Application Note Features ◆ Rugged, compact metal case ◆ Screw terminal adaptor available TEP 75WI Series UL 60950-1 for easy connection ◆ Optional DIN-rail mounting kit ◆ Ultra wide 4:1 input voltage range u Full load operation up to 60°C with convection cooling ◆ Undervoltage lockout ◆ Reverse input voltage protection ◆ Input protection filter ◆ 3-year product warranty (Models pictured with chassis mount adaptor / optional heatsink) The TEP-75WI Series is a family of isolated high performance DC/DC converter modules with ultra-wide 4:1 input voltage ranges which come in a rugged, sealed metal case. These converters are suitable for a wide range of applications, but the product is designed particularly also for industrial applications where often no PCB mounting is possible but the module has to be mounted on a chassis. Four threaded M3 inserts in the module makes chassis mount or attachment of a heatsink for optimal thermal management very simple. For easy connection there is also an unique adaptor available with screw terminals. A very high efficiency allows an operating temperature up to +60°C with natural convection cooling without power derating. Further features include output voltage trimming, Remote On/Off and under voltage lockout. The very wide input voltage range and reverse input voltage protection make these converters also an interesting solution for battery operated systems. Table of contents Output Specification Input Specification General Specification Environmental Specification EMC characteristic Characteristic Curves Testing Configurations EMI Considerations Output Voltage Adjustment Remote Sense Input Source Impedance Output Over Current Protection Short Circuitry Protection http://www.tracopower.com P2 P3 P5 P6 P6 P7 P49 P50 P55 P57 P57 P58 P58 Output Over Voltage Protection Over Temperature Protection Thermal Considerations Heat-Sink Considerations Remote ON/OFF Control Mechanical Data Recommended Pad Layout Soldering Considerations Packaging Information Part Number Structure Safety and Installation Instruction MTBF and Reliability P58 P58 P59 P60 P61 P62 P65 P66 P67 P68 P69 P69 Page 1 of 69 Application Note TEP 75WI Series Output Specification Parameter Device Min Typ Max Unit TEP 75-xx10WI TEP 75-xx11WI TEP 75-xx12WI TEP 75-xx13WI TEP 75-xx15WI TEP 75-xx16WI TEP 75-xx18WI 3.267 4.95 11.88 14.85 23.76 27.72 47.52 3.3 5 12 15 24 28 48 3.333 5.05 12.12 15.15 24.24 28.28 48.48 VDC VDC VDC VDC VDC VDC VDC Voltage Adjustability (see page 55) All -20 +10 % Output Regulation Line (Vin(min) to Vin(max) at Full Load) Load (0% to 100% of Full Load) All All ±0.1 ±0.1 ±0.2 ±0.2 % % TEP 75-xx10WI TEP 75-xx11WI TEP 75-xx12WI TEP 75-xx13WI TEP 75-xx15WI TEP 75-xx16WI TEP 75-xx18WI 75 75 100 100 200 200 300 100 100 125 125 250 250 350 mVp-p mVp-p mVp-p mVp-p mVp-p mVp-p mVp-p +0.02 %/K 5 % Vout Output Voltage (Vin = Vin(nom) , Full Load , TA = 25C°) Output Ripple & Noise (Vin = Vin(nom) , Full Load , TA=25C°). Peak to Peak (5Hz to 20MHz bandwidth) Measured with a ripple &noise test board: COUT, ext. = 4.7μF 50V 1812 X7R MLCC COUT, ext. = 2.2μF 100V 1812 X7R MLCC Temperature Coefficient All Output Voltage Overshoot (Vin = Vin(min) to Vin(max) , Full Load , TA=25C°) All Dynamic Load Response (Vin = Vin(nom) , TA=25C°) Load step change between 75% to 100% of Full Load Peak Deviation Setting Time (Vout < 10% peak deviation) http://www.tracopower.com -0.02 0 TEP 75-xx10WI TEP 75-xx11WI TEP 75-xx12WI TEP 75-xx13WI TEP 75-xx15WI TEP 75-xx16WI TEP 75-xx18WI 200 200 350 400 950 950 1500 mV mV mV mV mV mV mV All 200 μS Page 2 of 69 Application Note TEP 75WI Series Output Specification (continued) Parameter Output Current Output Capacitor Load Output Over Voltage Protection (Hiccup Mode) Output Over Current Protection (Hiccup Mode) Device Min TEP 75-xx10WI TEP 75-xx11WI TEP 75-xx12WI TEP 75-xx13WI TEP 75-xx15WI TEP 75-xx16WI TEP 75-xx18WI 0 0 0 0 0 0 0 TEP 75-xx10WI TEP 75-xx11WI TEP 75-xx12WI TEP 75-xx13WI TEP 75-xx15WI TEP 75-xx16WI TEP 75-xx18WI Max Unit 20.0 15.0 6.3 5.0 3.2 2.7 1.6 A A A A A A A 60600 30000 5250 3330 1330 960 330 μF μF μF μF μF μF μF VDC VDC VDC VDC VDC VDC VDC TEP 75-xx10WI TEP 75-xx11WI TEP 75-xx12WI TEP 75-xx13WI TEP 75-xx15WI TEP 75-xx16WI TEP 75-xx18WI 3.795 5.75 13.80 17.25 27.60 32.20 55.20 4.29 6.50 15.60 19.50 31.20 36.40 62.40 TEP 75-24xxWI TEP 75-48xxWI 110 140 TEP 75-72xxWI Output Short Circuit Protection (Hiccup Mode) Typ % FL 150 All Automatics recovery Input Specification Parameter Operating Input Voltage Input Voltage Continuous Transient (100mS maximum) Input Standby Current (Vin = Vin(nom) , No Load , TA=25C°) http://www.tracopower.com Device Min Typ Max Unit TEP 75-24xxWI TEP 75-48xxWI TEP 75-72xxWI 9 18 43 24 48 110 36 75 160 VDC VDC VDC 40 80 160 50 100 185 VDC VDC VDC VDC VDC VDC TEP 75-24xxWI TEP 75-48xxWI TEP 75-72xxWI TEP 75-24xxWI TEP 75-48xxWI TEP 75-72xxWI TEP 75-2410WI TEP 75-2411WI TEP 75-2412WI TEP 75-2413WI TEP 75-2415WI TEP 75-2416WI TEP 75-2418WI TEP 75-4810WI TEP 75-4811WI 85 120 185 185 85 85 85 60 60 mA mA mA mA mA mA mA mA mA Page 3 of 69 Application Note TEP 75WI Series Input Specification (continued) Parameter Device Min Typ Max Unit TEP 75-4812WI TEP 75-4813WI TEP 75-4815WI TEP 75-4816WI TEP 75-4818WI TEP 75-7210WI TEP 75-7211WI TEP 75-7212WI TEP 75-7213WI TEP 75-7215WI TEP 75-7216WI TEP 75-7218WI 90 50 50 50 50 10 10 10 10 10 10 10 mA mA mA mA mA mA mA mA mA mA mA All 50 mAp-p Power up TEP 75-24xxWI TEP 75-48xxWI TEP 75-72xxWI 25 25 60 40 40 80 mS mS mS Remote ON/OFF TEP 75-24xxWI TEP 75-48xxWI TEP 75-72xxWI 25 25 60 40 40 80 mS mS mS 0 3 1.2 12 VDC VDC 3 0 12 1.2 1 VDC VDC mA mA 9 18 43 VDC VDC VDC Input reflected ripple current (see page 49) (5 to 20MHz, 12μH source impedance) Start Up Time (Vin = Vin(nom) and constant resistive load) Remote ON/OFF (see page 61) (The CTRL pin voltage is referenced to -INPUT) Negative logic (Standard) : Device code without Suffix DC-DC ON (Short) DC-DC OFF (Open) Positive logic (Option) : Device code with Suffix “-P” DC-DC ON (Open) DC-DC OFF (Short) Remote Off state Input Current Input Current of Remote Control Pin All -0.5 Under Voltage Lockout Turn-on Threshold TEP 75-24xxWI TEP 75-48xxWI TEP 75-72xxWI Under Voltage Lockout Turn-off Threshold TEP 75-24xxWI TEP 75-48xxWI TEP 75-72xxWI http://www.tracopower.com 3 7.5 16 36 VDC VDC VDC Page 4 of 69 Application Note TEP 75WI Series General Specification Parameter Efficiency (Vin = Vin(nom) , Full Load , TA=25C°) Device Min Typ Max Unit 87 88 88 88 87 87 87 88 90 90 89 88 88 87 89 91 91 91 90 90 90 