up (%) VOUT (Volts)= RU (KΩ)= Trim down (%) VOUT (Volts)= RD (KΩ)= 1 2 15.150 15.300 161.557 78.223 1 2 14.850 14.700 818.223 401.557 Created by Traco Electronic AG Arp. 3 15.450 50.446 3 14.550 262.668 4 15.600 36.557 4 14.400 193.223 5 15.750 28.223 5 14.250 151.557 www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 33 / 39 Application Note 20W Single & Dual Output 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 + Clamp Suffix –HS: Heat Sink All dimensions in millimeters Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 34 / 39 Application Note 20W Single & Dual Output 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 –Vin. The switch can be open collector transistor, FET and Photo-Couple. The switch must be capable of sinking up to 1mA 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 20WI module is turned off at Low-level logic When THN 20WI 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 20WI module is turned on at Low-level logic Created by Traco Electronic AG Arp. www.tracopower.com When THN 20WI module is turned off at High-level logic th Date: May 31 , 2013 / Rev.: 1.1 / Page 35 / 39 Application Note 20W Single & Dual Output Mechanical Data PIN CONNECTION PIN THN 20WI SERIES 1 2 3 4 5 6 + INPUT - INPUT ON/OFF +VOUT TRIM -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 PRODUCT STANDARD TABLE Option Suffix Positive remote ON/OFF (Standard) 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 Output can be externally trimmed by using the method shown below. TRIM UP 6 TRIM DOWN 5 RU 5 RD 4 Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 36 / 39 Application Note 20W Single & Dual Output Recommended Pad Layout Soldering Considerations Lead free wave solder profile for THN 20WI-SERIES Zone Preheat zone Actual heating Reference Parameter. Rise temperature speed: Preheat temperature: Peak temperature: Peak time (T1+T2 time): 3°C/sec max. 100~130°C 250~260°C 4~6 sec Reference Solder: Sn-Ag-Cu; Sn-Cu Hand Welding: Soldering iron: Power 90W Welding Time: 2～4 sec Temperature: 380～400 ℃ Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 37 / 39 Application Note 20W Single & Dual Output Packaging Information 300 26.5 19 6 All dimensions in millimeters 10 PCS per TUBE Part Number Structure THN 10: 3.3Vdc 11: 5Vdc 12: 12Vdc Model Number THN 20-2410WI THN 20-2411WI THN 20-2412WI THN 20-2413WI THN 20-2422WI THN 20-2423WI THN 20-4810WI THN 20-4811WI THN 20-4812WI THN 20-4813WI THN 20-4822WI THN 20-4823WI 24 11 ..... 13: 15Vdc 22: ±12Vdc 23: ±15Vdc Input Range 9 – 36Vdc 9 – 36Vdc 9 – 36Vdc 9 – 36Vdc 9 – 36Vdc 9 – 36Vdc 18 – 75Vdc 18 – 75Vdc 18 – 75Vdc 18 – 75Vdc 18 – 75Vdc 18 – 75Vdc Output Voltage 3.3Vdc 5Vdc 12Vdc 15Vdc ±12Vdc ±15Vdc 3.3Vdc 5Vdc 12Vdc 15Vdc ±12Vdc ±15Vdc Output Current Full Load 4500mA 4000mA 1670mA 1330mA ±833mA ±667mA 4500mA 4000mA 1670mA 1330mA ±833mA ±667mA No Load (1) Input Current 6mA 6mA 6mA 6mA 6mA 6mA 6mA 6mA 6mA 6mA 6mA 6mA Efficiency (2) (%) 86 89 89 89 89 90 87 89 89 90 89 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. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 38 / 39 Application Note 20W Single & Dual Output 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 20-24xxWI modules and 2A for THN 20-48xxWI 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 20WI SERIES of DC/DC converters has been calculated using Bellcore TR-NWT-000332 Case I: 50% stress, Operating Temperature at 40°C (Ground fixed and controlled environment). The resulting figure for MTBF is 1’766’000 hours. MIL-HDBK 217F NOTICE2 FULL LOAD, Operating Temperature at 25°C. The resulting figure for MTBF is 553’000 hours. Created by Traco Electronic AG Arp. www.tracopower.com th Date: May 31 , 2013 / Rev.: 1.1 / Page 39 / 39