PXF40-48WS12

PXF40xxWSxx Single Output DC/DC Converter 9 to 36 Vdc and 18 to 75 Vdc input, 3.3 to 15 Vdc Single Output, 40W Features  Single output current up to 10A  40 watts maximum output power  4:1 ultra wide input voltage range of 9-36 and 18-75VDC  Six-sided continuous shield  Case grounding  High efficiency up to 88%  Low profile: 2.00 x 2.00 x 0.40 inch (50.8x50.8x10.2 mm )  Fixed switching frequency  RoHS directive compliant  Input to output isolation: 1600Vdc,min  Over-temperature protection  Input under-voltage protection  Output over-voltage protection  Over-current protection, auto-recovery  Output short circuit protection, auto-recovery  Remote ON/OFF Applications  Wireless Network  Telecom/Datacom  Industry Control System  Measurement Equipment  Semiconductor Equipment Options  Heat sinks available for extended operation  Remote ON/OFF logic configuration General Description The PXF40-xxWSxx single output offers 40 watts of output power from a 2.00 x 2.00 x 0.4 inch package. This series with 4:1 ultra wide input voltage of 9-36VDC and 18-75VDC, features 1600VDC of isolation, short-circuit,over-voltage and over-temperature protection, as well as six sided shielding. All models are particularly suited for telecommunications, industrial, mobile telecom and test equipment applications. Table of Contents Absolute Maximum Rating Output Specification Input Specification General Specification Characteristic Curves Test Configurations EMC Considerations Input Source Impedance Output Over Current Protection Output Over Voltage Protection Thermal Consideration P2 P2 P3 P4 P5 P21 P22 P24 P24 P24 P25 Heat Sink Consideration Remote ON/OFF Control Mechanical Data Recommended Pad Layout Output Voltage Adjustment Remote Sense Application Circuit Soldering Consideration Packaging Information Part Number Structure Safety and Installation Instruction MTBF and Reliability P25 P26 P27 P27 P28 P29 P29 P30 P30 P31 P31 DataSheet 40W, Single Output Absolute Maximum Ratings Parameter Model Input Voltage Continuous Transient (100ms) Operating Ambient Temperature (with derating) Operating Case Temperature Storage Temperature 24WSxx 48WSxx 24WSxx 48WSxx All All All Min Max Unit 36 75 50 100 105 105 125 -40 -55 VDC °C °C °C Output Specifications Parameter Output Voltage (Vin = Vin(nom) ; Full Load ; TA=25°C) Voltage Adjustability Model Min Typ Max xxWS3P3 3.267 3.3 3.333 Unit xxWS05 4.95 5 5.05 xxWS12 11.88 12 12.12 xxWS15 14.85 15 15.15 All -10 +10 % All -0.2 +0.2 % -0.5 +0.5 VDC Output Regulation Line (Vin(min) to Vin(max) at Full Load) Load (Min. to 100% of Full Load) Output Ripple & Noise Peak-to-Peak (20MHz bandwidth) xxWS3P3 50 xxWS05 50 xxWS12 75 xxWS15 Temperature Coefficient Output Voltage Overshoot (Vin(min) to Vin(max) ; Full Load ; TA=25°C) All mVp-p 75 -0.02 All +0.02 %/°C 3 % VOUT 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 Output Over Voltage Protection (Zener diode clamp) All 250 mV All 250 μS xxWS3P3 0 10000 xxWS05 0 8000 xxWS12 50 3333 xxWS15 50 2666 xxWS3P3 3.9 xxWS05 6.2 xxWS12 15 xxWS15 18 Output Over Current Protection All Output Short Circuit Protection All mA VDC 150 % FL. Hiccup, automatic recovery VER:00 Page 2 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output Input Specification Parameter Operating Input Voltage Input Current (Maximum value at Vin = Vin(nom); Full Load) 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 (5 to 20MHz, 12μH Source Impedance) Model Min Typ Max 24WSxx 9 24 36 48WSxx 18 48 75 24WS3P3 1677 24WS05 2008 24WS12 2008 24WS15 2008 48WS3P3 838 48WS05 992 48WS12 1004 48WS15 1004 24WS3P3 80 24WS05 100 24WS12 50 24WS15 50 48WS3P3 60 48WS05 65 48WS12 30 48WS15 