TEP 75-2410WI TEP 75-2411WI TEP 75-2412WI TEP 75-2413WI TEP 75-2415WI TEP 75-2416WI TEP 75-2418WI TEP 75-4810WI TEP 75-4811WI TEP 75-4812WI TEP 75-4813WI TEP 75-4815WI TEP 75-4816WI TEP 75-4818WI TEP 75-7210WI TEP 75-7211WI TEP 75-7212WI TEP 75-7213WI TEP 75-7215WI TEP 75-7216WI TEP 75-7218WI % % % % % % % % % % % % % % % % % % % % % Isolation voltage (Basic Insulation)(1 minute) Input to Output Input (Output) to Case All 2250 1600 VDC VDC Isolation resistance All 1 GΩ Isolation capacitance All Switching Frequency All Weight All 97 g MTBF Bellcore TR-NWT-000332, TC = 40C°, MIL-HDBK-217F All 1.010×106 7.416×104 hours hours Case material TEP 75-24xxWI TEP 75-48xxWI TEP 75-72xxWI Metal Metal Aluminum base-plate with plastic case Base material TEP 75-24xxWI TEP 75-48xxWI FR4 PCB FR4 PCB Potting material All Silicon (UL94-V0) Dimensions All 2.40 X 2.28 X 0.50 (61.0×57.9×12.7) http://www.tracopower.com 270 300 2500 pF 330 KHz Inch (mm) Page 5 of 69 Application Note TEP 75WI Series Environmental Specification Model Min Max Unit Operating ambient temperature (with derating) * Parameter All -40 Typ 85 C° Operating case temperature All -40 105 C° Storage temperature All -55 125 C° Over temperature protection (see page 58) All Thermal impedance without Heat-sink With 0.24” Height Heat-sink All With 0.45” Height Heat-sink 115 C° 6.7 K/ Watt 5.4 K/ Watt 4.7 Relative humidity All 5 K/ Watt 95 Thermal shock MIL-STD-810F Vibration MIL-STD-810F % RH * Test condition with vertical direction by natural convection (20FLM) EMC characteristic Environmental Phenomena EMI Standard (see page 50) Option TF Basic Standard Severity Performance Criteria EN55011、EN55022 EN55011、EN55022 ESD EN61000-4-2 Radiated immunity EN61000-4-3 Fast transient EN61000-4-4 Surge EN61000-4-5 Conducted immunity EN61000-4-6 Class A Class A Air Contact EN55024 EN50155 ±8KV ±6KV A 20V/m A ±2KV A ±1KV ±2KV A A 10Vr.m.s A ** The TEP 75WI series meets EMC characteristics only with external components connected before the input pin to the converter. If customer only need to meet EN61000-4-4, EN61000-4-5, an external input filter capacitor is required. Recommended 1 pcs of aluminum electrolytic capacitor (Nippon Chemi-con KY series, 220μF/100V, ESR 48mΩ) to connect in parallel. Recommended 2 pcs of aluminum electrolytic capacitor (Nippon Chemi-con KXJ series, 150μF/200V) to connect in parallel. http://www.tracopower.com Page 6 of 69 Application Note TEP 75WI Series Characteristic Curves 16 95.0 92.5 90.0 87.5 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 65.0 62.5 60.0 57.5 55.0 52.5 50.0 Power Dissipation(W) EFFICIENCY(%) All test conditions are at 25C°.The figures are identical for TEP 75-2410WI Vin= 9V Vin= 12V 30 40 50 60 % of FULL LOAD 70 80 90 13 Vin= 24V 12 11 Vin= 36V Vin= 12V 10 9 8 7 6 5 4 2 1 Vin= 36V 20 Vin= 9V 3 Vin= 24V 10 15 14 100 Efficiency versus Output Current 0 10 20 30 40 50 60 % of FULL LOAD 70 80 90 100 Power Dissipation versus Output Current 95.0 92.5 90.0 87.5 EFFICIENCY(%) 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 Iout= 100% F.L 65.0 Iout= 50% F.L 62.5 Iout= 25% F.L 60.0 9 12 15 18 21 24 INPUT VOLTAGE(V) 27 30 33 36 Efficiency versus Input Voltage. Full Load Derating Output Current Versus Ambient Temperature with 0.24” Heat-Sink and Airflow , Vin = Vin(nom) http://www.tracopower.com Derating Output Current versus Ambient Temperature with Airflow , Vin = Vin(nom) Derating Output Current Versus Ambient Temperature with 0.45” Heat-Sink and Airflow , Vin = Vin(nom) Page 7 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25C°.The figures are identical for TEP 75-2410WI (continued) 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 Vo 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 http://www.tracopower.com Page 8 of 69 Application Note TEP 75WI Series Characteristic Curves 16 95.0 92.5 90.0 87.5 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 65.0 62.5 60.0 57.5 55.0 52.5 50.0 Power Dissipation(W) EFFICIENCY(%) All test conditions are at 25C°.The figures are identical for TEP 75-2411WI Vin= 9V Vin= 12V 30 40 50 60 % of FULL LOAD 70 80 90 13 Vin= 24V 12 11 Vin= 36V Vin= 12V 10 9 8 7 6 5 4 2 1 Vin= 36V 20 Vin= 9V 3 Vin= 24V 10 15 14 100 Efficiency versus Output Current 0 10 20 30 40 50 60 % of FULL LOAD 70 80 90 100 Power Dissipation versus Output Current 95.0 92.5 90.0 87.5 EFFICIENCY(%) 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 Iout= 100% F.L 65.0 Iout= 50% F.L 62.5 Iout= 25% F.L 60.0 9 12 15 18 21 24 INPUT VOLTAGE(V) 27 30 33 36 Efficiency versus Input Voltage. Full Load Derating Output Current Versus Ambient Temperature with 0.24” Heat-Sink and Airflow , Vin = Vin(nom) http://www.tracopower.com Derating Output Current versus Ambient Temperature with Airflow , Vin = Vin(nom) Derating Output Current Versus Ambient Temperature with 0.45” Heat-Sink and Airflow , Vin = Vin(nom) Page 9 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25C°.The figures are identical for TEP 75-2411WI (continued) 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 Vo 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 http://www.tracopower.com Page 10 of 69 Application Note TEP 75WI Series Characteristic Curves 16 95.0 92.5 90.0 87.5 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 65.0 62.5 60.0 57.5 55.0 52.5 50.0 Power Dissipation(W) EFFICIENCY(%) All test conditions are at 25C°.The figures are identical for TEP 75-2412WI Vin= 9V Vin= 12V 30 40 50 60 % of FULL LOAD 70 80 90 13 Vin= 24V 12 11 Vin= 36V Vin= 12V 10 9 8 7 6 5 4 2 1 Vin= 36V 20 Vin= 9V 3 Vin= 24V 10 15 14 100 Efficiency versus Output Current 0 10 20 30 40 50 60 % of FULL LOAD 70 80 90 100 Power Dissipation versus Output Current 95.0 92.5 90.0 87.5 EFFICIENCY(%) 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 Iout= 100% F.L 65.0 Iout= 50% F.L 62.5 Iout= 25% F.L 60.0 9 12 15 18 21 24 INPUT VOLTAGE(V) 27 30 33 36 Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow , Vin = Vin(nom) Derating Output Current Versus Ambient Temperature with 0.24” Heat-Sink and Airflow , Vin = Vin(nom) Derating Output Current Versus Ambient Temperature with 0.45” Heat-Sink and Airflow , Vin = Vin(nom) http://www.tracopower.com Page 11 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25C°.The figures are identical for TEP 75-2412WI (continued) 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 Vo 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 http://www.tracopower.com Page 12 of 69 Application Note TEP 75WI Series Characteristic Curves 16 95.0 92.5 90.0 87.5 