PXD20-24S12

PXD20-xxSxx Single Output DC/DC Converter 9 to 18 , 18to 36 and 36 to75 Vdc input, 1.5to 15 Vdc Single Output, 20W Features  Low profile: 2.0X1.0X0.4 inches (50.8X25.4X10.2mm)  2:1 wide input voltage of 9-18, 18-36 and 36-75VDC  20 Watts output power  Input to output isolation: 1600Vdc, min  Operating case temperature range :100°C max  Over-current protection, auto-recovery  Output over voltage protection  ISO 9001 certified manufacturing facilities  UL60950-1, EN60950-1 and IEC60950-1 licensed  CE Mark meet 2006/95/EC, 93/68/EEC and 2004/108/EC  Compliant to RoHS EU directive 2002/95/EC Applications  Distributed power architectures  Communication equipment  Computer equipment Option  Negative logic Remote on/off General Description The PXD20-xxSxx series offers 20 watts of output power from a 2 x 1 x 0.4 inch package. Table of contents Absolute maximum rating P2 External trim adjustment P9 Input Specifications P2 Characteristic curves P11 General Specifications P3 Test configurations P20 Output Specifications P4 Part number structure P21 Thermal Consideration P5 Mechanical data P21 Output over current protection P7 Safety and installation instruction P22 Short circuit protection P7 MTBF and Reliability P22 Solder and Reflow consideration P8 1 Data Sheet Absolute Maximum Rating Parameter Max Unit 12Sxx 18 Vdc 24Sxx 36 Vdc 48Sxx 75 Vdc 12Sxx 36 Vdc 24Sxx 50 Vdc 48Sxx 100 Vdc +85 °C 100 °C Device Continuous Input Voltage Transient (100ms) Operating temperature range All (Operating temperature will be depended De-rating curve) Min Typ -40 Operating case range All Storage temperature All -55 I/O Isolation voltage All 1600 I/O Isolation capacitance All +105 °C Vdc 1000 pF Input Specifications Parameter Device Operating Input Voltage Input reflected ripple current (Please see the testing configurations part.) Start Up Time (nominal vin and Power up constant resistive load) Remove on/off Min Typ Max Unit 12Sxx 9 12 18 Vdc 24Sxx 18 24 36 Vdc 48Sxx 36 48 75 Vdc All 20 mA p-p All 10 mS Remote ON/OFF Positive Logic Negative Logic (Option) DC-DC ON All 3 12 Vdc DC-DC OFF All 0 1.2 Vdc All 0 1.2 Vdc All 3 12 Vdc DC-DC ON DC-DC OFF 2 Data Sheet General Specifications Parameter Device Min Typ Max Unit 12S1P5 78 % 12S1P8 79 % 12S2P5 83 % 12S3P3 85 % 12S05 87 % 12S12 86 % 12S15 86 % 24S1P5 80 % 24S1P8 81 % Efficiency 24S2P5 84 % Test at Vin, nom and full load 24S3P3 86 % 24S05 89 % 24S12 87 % (Please see he testing configurations part.) 24S15 87 % 48S1P5 80 % 48S1P8 82 % 48S2P5 84 % 48S3P3 87 % 48S05 89 % 48S12 88 % 48S15 Isolation resistance Transient Response Recovery Time (25% load step change) All All 87 % 9 Ω 10 μS 250 Isolation Capacitance All Switching Frequency(Test at Vin, nom and full load) All 1000 Weight All 27 MTBF (please see the MTBF and reliability part) All 1.791×10 500 pF KHz g 6 hours 3 Data Sheet Output Specifications Parameter Operating Output Range Line Regulation(LL to HL at Full Load) Load Regulation(0% to 100% Full Load) Output Ripple & Noise, 20MHz bandwidth (Measured with a 0.1μF/50V MLCC) Device Min Typ Max Unit xxS1P5 1.485 1.500 1.515 Vdc xxS1P8 1.782 1.800 1.818 Vdc xxS2P5 2.475 2.500 2.525 Vdc xxS3P3 3.267 3.300 3.333 Vdc xxS05 4.95 5.00 5.05 Vdc xxS12 11.88 12.00 12.12 Vdc xxS15 14.85 15.00 15.15 Vdc All -0.2 0.2 % All -0.5 0.5 % xxS1P5 60 xxS1P8 60 xxS2P5 60 xxS3P3 60 xxS05 75 xxS12 75 xxS15 Temperature Coefficient Output Current Output Over Voltage Protection Zener diode clamp Output Over Current Protection Output Short Circuit Protection Output Capacitor Load mVp-p 75 All -0.02 +0.02 %/℃ xxS1P5 0 6000 mA xxS1P8 0 6000 mA xxS2P5 0 6000 mA xxS3P3 0 5000 mA xxS05 0 4000 mA xxS12 0 1670 mA xxS15 0 1330 mA xxS1P5 3.9 Vdc xxS1P8 3.9 Vdc xxS2P5 3.9 Vdc xxS3P3 3.9 Vdc xxS05 6.2 Vdc xxS12 15 Vdc xxS15 18 Vdc All All 150 % FL Hiccup, automatics recovery xxS1P5 65000 μF xxS1P8 65000 μF xxS2P5 33000 μF xxS3P3 13000 μF xxS05 6800 μF xxS12 2200 μF xxS15 755 μF 4 Data Sheet 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 indicated in the figure below. The temperature at this location should not exceed 100°C. When operating, adequate cooling must be provided to maintain