30 9 48WSxx 18 8 48WSxx 16 All 20 VDC mA mA 24WSxx 24WSxx Unit VDC VDC mAp-p Start Up Time (Vin = Vin(nom) and Constant Resistive Load) Power Up 20 All Remote ON/OFF mS 20 Remote ON/OFF Control (The ON/OFF pin voltage is referenced to -VIN) Negative Logic DC-DC ON(Short) DC-DC OFF(Open) Positive Logic All DC-DC ON(Open) DC-DC OFF(Short) Remote Off Input Current Input Current of Remote Control Pin 0 1.2 3 12 3 12 0 1.2 24WSxx 10 48WSxx 5 All -0.5 VDC mA 0.5 mA VER:00 Page 3 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output General Specifications Parameter Efficiency (Vin = Vin(nom) ; Full Load ; TA=25°C) Model Min Typ 24WS3P3 86 24WS05 87 24WS12 87 24WS15 87 48WS3P3 86 48WS05 88 48WS12 87 48WS15 87 Max Unit % Isolation Voltage Input to Output All Input (Output) to Case VDC 1600 1600 Isolation Resistance All 1 GΩ Isolation Capacitance All Switching Frequency All 300 KHz Weight All 60 g All 1.105×106 2500 pF MTBF(See Page 31) Bellcore TR-NWT-000332, TC=40°C 1.511×105 MIL-HDBK-217F Over Temperature Protection All 110 hours °C VER:00 Page 4 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output Characteristic Curves All test conditions are at 25°C.The figures are for PXF40-24WS3P3. Efficiency Versus Output Current Efficiency Versus Input Voltage. Full Load Power Dissipation Versus Output Current Derating OutputCurrentVersusAmbientTemperature andAirflow Vin = Vin(nom) Derating OutputCurrentVersusAmbientTemperature with Heat-Sink andAirflow, Vin = Vin(nom) VER:00 Page 5 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C.The figures are for PXF40-24WS3P3. Typical Output Ripple and Noise. Transient Response to Dynamic Load Change from Vin = Vin(nom), Full Load 100% to 75% to 100% of Full Load ; Vin = Vin(nom) Typical Input Start-Up and Output Rise Characteristic Using ON/OFF Voltage Start-Up and Vo Rise Characteristic Vin = Vin(nom), Full Load Vin = Vin(nom), Full Load Conduction Emission of EN55022 Class A Conduction Emission of EN55022 Class B Vin = Vin(nom), Full Load Vin = Vin(nom), Full Load VER:00 Page 6 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C.The figures are for PXF40-24WS05. Efficiency Versus Output Current Efficiency Versus Input Voltage. Full Load Power Dissipation Versus Output Current Derating OutputCurrentVersusAmbientTemperature andAirflow Vin=Vin(nom) Derating OutputCurrentVersusAmbientTemperature with Heat-Sink andAirflow, Vin = Vin(nom) VER:00 Page 7 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C.The figures are for PXF40-24WS05. Typical Output Ripple and Noise. Transient Response to Dynamic Load Change from Vin=Vin(nom), Full Load 100% to 75% to 100% of Full Load ; Vin=Vin(nom) Typical Input Start-Up and Output Rise Characteristic Using ON/OFF Voltage Start-Up and Vo Rise Characteristic Vin=Vin(nom), Full Load Vin=Vin(nom), Full Load Conduction Emission of EN55022 Class A Conduction Emission of EN55022 Class B Vin=Vin(nom), Full Load Vin=Vin(nom), Full Load VER:00 Page 8 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C.The figures are for PXF40-24WS12. Efficiency Versus Output Current Efficiency Versus Input Voltage. Full Load Power Dissipation Versus Output Current Derating OutputCurrentVersusAmbientTemperature andAirflow Vin=Vin(nom) Derating OutputCurrentVersusAmbientTemperature with Heat-Sink andAirflow, Vin = Vin(nom) VER:00 Page 9 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C.The figures are for PXF40-24WS12. Typical Output Ripple and Noise. Transient Response to Dynamic Load Change from Vin=Vin(nom), Full Load 100% to 75% to 100% of Full Load ; Vin=Vin(nom) Typical Input Start-Up and Output Rise Characteristic Using ON/OFF Voltage Start-Up