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 65.0 62.5 60.0 57.5 55.0 52.5 50.0 Power Dissipation(W) EFFICIENCY(%) All test conditions are at 25C°.The figures are identical for TEP 75-2413WI Vin= 9V Vin= 12V 30 40 50 60 % of FULL LOAD 70 80 90 13 Vin= 24V 12 11 Vin= 36V Vin= 12V 10 9 8 7 6 5 4 2 1 Vin= 36V 20 Vin= 9V 3 Vin= 24V 10 15 14 100 Efficiency versus Output Current 0 10 20 30 40 50 60 % of FULL LOAD 70 80 90 100 Power Dissipation versus Output Current 95.0 92.5 90.0 87.5 EFFICIENCY(%) 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 Iout= 100% F.L 65.0 Iout= 50% F.L 62.5 Iout= 25% F.L 60.0 9 12 15 18 21 24 INPUT VOLTAGE(V) 27 30 33 36 Efficiency versus Input Voltage. Full Load Derating Output Current versus Ambient Temperature with Airflow , Vin = Vin(nom) Derating Output Current Versus Ambient Temperature with 0.24” Heat-Sink and Airflow , Vin = Vin(nom) Derating Output Current Versus Ambient Temperature with 0.45” Heat-Sink and Airflow , Vin = Vin(nom) http://www.tracopower.com Page 13 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25C°.The figures are identical for TEP 75-2415WI (continued) 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 Vo 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 http://www.tracopower.com Page 14 of 69 Application Note TEP 75WI Series Characteristic Curves 16 95.0 92.5 90.0 87.5 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 65.0 62.5 60.0 57.5 55.0 52.5 50.0 Power Dissipation(W) EFFICIENCY(%) All test conditions are at 25C°.The figures are identical for TEP 75-2415WI Vin= 9V Vin= 12V 30 40 50 60 % of FULL LOAD 70 80 90 13 Vin= 24V 12 11 Vin= 36V Vin= 12V 10 9 8 7 6 5 4 2 1 Vin= 36V 20 Vin= 9V 3 Vin= 24V 10 15 14 100 Efficiency versus Output Current 0 10 20 30 40 50 60 % of FULL LOAD 70 80 90 100 Power Dissipation versus Output Current 95.0 92.5 90.0 87.5 EFFICIENCY(%) 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 Iout= 100% F.L 65.0 Iout= 50% F.L 62.5 Iout= 25% F.L 60.0 9 12 15 18 21 24 INPUT VOLTAGE(V) 27 30 33 36 Efficiency versus Input Voltage. Full Load Derating Output Current Versus Ambient Temperature with 0.24” Heat-Sink and Airflow , Vin = Vin(nom) http://www.tracopower.com Derating Output Current versus Ambient Temperature with Airflow , Vin = Vin(nom) Derating Output Current Versus Ambient Temperature with 0.45” Heat-Sink and Airflow , Vin = Vin(nom) Page 15 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25C°.The figures are identical for TEP 75-2415WI (continued) 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 Vo 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 http://www.tracopower.com Page 16 of 69 Application Note TEP 75WI Series Characteristic Curves 16 95.0 92.5 90.0 87.5 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 65.0 62.5 60.0 57.5 55.0 52.5 50.0 Power Dissipation(W) EFFICIENCY(%) All test conditions are at 25C°.The figures are identical for TEP 75-2416WI Vin= 9V Vin= 12V 30 40 50 60 % of FULL LOAD 70 80 90 13 Vin= 24V 12 11 Vin= 36V Vin= 12V 10 9 8 7 6 5 4 2 1 Vin= 36V 20 Vin= 9V 3 Vin= 24V 10 15 14 100 Efficiency versus Output Current 0 10 20 30 40 50 60 % of FULL LOAD 70 80 90 100 Power Dissipation versus Output Current 95.0 92.5 90.0 87.5 EFFICIENCY(%) 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 Iout= 100% F.L 65.0 Iout= 50% F.L 62.5 Iout= 25% F.L 60.0 9 12 15 18 21 24 INPUT VOLTAGE(V) 27 30 33 36 Efficiency versus Input Voltage. Full Load Derating Output Current Versus Ambient Temperature with 0.24” Heat-Sink and Airflow , Vin = Vin(nom) http://www.tracopower.com Derating Output Current versus Ambient Temperature with Airflow , Vin = Vin(nom) Derating Output Current Versus Ambient Temperature with 0.45” Heat-Sink and Airflow , Vin = Vin(nom) Page 17 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25C°.The figures are identical for TEP 75-2416WI (continued) 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 Vo 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 http://www.tracopower.com Page 18 of 69 Application Note TEP 75WI Series Characteristic Curves 16 95.0 92.5 90.0 87.5 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 65.0 62.5 60.0 57.5 55.0 52.5 50.0 Power Dissipation(W) EFFICIENCY(%) All test conditions are at 25C°.The figures are identical for TEP 75-2418WI Vin= 9V Vin= 12V 30 40 50 60 % of FULL LOAD 70 80 90 13 Vin= 24V 12 11 Vin= 36V Vin= 12V 10 9 8 7 6 5 4 2 1 Vin= 36V 20 Vin= 9V 3 Vin= 24V 10 15 14 100 Efficiency versus Output Current 0 10 20 30 40 50 60 % of FULL LOAD 70 80 90 100 Power Dissipation versus Output Current 95.0 92.5 90.0 87.5 EFFICIENCY(%) 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 Iout= 100% F.L 65.0 Iout= 50% F.L 62.5 Iout= 25% F.L 60.0 9 12 15 18 21 24 INPUT VOLTAGE(V) 27 30 33 36 Efficiency versus Input Voltage. Full Load Derating Output Current Versus Ambient Temperature with 0.24” Heat-Sink and Airflow , Vin = Vin(nom) http://www.tracopower.com Derating Output Current versus Ambient Temperature with Airflow , Vin = Vin(nom) Derating Output Current Versus Ambient Temperature with 0.45” Heat-Sink and Airflow , Vin = Vin(nom) Page 19 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25C°.The figures are identical for TEP 75-2418WI (continued) 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 Vo 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 http://www.tracopower.com Page 20 of 69 Application Note TEP 75WI Series Characteristic Curves 16 95.0 92.5 90.0 87.5 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 65.0 62.5 60.0 57.5 55.0 52.5 50.0 Power Dissipation(W) EFFICIENCY(%) All test conditions are at 25C°.The figures are identical for TEP 75-4810WI Vin= 18V Vin= 24V 30 40 50 60 % of FULL LOAD 70 80 90 13 Vin= 48V 12 11 Vin= 75V Vin= 24V 10 9 8 7 6 5 4 2 1 Vin= 75V 20 Vin= 18V 3 Vin= 48V 10 15 14 100 Efficiency versus Output Current 0 10 20 30 40 50 60 % of FULL LOAD 70 80 90 100 Power Dissipation versus Output Current 95.0 92.5 90.0 87.5 EFFICIENCY(%) 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 Iout= 100% F.L 65.0 Iout= 50% F.L 62.5 Iout= 25% F.L 60.0 18 24 30 36 42 48 54 INPUT VOLTAGE(V) 60 66 72 75 Efficiency versus Input Voltage. Full Load Derating Output Current Versus Ambient Temperature with 0.24” Heat-Sink and Airflow , Vin = Vin(nom) http://www.tracopower.com Derating Output Current versus Ambient Temperature with Airflow , Vin = Vin(nom) Derating Output Current Versus Ambient Temperature with 0.45” Heat-Sink and Airflow , Vin = Vin(nom) Page 21 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25C°.The figures are identical