and Vo Rise Characteristic Vin=Vin(nom), Full Load Vin=Vin(nom), Full Load Conduction Emission of EN55022 Class A Conduction Emission of EN55022 Class B Vin=Vin(nom), Full Load Vin=Vin(nom), Full Load VER:00 Page 10 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C..The figures are for PXF40-24WS15. Efficiency Versus Output Current Efficiency Versus Input Voltage. Full Load Power Dissipation Versus Output Current Derating OutputCurrentVersusAmbientTemperature andAirflow Vin=Vin(nom) Derating OutputCurrentVersusAmbientTemperature with Heat-Sink andAirflow, Vin = Vin(nom) VER:00 Page 11 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C.The figures are for PXF40-24WS15. Typical Output Ripple and Noise. Transient Response to Dynamic Load Change from Vin=Vin(nom), Full Load 100% to 75% to 100% of Full Load ; Vin=Vin(nom) Typical Input Start-Up and Output Rise Characteristic Using ON/OFF Voltage Start-Up and Vo Rise Characteristic Vin=Vin(nom), Full Load Vin=Vin(nom), Full Load Conduction Emission of EN55022 Class A Conduction Emission of EN55022 Class B Vin=Vin(nom), Full Load Vin=Vin(nom), Full Load VER:00 Page 12 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25C. The figures are for PXF40-48WS3P3 Efficiency Versus Output Current Efficiency Versus Input Voltage. Full Load Power Dissipation Versus Output Current Derating OutputCurrentVersusAmbientTemperature andAirflow Vin=Vin(nom) Derating Output CurrentVersusAmbientTemperature with Heat-Sink andAirflow, Vin = Vin(nom) VER:00 Page 13 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C.The figures are for PXF40-48WS3P3. Typical Output Ripple and Noise. Transient Response to Dynamic Load Change from Vin=Vin(nom), Full Load 100% to 75% to 100% of Full Load ; Vin=Vin(nom) Typical Input Start-Up and Output Rise Characteristic Using ON/OFF Voltage Start-Up and Vo Rise Characteristic Vin=Vin(nom), Full Load Vin=Vin(nom), Full Load Conduction Emission of EN55022 Class A Conduction Emission of EN55022 Class B Vin=Vin(nom), Full Load Vin=Vin(nom), Full Load VER:00 Page 14 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C..The figures are for PXF40-48WS05. Efficiency Versus Output Current Efficiency Versus Input Voltage. Full Load Power Dissipation Versus Output Current Derating OutputCurrentVersusAmbientTemperature andAirflow Vin=Vin(nom) Derating OutputCurrentVersusAmbientTemperature with Heat-Sink andAirflow, Vin = Vin(nom) VER:00 Page 15 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C.The figures are for PXF40-48WS05. Typical Output Ripple and Noise. Transient Response to Dynamic Load Change from Vin=Vin(nom), Full Load 100% to 75% to 100% of Full Load ; Vin=Vin(nom) Typical Input Start-Up and Output Rise Characteristic Using ON/OFF Voltage Start-Up and Vo Rise Characteristic Vin=Vin(nom), Full Load Vin=Vin(nom), Full Load Conduction Emission of EN55022 Class A Conduction Emission of EN55022 Class B Vin=Vin(nom), Full Load Vin=Vin(nom), Full Load VER:00 Page 16 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C.The figures are for PXF40-48WS12. Efficiency Versus Output Current Efficiency Versus Input Voltage. Full Load Power Dissipation Versus Output Current Derating OutputCurrentVersusAmbientTemperature andAirflow Vin=Vin(nom) Derating OutputCurrentVersusAmbientTemperature with Heat-Sink andAirflow, Vin = Vin(nom) VER:00 Page 17 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C.The figures are for PXF40-48WS12. Typical Output Ripple and Noise. Transient Response to Dynamic Load Change from Vin=Vin(nom), Full Load 100% to 75% to 100% of Full Load ; Vin=Vin(nom) Typical Input Start-Up and Output Rise Characteristic Using ON/OFF Voltage Start-Up and Vo Rise Characteristic Vin=Vin(nom), Full Load Vin=Vin(nom), Full Load Conduction Emission of EN55022 Class A Conduction Emission of EN55022 Class B Vin=Vin(nom), Full Load Vin=Vin(nom), Full Load VER:00 Page 18 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C.The figures are identical for PXF40-48WS15. Efficiency Versus Output Current Efficiency Versus Input Voltage. Full Load Power Dissipation Versus Output Current Derating OutputCurrentVersusAmbientTemperature andAirflow Vin=Vin(nom) Derating OutputCurrentVersusAmbientTemperature with Heat-Sink andAirflow, Vin = Vin(nom) VER:00 Page 19 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output Characteristic Curves (Continued) All test conditions are at 25°C.The figures are for PXF40-48WS15. Typical Output Ripple and Noise. Transient Response to Dynamic Load Change from Vin=Vin(nom), Full Load 100% to 75% to 100% of Full Load ; Vin=Vin(nom) Typical Input Start-Up and Output Rise Characteristic Using ON/OFF Voltage Start-Up and Vo Rise Characteristic Vin=Vin(nom), Full Load Vin=Vin(nom), Full Load Conduction Emission of EN55022 Class A Conduction Emission of EN55022 Class B Vin=Vin(nom), Full Load Vin=Vin(nom), Full Load VER:00 Page 20 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output Test Configurations Input reflected-ripple current measurement test: Component L C Value 12μH 47μF Voltage ---100V Reference ---Aluminum Electrolytic Capacitor Peak-to-peak output ripple & noise measurement test: Output voltage and efficiency measurement test: Note:All measurements are taken at the module terminals.  V  Io Efficiency   o  Vin  I in    100%  VER:00 Page 21 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output EMC Considerations Suggested Schematic for EN55022 Conducted Emission Class A Limits Recommended Layout with Input Filter To meet conducted emissions EN55022 CLASS A the following components are needed: Value PXF40-24WSxx Voltage Component C1,C2 C3,C4 ---- ---- 1000pF 2KV Component C1,C2 C3,C4 Value 2.2uF 1000pF Reference ---- 1206 MLCC PXF40-48WSxx Voltage Reference 100V 1812 MLCC 2KV 1206 MLCC VER:00 Page 22 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output EMC Considerations (Continued) Suggested Schematic for EN55022 Conducted Emission Class B Limits Recommended Layout with Input Filter To meet conducted emissions EN55022 CLASS B the following components are needed: Component C1,C3 C5,C6 L1 Value 4.7uF 1000pF 450uH Component Value C1,C2 2.2uF C3,C4 2.2uF C5,C6 1000pF L1 830uH This Common Choke L1 is defined as follows: PXF40-24WSxx Voltage Reference 50V 1812 MLCC 2KV 1206 MLCC ---Common Choke PXF40-48WSxx Voltage Reference 100V 1812 MLCC 100V 1812 MLCC 2KV 1206 MLCC ---Common Choke ■ L: 450μH±35% / DCR:25mΩ, max A height:9.8 mm, Max ■ L: 830μH±35% / DCR:31mΩ, max A height:8.8 mm, Max ■ Test condition:100KHz / 100mV ■ Recommended through hole:Φ0.8mm ■ All dimensions in millimeters VER:00 Page 23 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output 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 DC-DC converter. Input external L-C filter is recommended to minimize input reflected ripple current. The inductor has a simulated source impedance of 12μH and the capacitor is Nippon chemi-con KZE series 47μF/100V. The capacitor must be located as close as possible to the input terminals of the converter for lower impedance. Output Over Current Protection When excessive output currents occur in the system, circuit protection is required on all converters. Normally, overload current is maintained at approximately 150 percent of rated current for PXF40-xxWsxx series. Hiccup-mode is a method of operation