for TEP 75-4810WI (continued) 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 Vo 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 http://www.tracopower.com Page 22 of 69 Application Note TEP 75WI Series Characteristic Curves 16 95.0 92.5 90.0 87.5 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 65.0 62.5 60.0 57.5 55.0 52.5 50.0 Power Dissipation(W) EFFICIENCY(%) All test conditions are at 25C°.The figures are identical for TEP 75-4811WI Vin= 18V Vin= 24V 30 40 50 60 % of FULL LOAD 70 80 90 13 Vin= 48V 12 11 Vin= 75V Vin= 24V 10 9 8 7 6 5 4 2 1 Vin= 75V 20 Vin= 18V 3 Vin= 48V 10 15 14 100 Efficiency versus Output Current 0 10 20 30 40 50 60 % of FULL LOAD 70 80 90 100 Power Dissipation versus Output Current 95.0 92.5 90.0 87.5 EFFICIENCY(%) 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 Iout= 100% F.L 65.0 Iout= 50% F.L 62.5 Iout= 25% F.L 60.0 18 24 30 36 42 48 54 INPUT VOLTAGE(V) 60 66 72 75 Efficiency versus Input Voltage. Full Load Derating Output Current Versus Ambient Temperature with 0.24” Heat-Sink and Airflow , Vin = Vin(nom) http://www.tracopower.com Derating Output Current versus Ambient Temperature with Airflow , Vin = Vin(nom) Derating Output Current Versus Ambient Temperature with 0.45” Heat-Sink and Airflow , Vin = Vin(nom) Page 23 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25C°.The figures are identical for TEP 75-4811WI (continued) 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 Vo 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 http://www.tracopower.com Page 24 of 69 Application Note TEP 75WI Series Characteristic Curves 16 95.0 92.5 90.0 87.5 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 65.0 62.5 60.0 57.5 55.0 52.5 50.0 Power Dissipation(W) EFFICIENCY(%) All test conditions are at 25C°.The figures are identical for TEP 75-4812WI Vin= 18V Vin= 24V 30 40 50 60 % of FULL LOAD 70 80 90 13 Vin= 48V 12 11 Vin= 75V Vin= 24V 10 9 8 7 6 5 4 2 1 Vin= 75V 20 Vin= 18V 3 Vin= 48V 10 15 14 100 Efficiency versus Output Current 0 10 20 30 40 50 60 % of FULL LOAD 70 80 90 100 Power Dissipation versus Output Current 95.0 92.5 90.0 87.5 EFFICIENCY(%) 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 Iout= 100% F.L 65.0 Iout= 50% F.L 62.5 Iout= 25% F.L 60.0 18 24 30 36 42 48 54 INPUT VOLTAGE(V) 60 66 72 75 Efficiency versus Input Voltage. Full Load Derating Output Current Versus Ambient Temperature with 0.24” Heat-Sink and Airflow , Vin = Vin(nom) http://www.tracopower.com Derating Output Current versus Ambient Temperature with Airflow , Vin = Vin(nom) Derating Output Current Versus Ambient Temperature with 0.45” Heat-Sink and Airflow , Vin = Vin(nom) Page 25 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25C°.The figures are identical for TEP 75-4812WI (continued) 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 Vo 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 http://www.tracopower.com Page 26 of 69 Application Note TEP 75WI Series Characteristic Curves 16 95.0 92.5 90.0 87.5 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 65.0 62.5 60.0 57.5 55.0 52.5 50.0 Power Dissipation(W) EFFICIENCY(%) All test conditions are at 25C°.The figures are identical for TEP 75-4813WI Vin= 18V Vin= 24V 30 40 50 60 % of FULL LOAD 70 80 90 13 Vin= 48V 12 11 Vin= 75V Vin= 24V 10 9 8 7 6 5 4 2 1 Vin= 75V 20 Vin= 18V 3 Vin= 48V 10 15 14 100 Efficiency versus Output Current 0 10 20 30 40 50 60 % of FULL LOAD 70 80 90 100 Power Dissipation versus Output Current 95.0 92.5 90.0 87.5 EFFICIENCY(%) 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 Iout= 100% F.L 65.0 Iout= 50% F.L 62.5 Iout= 25% F.L 60.0 18 24 30 36 42 48 54 INPUT VOLTAGE(V) 60 66 72 75 Efficiency versus Input Voltage. Full Load Derating Output Current Versus Ambient Temperature with 0.24” Heat-Sink and Airflow , Vin = Vin(nom) http://www.tracopower.com Derating Output Current versus Ambient Temperature with Airflow , Vin = Vin(nom) Derating Output Current Versus Ambient Temperature with 0.45” Heat-Sink and Airflow , Vin = Vin(nom) Page 27 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25C°.The figures are identical for TEP 75-4813WI (continued) 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 Vo 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 http://www.tracopower.com Page 28 of 69 Application Note TEP 75WI Series Characteristic Curves 16 95.0 92.5 90.0 87.5 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 65.0 62.5 60.0 57.5 55.0 52.5 50.0 Power Dissipation(W) EFFICIENCY(%) All test conditions are at 25C°.The figures are identical for TEP 75-4815WI Vin= 18V Vin= 24V 30 40 50 60 % of FULL LOAD 70 80 90 13 Vin= 48V 12 11 Vin= 75V Vin= 24V 10 9 8 7 6 5 4 2 1 Vin= 75V 20 Vin= 18V 3 Vin= 48V 10 15 14 100 Efficiency versus Output Current 0 10 20 30 40 50 60 % of FULL LOAD 70 80 90 100 Power Dissipation versus Output Current 95.0 92.5 90.0 87.5 EFFICIENCY(%) 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 Iout= 100% F.L 65.0 Iout= 50% F.L 62.5 Iout= 25% F.L 60.0 18 24 30 36 42 48 54 INPUT VOLTAGE(V) 60 66 72 75 Efficiency versus Input Voltage. Full Load Derating Output Current Versus Ambient Temperature with 0.24” Heat-Sink and Airflow , Vin = Vin(nom) http://www.tracopower.com Derating Output Current versus Ambient Temperature with Airflow , Vin = Vin(nom) Derating Output Current Versus Ambient Temperature with 0.45” Heat-Sink and Airflow , Vin = Vin(nom) Page 29 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25C°.The figures are identical for TEP 75-4815WI (continued) 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 Vo 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 http://www.tracopower.com Page 30 of 69 Application Note TEP 75WI Series Characteristic Curves 16 95.0 92.5 90.0 87.5 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 65.0 62.5 60.0 57.5 55.0 52.5 50.0 Power Dissipation(W) EFFICIENCY(%) All test conditions are at 25C°.The figures are identical for TEP 75-4816WI Vin= 18V Vin= 24V 30 40 50 60 % of FULL LOAD 70 80 90 13 Vin= 48V 12 11 Vin= 75V Vin= 24V 10 9 8 7 6 5 4 2 1 Vin= 75V 20 Vin= 18V 3 Vin= 48V 10 15 14 100 Efficiency versus Output Current 0 10 20 30 40 50 60 % of FULL LOAD 70 80 90 100 Power Dissipation versus Output Current 95.0 92.5 90.0 87.5 EFFICIENCY(%) 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 Iout= 100% F.L 65.0 Iout= 50% F.L 62.5 Iout= 25% F.L 60.0 18 24 30 36 42 48 54 INPUT VOLTAGE(V) 60 66 72 75 Efficiency versus Input Voltage. Full Load Derating Output Current Versus Ambient Temperature with 0.24” Heat-Sink and Airflow , Vin = Vin(nom) http://www.tracopower.com Derating Output Current versus Ambient Temperature with Airflow , Vin = Vin(nom) Derating Output Current Versus Ambient Temperature with 0.45” Heat-Sink and Airflow , Vin = Vin(nom) Page 31 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25C°.The figures are identical for TEP 75-4816WI (continued) 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 Vo 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 http://www.tracopower.com Page 32 of 69 Application Note TEP 75WI Series Characteristic Curves 16 95.0 92.5 90.0 87.5 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 65.0 62.5 60.0 57.5 55.0 52.5 50.0 Power Dissipation(W) EFFICIENCY(%) All test conditions are at 25C°.The figures are identical for TEP 75-4818WI Vin= 18V Vin= 24V 30 40 50 60 % of FULL LOAD 70 80 90 13 Vin= 48V 12 11 Vin= 75V Vin= 24V 10 9 8 7 6 5 4 2 1 Vin= 75V 20 Vin= 18V 3 Vin= 48V 10 15 14 100 Efficiency versus Output Current 0 10 20 30 40 50 60 % of FULL LOAD 70 80 90 100 Power Dissipation versus Output Current 95.0 92.5 90.0 87.5 EFFICIENCY(%) 85.0 82.5 80.0 77.5 75.0 72.5 70.0 67.5 Iout= 100% F.L 65.0 Iout= 50% F.L 62.5 Iout= 25% F.L 60.0 18 24 30 36 42 48 54 INPUT VOLTAGE(V) 60 66 72 75 Efficiency versus Input Voltage. Full Load Derating Output Current Versus Ambient Temperature with 0.24” Heat-Sink and Airflow , Vin = Vin(nom) http://www.tracopower.com Derating Output Current versus Ambient Temperature with Airflow , Vin = Vin(nom) Derating Output Current Versus Ambient Temperature with 0.45” Heat-Sink and Airflow , Vin = Vin(nom) Page 33 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25C°.The figures are identical for TEP 75-4818WI (continued) 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 Vo 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 http://www.tracopower.com Page 34 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25℃.The figures are identical for TEP 75-7210WI Efficiency versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current Versus Ambient Temperature with 0.24” Heat-Sink and Airflow , Vin = Vin(nom) http://www.tracopower.com Power Dissipation versus Output Current Derating Output Current versus Ambient Temperature with Airflow , Vin = Vin(nom) Derating Output Current Versus Ambient Temperature with 0.45” Heat-Sink and Airflow , Vin = Vin(nom) Page 35 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25℃.The figures are identical for TEP 75-7210WI (continued) 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 Vo 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 http://www.tracopower.com Page 36 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25℃.The figures are identical for TEP 75-7211WI Efficiency versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current Versus Ambient Temperature with 0.24” Heat-Sink and Airflow , Vin = Vin(nom) http://www.tracopower.com Power Dissipation versus Output Current Derating Output Current versus Ambient Temperature with Airflow , Vin = Vin(nom) Derating Output Current Versus Ambient Temperature with 0.45” Heat-Sink and Airflow , Vin = Vin(nom) Page 37 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25℃.The figures are identical for TEP 75-7211WI (continued) 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 Vo 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 http://www.tracopower.com Page 38 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25℃.The figures are identical for TEP 75-7212WI Efficiency versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current Versus Ambient Temperature with 0.24” Heat-Sink and Airflow , Vin = Vin(nom) http://www.tracopower.com Power Dissipation versus Output Current Derating Output Current versus Ambient Temperature with Airflow , Vin = Vin(nom) Derating Output Current Versus Ambient Temperature with 0.45” Heat-Sink and Airflow , Vin = Vin(nom) Page 39 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25℃.The figures are identical for TEP 75-7212WI (continued) 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 Vo 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 http://www.tracopower.com Page 40 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25℃.The figures are identical for TEP 75-7213WI Efficiency versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current Versus Ambient Temperature with 0.24” Heat-Sink and Airflow , Vin = Vin(nom) http://www.tracopower.com Power Dissipation versus Output Current Derating Output Current versus Ambient Temperature with Airflow , Vin = Vin(nom) Derating Output Current Versus Ambient Temperature with 0.45” Heat-Sink and Airflow , Vin = Vin(nom) Page 41 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25℃.The figures are identical for TEP 75-7213WI (continued) 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 Vo 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 http://www.tracopower.com Page 42 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25℃.The figures are identical for TEP 75-7215WI Efficiency versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current Versus Ambient Temperature with 0.24” Heat-Sink and Airflow , Vin = Vin(nom) http://www.tracopower.com Power Dissipation versus Output Current Derating Output Current versus Ambient Temperature with Airflow , Vin = Vin(nom) Derating Output Current Versus Ambient Temperature with 0.45” Heat-Sink and Airflow , Vin = Vin(nom) Page 43 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25℃.The figures are identical for TEP 75-7215WI (continued) 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 Vo 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 http://www.tracopower.com Page 44 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25℃.The figures are identical for TEP 75-7216WI Efficiency versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current Versus Ambient Temperature with 0.24” Heat-Sink and Airflow , Vin = Vin(nom) http://www.tracopower.com Power Dissipation versus Output Current Derating Output Current versus Ambient Temperature with Airflow , Vin = Vin(nom) Derating Output Current Versus Ambient Temperature with 0.45” Heat-Sink and Airflow , Vin = Vin(nom) Page 45 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25℃.The figures are identical for TEP 75-7216WI (continued) 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 Vo 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 http://www.tracopower.com Page 46 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25℃.The figures are identical for TEP 75-7218WI Efficiency versus