in the converter whose purpose is to protect the converter from being damaged during an over-current fault condition. It also enables the converter 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 an output Zener diode that monitors the voltage on the output terminals. If the voltage on the output terminals exceeds the over-voltage protection threshold, then the Zener diode clamps the output voltage. VER:00 Page 24 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output Thermal Consideration The converter operates in a variety of thermal environments. 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 shown in 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 converter is 105°C, limiting this temperature to a lower value will increase the reliability of the unit. Heat Sink Consideration Use heat-sink (7G-0026A) for lowering temperature; thus increasing the reliability of the converter. All dimensions in millimeters VER:00 Page 25 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output Remote ON/OFF Control The Remote ON/OFF Pin is used to turn the converter on and off. The user must use a switch to control the logic voltage (high or low level) of the pin referenced to Vi (-). The switch can be an open collector transistor, FET or Opto-Coupler. The switch must be capable of sinking up to 0.5 mA at low-level logic voltage. Using High-level logic, the maximum allowable leakage current of the switch at 12V is 0.5 mA. Remote ON/OFF Implementation Circuits Isolated-Control 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. Positive logic: Turned off at Low-level logic Tturned on at High-level logic b. Negative logic: Turned on at Low-level logic Turned off at High-level logic VER:00 Page 26 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output Mechanical Data 2.00 (50.8) DIA. 0.04(1.0) 1.10 (27.9) 0.400 (10.16) 3 2 1 6 5 1.800 (45.72) 2.00 (50.8) BOTTOM VIEW 8 7 4 0.10 (2.5) 0.100 (2.54) 0.300 (7.62) 0.600 (15.24) 0.800 (20.32) PIN 1 2 3 4 5 6 7 8 0.40(10.2) 0.200 (5.08) 0.200 (5.08) 0.22 (5.6) 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) PIN CONNECTION EXTERNAL OUTPUT TRIMMING FUNCTION +INPUT -INPUT CTRL -SENSE +SENSE +OUTPUT -OUTPUT TRIM Output can be externally trimmed by using the method shown below. TRIM UP TRIM DOWN 4 8 RU 8 RD 5 Recommended Pad Layout VER:00 Page 27 of 31 Issued Date：2009/03/02 DataSheet 40W, Single 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 SENSE(+) or SENSE(-) pins. With an external resistor between the TRIM and SENSE(-) pin, the output voltage set point increases. With an external resistor between the TRIM and SENSE(+) pin, the output voltage set point decreases. TRIM UP TRIM DOWN 4 8 RU RD 5 8 TRIM TABLE PXF40-xxWS3P3 Trim up (%) 1 2 3 4 5 6 7 8 9 10 VOUT (Volts)= 3.333 3.366 3.399 3.432 3.465 3.498 3.531 3.564 3.597 3.630 RU (K Ohms)= 57.930 26.165 15.577 10.283 7.106 4.988 3.476 2.341 1.459 0.753 Trim down (%) 1 2 3 4 5 6 7 8 9 10 VOUT (Volts)= 3.267 3.234 3.201 3.168 3.135 3.102 3.069 3.036 3.003 2.970 RD (K Ohms)= 69.470 31.235 18.490 12.117 8.294 5.745 3.924 2.559 1.497 0.647 PXF40-xxWS05 Trim up (%) 1 2 3 4 5 6 7 8 9 10 VOUT (Volts)= 5.050 5.100 5.150 5.200 5.250 5.300 5.350 5.400 5.450 5.500 RU (K Ohms)= 36.570 16.580 9.917 6.585 4.586 3.253 2.302 1.588 1.032 0.588 Trim down (%) 1 2 3 4 5 6 7 8 9 10 VOUT (Volts)= 4.950 4.900 4.850 4.800 4.750 4.700 4.650 4.600 4.550 4.500 RD (K Ohms)= 45.533 20.612 12.306 8.152 5.660 3.999 2.812 1.922 1.230 0.676 1 2 3 PXF40-xxWS12 Trim up (%) 4 5 6 7 8 9 10 VOUT (Volts)= 12.120 12.240 12.360 12.480 12.600 12.720 12.840 12.960 13.080 13.200 RU (K Ohms)= 367.910 165.950 98.636 64.977 44.782 31.318 