Output Current Efficiency versus Input Voltage. Full Load Derating Output Current Versus Ambient Temperature with 0.24” Heat-Sink and Airflow , Vin = Vin(nom) http://www.tracopower.com Power Dissipation versus Output Current Derating Output Current versus Ambient Temperature with Airflow , Vin = Vin(nom) Derating Output Current Versus Ambient Temperature with 0.45” Heat-Sink and Airflow , Vin = Vin(nom) Page 47 of 69 Application Note TEP 75WI Series Characteristic Curves All test conditions are at 25℃.The figures are identical for TEP 75-7218WI (continued) 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 Vo 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 http://www.tracopower.com Page 48 of 69 Application Note TEP 75WI Series Testing Configurations Input reflected-ripple current measurement test up TEP 75-24xxWI / TEP 75-48xxWI Component Value Voltage L1 12μH ---- C1 & C2 100μF 100V Component Value Voltage L1 12μH ---- C1 & C2 68μF 200V Reference ARLITECH : ATPI0705120 NIPPON CHEMICON : KY series EKY-101ELL101MK16S TEP 75-72xxWI Reference ARLITECH : ATPI0705120 Ruby-con: BXF series Peak to peak output ripple & noise measurement test up Device Component Value Voltage TEP 75-xx18WI C1 2.2μF 100V TDK : C4532X7R2A225M Reference others C1 4.7μF 50V TDK : C4532X7R1H475M Output voltage and efficiency measurement test up Note: All measurements are taken at the module terminals. http://www.tracopower.com V ×I Efficiency = OUT OUT V IN × I IN × 100% Page 49 of 69 Application Note TEP 75WI Series EMI considerations Suggested schematic for EN55022 conducted emission Class A limits Recommended Layout With Input Filter To meet conducted emissions EN55022 CLASS A needed the following components: TEP 75-24xxWI Component Value Voltage Reference C1、C3 100 μF 50 V Nippon chemi-con KY series C2、C4、C5 4.7 μF 50 V 1812 MLCC C6、C7、C8、C9、C10、C11 1000 pF 3 KV 1808 MLCC ---- Common Choke, P/N:TCK-072 Voltage Reference 100 V Nippon chemi-con KY series 1812 MLCC L1 156 μH ± 35% Component Value C1、C3 100 μF C2、C4、C5 2.2 μF 100 V C6、C7、 C8、C9、C10、C11 1000 pF 3 KV 1808 MLCC ---- Common Choke, P/N:TCK-067 TEP 75-48xxWI L1 620 μH ± 35% Note:1. Common mode choke have been define and show in page 54. 2. While testing, connect the CASE pin and four screw bolts to shield plane, the EMI could be reduced. http://www.tracopower.com Page 50 of 69 Application Note TEP 75WI Series EMI considerations Suggested schematic for EN55022 conducted emission Class A limits Recommended Layout With Input Filter To meet conducted emissions EN55022 CLASS A needed the following components: TEP 75-72xxWI Component Value Voltage Reference C1, C2 150 μF 200 V Nippon chemi-con KXJ series C6 1 μF 250 V 1812 MLCC C7, C8 1000 pF 3 KV 1808 MLCC L1 4.7 μH ± 20% ---- Inductor, P/N:TCK-099 Note:1. Inductor L1 has been defined and show in page 54. 2. While testing, connect the CASE pin and four screw bolts to shield plane, the EMI could be reduced. http://www.tracopower.com Page 51 of 69 Application Note TEP 75WI Series EMI considerations (continued) Suggested schematic for EN55022 conducted emission Class B limits Recommended Layout With Input Filter To meet conducted emissions EN55022 CLASS B needed the following components: TEP 75-24xxWI Component Value Voltage Reference C1、C5 100 μF 50 V Nippon chemi-con KY series C2、C3、C4、C6、C7 4.7 μF 50 V 1812 MLCC C8、C9、C14、C15 1000 pF 3 KV 1808 MLCC C10、C11、C12、C13 10 nF 2 KV 1812 MLCC L1、L2 305μH ± 35% ---- Common Choke, P/N:TCK-073 TEP 75-48xxWI Component C1、C5 C2、C3、C4、C6、C7 C8、C14、C15 C9 C10、C11、C12、C13 L1 L2 Value 100 μF 2.2 μF 1000 pF 4700 pF 10 nF 1186 μH ± 35% 156 μH ± 35% Voltage 100 V 100 V 3 KV 3 KV 2 KV ------- Reference Nippon chemi-con KY series 1812 MLCC 1808 MLCC 1812 MLCC 1812 MLCC Common Choke, P/N: TCK-064 Common Choke, P/N: TCK-072 Note:1. Common mode choke have been define and show in page 54. 2. While testing, connect the CASE pin and four screw bolts to shield plane, the EMI could be reduced. http://www.tracopower.com Page 52 of 69 Application Note TEP 75WI Series EMI considerations (continued) Suggested schematic for EN55022 conducted emission Class B limits Recommended Layout With Input Filter To meet conducted emissions EN55022 CLASS B needed the following components: TEP 75-72xxWI Component Value Voltage Reference C1, C2 150 μF 200 V Nippon chemi-con KXJ series C5, C6, C7, C8 1 μF 250 V 1812 MLCC C9, C10, C11, C12, C13, C14 1000 pF 3 KV 1808 MLCC L1 1186μH ± 35% ---- Common Choke, P/N:TCK-064 L2 4.7 μH ± 20% ---- Inductor, P/N: TCK-099 Note:1. Common mode choke and inductor have been defined and show in page 54. 2. While testing, connect the CASE pin and four screw bolts to shield plane, the EMI could be reduced. http://www.tracopower.com Page 53 of 69 Application Note TEP 75WI Series EMI considerations (continued) These common mode choke have been define as follow: ■ TCK-064 Inductance:1186μH±35% Impedance:21.56mΩ, max. Rated current:5.8A, max. ■ TCK-067 Inductance:620μH±35% Impedance:25mΩ, max. Rated current:7.5A, max. ■ TCK-072 Inductance:156μH±35% Impedance:15mΩ, max Rated current:11.3A, max. ■ TCK-073 Inductance:305μH±35% Impedance:20mΩ, max. Rated current:11.3A, max. Measurement Instrument (Test condition): ■ L:HP 4263B LCR Meter (100KHz / 100mV) ■ DCR:HIOKI 3540 mΩ HITESTER ■ IDC:Agilent 34401A Meter Recommended through hole:Φ1.0mm All dimensions in millimeters The inductor has been defined as follow: ■ TCK-099 Inductance:4.7μH±20% Impedance:23.3mΩ, typ. Rated current:5A, max. Measurement Instrument (Test condition): ■ L:HP 4263B LCR Meter (100KHz / 250mV) ■ DCR:HIOKI 3540 mΩ HITESTER ■ IDC:Agilent 34401A Meter http://www.tracopower.com Page 54 of 69 Application Note TEP 75WI Series Output Voltage Adjustment Output voltage is adjustable for 10% trim up or -20% trim down of nominal output voltage by connecting an external resistor between the TRIM pin and either the +SENSE or -SENSE pins. With an external resistor between the TRIM and -SENSE pin, the output voltage set point decreases. With an external resistor between the TRIM and +SENSE pin, the output voltage set point increases. Maximum output deviation is +10% inclusive of remote sense. (Please refer to page 57, remote sense) The value of external resistor can be obtained by equation or trim table shown in next page. The external TRIM resistor needs to be at least 1/8W resistors. TRIM UP http://www.tracopower.com TRIM DOWN Page 55 of 69 Application Note TEP 75WI Series Output Voltage Adjustment (continued) TRIM EQUATION (100 + ∆% ) 100 + 2∆% V RU = OUT − KΩ 1 . 225 ∆ % ∆% 100 RD = − 2 KΩ ∆% TRIM TABLE Trim up (%) VOUT (Volts)= RU (K Ohms)= TEP 75-xx10WI 1 2 3 3.333 170.082 4 3.366 85.388 5 3.399 57.156 6 3.432 43.041 7 3.465 34.571 8 3.498 28.925 9 3.531 24.892 10 3.564 21.867 3.597 19.515 3.630 17.633 TEP 75xx11WI Trim up (%) VOUT (Volts)= RU (K Ohms)= 1 Trim up (%) VOUT (Volts)= RU (K Ohms)= 1 Trim up (%) VOUT (Volts)= RU (K Ohms)= 1 Trim up (%) VOUT (Volts)= RU (K Ohms)= 1 2 5.05 310.245 3 5.10 156.163 4 5 5.15 104.803 6 5.20 79.122 7 5.25 63.714 8 5.30 53.442 9 5.35 46.105 10 5.40 40.602 5.45 36.322 5.50 32.898 TEP 75-xx12WI 2 12.12 887.388 3 12.24 447.592 4 12.36 300.993 5 12.48 227.694 6 12.60 183.714 7 12.72 154.395 8 12.84 133.452 9 12.96 117.745 10 13.08 105.528 13.20 95.755 TEP 75-xx13WI 2 15.15 1134.735 3 15.30 572.490 4 15.45 385.075 5 15.60 291.367 6 15.75 235.143 7 15.90 197.660 8 16.05 170.886 9 16.20 150.806 10 16.35 135.188 16.50 122.694 TEP 75-xx15WI 2 24.24 1876.776 3 24.48 947.184 4 24.72 637.320 5 24.96 482.388 6 25.20 389.429 7 25.44 327.456 8 25.68 283.190 9 25.92 249.990 10 26.16 224.168 26.40 203.510 TEP 75-xx16WI Trim up (%) 1 2 3 28.28 28.56 28.84 VOUT (Volts)= 749.429 Ru (K Ohms)= 2206.571 1113.714 4 5 29.12 567.286 6 29.40 458.000 7 29.68 385.143 8 29.96 333.102 9 30.24 294.071 10 30.52 263.714 30.80 239.429 TEP 75-xx18WI Trim up (%) 1 2 3 4 48.48 48.96 49.44 49.92 VOUT (Volts)= 991.776 Ru (K Ohms)= 3855.551 1946.367 1309.973 5 Trim down (%) 1 RD (K Ohms)= 98.000 2 5 Trim down (%) 12 6 50.40 800.857 7 50.88 673.578 8 51.36 582.665 9 51.84 514.480 10 52.32 461.447 52.80 419.020 All RD (K Ohms)= 11 7.091 http://www.tracopower.com 3 48.000 4 31.333 13 6.333 23.000 14 5.692 6 18.000 15 5.143 7 14.667 16 4.667 8 12.286 17 4.250 9 10.500 18 3.882 10 9.111 19 3.556 8.000 20 3.263 3.000 Page 56 of 69 Application Note TEP 75WI Series Remote Sense To minimum the effects of distribution losses by regulating the voltage at the Remote Sense pin. The voltage between the SENSE pin and OUTPUT pin must not exceed 10% of Vout, i.e. [ +OUTPUT to –OUTPUT ] – [ +SENSE to –SENSE ] < 10% Vout The voltage between +OUTPUT and –-OUTPUT terminals must not exceed the minimum output overvoltage protection threshold. This limit includes any increase in voltage due to remote sense compensation and trim function. If not using the remote sense feature to regulate the output at the point of load, then connect +SENSE to +OUTPUT and –SENSE to –OUTPUT. Remote Sense circuit configuration 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 π filter is recommended to minimize input reflected ripple current. The inductor is simulated source impedance of 12μH and capacitor is Nippon chemi-con KY series 100μF/100V. The capacitor must as close as possible to the input terminals of the power module for lower impedance. http://www.tracopower.com Page 57 of 69 Application Note TEP 75WI Series 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 110~140 percent of rated current for TEP 75WI 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. There are other ways of protecting the power supply when it is over-loaded, such as the maximum current limiting or current foldback methods. 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. The operation of hiccup is as follows. When the current sense circuit sees an over-current event, the controller shuts off the power supply for a given time and then tries to start up the power supply again. If the over-load condition has been removed, the power supply will start up and operate normally, otherwise, the controller will see another over-current event and shut off the power supply again, repeating the previous cycle. Hiccup operation has none of the drawbacks of the other two protection methods, although its circuit is more complicated because it requires a timing circuit. The excess heat due to overload lasts for only a short duration in the hiccup cycle, hence the junction temperature of the power devices is much lower. The hiccup operation can be done in various ways. For example, one can start hiccup operation any time an over-current event is detected, or prohibit hiccup during a designated start-up is usually larger than during normal operation and it is easier for an overcurrent event is detected, or prohibit hiccup during a designated start-up interval (usually a few milliseconds). The reason for the latter operation is that during start-up, the power supply needs to provide extra current to charge up the output capacitor. Thus the current demand during start-up is usually larger than during normal operation and it is easier for an over-current event to occur. If the power supply starts to hiccup once there is an over-current, it might never start up successfully. Hiccup mode protection will give the best protection for a power supply against over current situations, since it will limit the average current to the load at a low level, so reducing power dissipation and case temperature in the power devices. 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. Output Over Voltage Protection The output over-voltage protection consists of circuitry that monitors the voltage on the output terminals. If the voltage on the output terminals exceeds the over-voltage protection threshold, then the module enter the non-latch hiccup mode. Over Temperature Protection Sufficient cooling is needed for the power module and provides more reliable operation of the unit. If a fault condition occurs, the temperature of the unit will be higher. And will damage the unit. For protecting the power module, the unit includes over-temperature protection circuit. When the temperature of the case is to the protection threshold, the unit enters “Hiccup” mode. And it will auto restart when the temperature is down. http://www.tracopower.com Page 58 of 69 Application Note TEP 75WI Series 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. TOP VIEW http://www.tracopower.com Measurement shown in inches (mm) Page 59 of 69 Application Note TEP 75WI Series Heat-Sink Considerations 0.95 (11.4) (24.2) 0.45 Equip heat-sink for lower temperature and higher reliability of the module. Considering space and air-flow and choose which heatsink is needed. 2.28 (57.9) 2.40 (61.0) Order code: TEP-HS1 Includes heatsink with thermal pad and mounting screws To order modules with mounted heatsink ask factory. Top view Weight: 135g (4.76 oz) (Heatsink + Converter) Dimensions in Inch, () = mm Tolerances ±0.02 (±0.5) Pin pich tolerances ±0.01 (±0.25) Mounting hole pich tolerances ±0.01 (±0.25) http://www.tracopower.com Page 60 of 69 Application Note TEP 75WI Series Remote ON/OFF Control The CTRL 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 -INPUT. 