21.701 14.488 8.879 4.391 Trim down (%) 1 VOUT (Volts)= RD (K Ohms)= 2 3 4 11.880 11.760 11.640 11.520 460.990 207.950 123.600 81.423 2 3 4 5 11.400 6 7 8 9 10 10.920 10.800 18.162 11.132 5.509 8 9 10 11.280 11.160 11.040 56.118 39.249 27.199 5 6 7 PXF40-xxWS15 Trim up (%) 1 VOUT (Volts)= 15.150 15.300 15.450 15.600 15.750 15.900 16.050 16.200 16.350 16.500 RU (K Ohms)= 404.180 180.590 106.060 68.796 46.437 31.531 20.883 12.898 6.687 1.718 Trim down (%) 1 2 3 4 5 6 7 8 9 10 VOUT (Volts)= 14.850 14.700 14.550 14.400 14.250 14.100 13.950 13.800 13.650 13.500 RD (K Ohms)= 499.820 223.410 131.270 85.204 57.563 39.136 25.974 16.102 8.424 2.282 VER:00 Page 28 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output Remote Sense Application Circuit The Remote Sense function, when used, regulates the voltage at the load terminals; this compensates for any voltage drop that may exist between the output of the converter and the load. The voltage compensation is limited to less than 10 % of the nominal output voltage rating of the converter. i.e.: [Vo (+) to Vo (-)] – [Sense (+) to Sense (-)] < 10% Vo If the Remote Sense function is not used the SENSE (+) should be connected to OUTPUT (+) and the SENSE (-) should be connected to OUTPUT(-) of the converter. Remote Sense shown connected to the load. Soldering Consideration Lead free wave solder profile for PXF40WS-SERIES Zone Preheat zone Reference Parameter Rise temp. speed : 3°C/ sec max. Preheat temp. : 100~130°C Actual heating Peak temp. : 250~260°C Peak time (T1+T2 time) : 4~6 sec Reference Solder:Sn-Ag-Cu / Sn-Cu Hand Welding:Soldering iron - Power 90W Welding Time: 2-4 sec Temp.:380-400 °C VER:00 Page 29 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output Packaging Information 10 PCS per TUBE Part Number Structure PXF 40 – 48 WS 05 – N Max. Output Power 40Watts Negative Logic Output Voltage 3P3 : 3.3V 05 : 5V 12 : 12V 15 : 15V Input Voltage Range 24 : 9 ~ 36V 48 : 18 ~ 75V Single Output Model Number Input Range Output Voltage PXF40-24WS3P3 9 – 36 VDC 3.3 VDC PXF40-24WS05 9 – 36 VDC 5 VDC PXF40-24WS12 9 – 36 VDC 12 VDC PXF40-24WS15 9 – 36 VDC 15 VDC PXF40-48WS3P3 18 – 75 VDC 3.3 VDC PXF40-48WS05 18 – 75 VDC 5 VDC PXF40-48WS12 18 – 75 VDC 12 VDC PXF40-48WS15 18 – 75 VDC 15 VDC Note 1. Maximum value at nominal input voltage and full load. Note 2. Typical value at nominal input voltage and full load. Output Current Full Load 10000mA 8000mA 3333mA 2666mA 10000mA 8000mA 3333mA 2666mA Input Current (1) Full Load 1677mA 2008mA 2008mA 2008mA 838mA 992mA 1004mA 1004mA (2) Eff (%) 86 87 87 87 86 88 87 87 VER:00 Page 30 of 31 Issued Date：2009/03/02 DataSheet 40W, Single Output Safety and Installation Instruction Fusing Consideration Caution: This converter is not internally fused. An input line fuse must always be used. This encapsulated converter can be used in a wide variety of applications, ranging from simple stand-alone operation to an integrated part of a sophisticated power architecture. For 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 a maximum rating of 8A for PXF40-24WSxx converters and 5A for PXF40-48WSxx converters. Based on the information provided in this data sheet on Inrush energy and maximum DC input current; the same type of fuse with a lower rating can be used. Refer to the fuse manufacturer’s data for further information. MTBF and Reliability The MTBF of PXF40-xxWSxx 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 6 environment ). The resulting figure for MTBF is 1.105×10 hours. MIL-HDBK 217F NOTICE2 FULL LOAD, Operating Temperature at 25°C ℃. The resulting figure for MTBF is1.511× 5 10 hours. VER:00 Page 31 of 31 Issued Date：2009/03/02