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 CTRL pin signal maximum voltage is allowable leakage current of the switch at 12V is 0.5 mA. 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 CTRL pin is at high-level logic and low-level logic is turned off it. When TEP 75WI module is turned off at Low-level logic When TEP 75WI module is turned on at High-level logic b. The Negative logic structure turned on of the DC/DC module when the CTRL pin is at low-level logic and turned off when at highlevel logic. When TEP 75WI module is turned on at Low-level logic http://www.tracopower.com When TEP 75WI module is turned off at High-level logic Page 61 of 69 Application Note TEP 75WI Series Mechanical Data Of The Standard Product TEP 75WI module Pin-Out 1 5 2 6 1 7 2 Case 3 Remote On/Off 4 + Vin 5 – Vout 6 – Sense* 7 Trim 8 + Sense* 9 + Vout Pin 0.19 (4.8) 4 9 1.90 (48.26) 1.00 (25.40) 8 0.70 (17.78) 3 0.30 Bottom view (7.62) 2.40 (61.0) 2.00 (50.80) 4 x M3 THD (trough hole) Weight: 97g (3.42 oz) (0.6) (5.1) 0.023 0.5 (12.7) 0.20 2.28 (57.9) http://www.tracopower.com Pin diameter pin 5 & 9: 0.08 (2.0) Pin diameter other pins: 0.04 (1.0) – Vin *Sense line to be connected to the output either at the module or at the load under regard of polarity. Page 62 of 69 Application Note TEP 75WI Series Mechanical Data Of The Terminal Block Type TEP 75 module with chassis mount adabtor (suffix –CM or –CMF) For easy chassis mounting the converter modules can be supplied with an adaptor option consisting of a screw terminal connection board (soldered to converter pins) and a chassis mount adaptor. In addition this Chassis mount option is available with an EMI-filter (see EMI specification) (17.3) 0.68 1.1 (28.0) Suffix –CM: Chassis mount adaptor Weight: –CM 196 g (6.91 oz) (17.3) 0.68 1.53 (38.8) 2.00 (50.8) 2.40 (61.0) 0.14 2.126 (54.0) (3.5) screw 3 screw 1 1.60 (40.6) 3.071 (78.0) (3.5) 0.14 3.35 (85.0) 0.89 (22.2) screw 2 4 x Ø0.17 (4.3) http://www.tracopower.com Page 63 of 69 Application Note TEP 75WI Series 1.1 (28.0) Mechanical Data Of The Terminal Block Type (continued) (17.3) 0.68 TEP 75 module with chassis mount adabtor For easy chassis mounting the converter modules can be supplied with an adaptor option consisting of a screw terminal connection board (soldered to converter pins) and a chassis mount adaptor. In addition this Chassis mount option is available with an EMI-filter (see EMI specification) Suffix –CMF: Chassis mount adaptor with EMI filter (17.3) 0.68 1.53 (38.8) 2.00 (50.8) 2.40 (61.0) 0.14 2.126 (54.0) (3.5) screw 3 screw 1 Weight: –CMF 238 g (8.39 oz) Please note that adaptors cannot be ordered as seperate items but are factory assembled. Pin Connection 1.60 (40.6) 3.071 (78.0) (3.5) 0.14 3.35 (85.0) 0.89 (22.2) screw 2 4 x Ø0.17 (4.3) Dimensions in Inch, () = mm Tolerances ±0.02 (±0.5) Mounting hole pich tolerances ±0.01 (±0.25) 1 – Vin 2 Case 3 Remote On/Off 4 + Vin 5 – Vout 6 – Sense* 7 Trim 8 + Sense* 9 + Vout *Sense line to be connected to the output either at the module or at the load under regard of polarity. Order code: TEP-MK1 Includes DIN-rail clip and mounting screws. To order modules with mounted DIN-rail clip ask factory. http://www.tracopower.com Page 64 of 69 Application Note TEP 75WI Series Recommended Pad Layout All dimensions in inch (mm) Tolerances : x.xxx ± 0.010 (x.xx ± 0.25 ) PAD SIZE (LEAD FREE RECOMMENDED) +/- OUTPUT : THROUGH HOLE : Ø 2.3mm TOP VIEW PAD : Ø 2.9mm BOTTOM VIEW PAD : Ø 3.6mm OTHERS : THROUGH HOLE : Ø 1.3mm TOP VIEW PAD : Ø 1.9mm BOTTOM VIEW PAD : Ø 2.6mm http://www.tracopower.com Page 65 of 69 Application Note TEP 75WI Series Soldering Considerations Lead free wave solder profile for TEP 75WI series Zone Reference Parameter Preheat zone Rise temp. speed : 3C°/sec max. Preheat temp. : 100~130C° Actual heating Peak temp. : 250~260C° 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 Temp. : 380~400C° http://www.tracopower.com Page 66 of 69 Application Note TEP 75WI Series Packaging Information Dimensions shown in millimeters http://www.tracopower.com Page 67 of 69 Application Note TEP 75WI Series Part Number Structure TEP 75-4812WI Max. Output Power 75W Input Voltage 24: 9-36V 48: 18-75V 72: 43-160V Output Mode 1: Single 2: Dual (±) Output Voltage 0: 3.3V 1: 5.0V 2: 12V 3: 15V 5: 24V 6: 28V 8: 48V Feature WI: Wide Inupt Model Number Input Range Output Voltage Output Current max.load No load Input Current Efficiency (%) TEP 75-2410WI 9 ~ 36 VDC 3.3VDC 20 A 85mA 87 TEP 75-2411WI 9 ~ 36 VDC 5VDC 15 A 120mA 88 TEP 75-2412WI 9 ~ 36 VDC 12VDC 6.3 A 185mA 88 TEP 75-2413WI 9 ~ 36 VDC 15VDC 5A 185mA 88 TEP 75-2415WI 9 ~ 36 VDC 24VDC 3.2 A 85mA 87 TEP 75-2416WI 9 ~ 36 VDC 28VDC 2.7 A 85mA 87 TEP 75-2418WI 9 ~ 36 VDC 48VDC 1.6 A 85mA 87 TEP 75-4810WI 18 ~ 75 VDC 3.3VDC 20 A 60mA 88 TEP 75-4811WI 18 ~ 75 VDC 5VDC 15 A 60mA 90 TEP 75-4812WI 18 ~ 75 VDC 12VDC 6.3 A 90mA 90 TEP 75-4813WI 18 ~ 75 VDC 15VDC 5A 50mA 89 TEP 75-4815WI 18 ~ 75 VDC 24VDC 3.2 A 50mA 88 TEP 75-4816WI 18 ~ 75 VDC 28VDC 2.7 A 50mA 88 TEP 75-4818WI 18 ~ 75 VDC 48VDC 1.6 A 50mA 87 TEP 75-7210WI 43 ~ 160 VDC 3.3VDC 20 A 10mA 89 TEP 75-7211WI 43 ~ 160 VDC 5VDC 15 A 10mA 91 TEP 75-7212WI 43 ~ 160 VDC 12VDC 6.3 A 10mA 91 TEP 75-7213WI 43 ~ 160 VDC 15VDC 5A 10mA 91 TEP 75-7215WI 43 ~ 160 VDC 24VDC 3.2 A 10mA 90 TEP 75-7216WI 43 ~ 160 VDC 28VDC 2.7 A 10mA 90 TEP 75-7218WI 43 ~ 160 VDC 48VDC 1.6 A 10mA 90 Note 1. Typical value at nominal input and no load. Note 2. Typical value at nominal input and full load. http://www.tracopower.com Page 68 of 69 Application Note TEP 75WI Series Safety and Installation Instruction The TEP 75WI series has built in the protection function of the polarity reverse as the following figure. 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 15A for TEP 75-24xxWI, 8A for TEP 75-48xxWWI and 3.5A for TEP 75-72xxWI. 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 TEP 75WI series DC/DC converters has been calculated using Bellcore TR-NWT-000332 Case I: 50% stress, Operating Temperature at 40C° (Ground fixed and controlled environment ). The resulting figure for MTBF is 1.010×106 hours. MIL-HDBK 217F NOTICE2 FULL LOAD, Operating Temperature at 25C°. The resulting figure for MTBF is 7.416×104 hours. Specifications can be changed without notice! Make sure you are using the latest documentation, downloadable at www.tracopower.com www.tracopower.com Rev. June 15. 2015 Page 69 of 69