the test point temperature at or below 100°C. Although the maximum temperature of the power module is 100°C, decreasing this temperature will yield higher reliability. TOP VIEW Measurement shown in inches(mm) Following are derating curves for models: PXD20-24S1P8, 48S05 and 48S15. PXD20-24S1P8 Derating Curve 120.0 Output Power(%) 100.0 80.0 60.0 40.0 Nature convection Nature convection With heat-sink 20.0 0.0 -4 0 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 Amb ient Temperature( °C) 5 Data Sheet PXD20-48S05 Derating Curve 120.0 O utput Power( %) 100.0 80.0 60.0 40.0 Nature convection Nature convection With heat-sink 20.0 0.0 -40 -3 0 -20 -10 0 10 20 30 40 50 60 70 80 9 0 1 00 A mbient Tempe rature( °C) PXD20-48S15 Derating Curve 1 20.0 O utp ut P ower(% ) 1 00.0 80.0 60.0 40.0 Nature convection Nature convection With heat-sink 20.0 0.0 - 40 - 30 - 20 - 10 0 10 20 30 40 50 60 70 80 90 100 A mbien t Tempe rature( °C) 6 Data Sheet 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 150 percent of rated current for PXD20-xxSxx 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 these 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 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, the converter shuts down. The average current during this condition will be very low and the device is protected. 7 Data Sheet Soldering and Reflow Consideration Lead free wave solder profile for PXD20-xxSxx DIP type 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 8 Data Sheet External trim 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 decreases. With an external resistor between the TRIM and Vo (-) pin, the output voltage set point increases. TRIM DOWN +Output♁ ♁+Input ♁-Input TRIM♁ -Output♁ ♁CTRL TRIM UP +Output♁ ♁+Input ♁-Input TRIM♁ -Output♁ ♁CTRL EXTERNAL OUTPUT TRIMMING TRIM TABLE PXD20-xxS1P5 Trim down 1 2 3 4 5 6 7 8 9 10 Vout= 1.485 1.470 1.455 1.440 1.425 1.410 1.395 1.380 1.365 1.350 Volts Rx= 5.704 2.571 1.527 1.005 0.692 0.483 0.334 0.222 0.135 0.065 K Ohms Trim up 1 2 3 4 5 6 7 8 9 10 % Vout= 1.515 1.530 1.545 1.560 1.575 1.590 1.605 1.620 1.635 1.650 Volts Rx= 4.578 2.065 1.227 0.808 0.557 0.389 0.270 0.180 0.110 0.054 K Ohms Trim down 1 2 3 4 5 6 7 8 9 10 % Vout= 1.782 1.764 1.746 1.728 1.710 1.692 1.674 1.656 1.638 1.620 Volts Rx= 14.66 6.57 3.874 2.525 1.716 1.177 0.792 0.503 0.278 0.098 K Ohms Trim up 1 2 3 4 5 6 7 8 9 10 % Vout= 1.818 1.836 1.854 1.872 1.89 1.908 1.926 1.944 1.962 1.98 Volts Rx= 11.639 5.205 3.060 1.988 1.344 0.915 0.609 0.379 0.200 0.057 K Ohms % PXD20-xxS1P8 9 Data Sheet PXD20-xxS2P5 Trim down 1 2 3 4 5 6 7 8 9 10 % Vout= 2.475 2.450 2.425 2.400 2.375 2.350 2.325 2.300 2.275 2.250 Volts Rx= 49.641 22.481 13.428 8.902 6.186 4.375 3.082 2.112 1.358 0.754 K Ohms Trim up 1 2 3 4 5 6 7 8 9 10 % Vout= 2.525 2.550 2.575 2.600 2.625 2.650 2.675 2.700 2.725 2.75 Volts Rx= 37.076 16.675 9.874 6.474 4.434 3.074 2.102 1.374 0.807 0.354 K Ohms Trim down 1 2 3 4 5 6 7 8 9 10 % Vout= 3.267 3.234 3.201 3.168 3.135 3.102 3.069 3.036 3.003 2.970 Volts PXD20-xxS3P3 Rx= 69.470 31.235 18.490 12.117 8.294 5.745 3.924 2.559 1.497 0.647 K Ohms Trim up 1 2 3 4 5 6 7 8 9 10 % Vout= 3.333 3.366 3.399 3.432 3.465 3.498 3.531 3.564 3.597 3.630 Volts Rx= 57.930 26.165 15.577 10.283 7.106 4.988 3.476 2.341 1.459 0.753 K Ohms PXD20-xxS05 Trim down 1 2 3 4 5 6 7 8 9 10 % Vout= 4.950 4.900 4.850 4.800 4.750 4.700 4.650 4.600 4.550 4.500 Volts Rx= 45.533 20.612 12.306 8.152 5.660 3.999 2.812 1.922 1.230 0.676 K Ohms Trim up 1 2 3 4 5 6 7 8 9 10 % Vout= 5.050 5.100 5.150 5.200 5.250 5.300 5.350 5.400 5.450 5.500 Volts Rx= 36.570 16.580 9.917 6.585 4.586 3.253 2.302 1.588 1.032 0.588 K Ohms Trim down 1 2 3 4 7 8 9 Vout= 11.880 11.760 11.640 PXD20-xxS12 Rx= 6 1 2 3 Vout= 12.120 12.240 12.360 367.910 165.950 98.636 10 11.520 11.400 11.280 11.160 11.040 10.920 10.800 460.990 207.950 123.600 81.423 56.118 39.249 27.199 18.162 11.132 Trim up Rx= 5 4 5 6 7 8 9 8.879 Volts 5.509 K Ohms 10 12.480 12.600 12.720 12.840 12.960 13.080 13.200 64.977 44.782 31.318 21.701 14.488 % % Volts 4.391 K Ohms PXD20-xxS15 Trim down 1 2 3 Vout= 14.850 14.700 14.550 Rx= 5 6 7 8 1 2 3 Vout= 15.150 15.300 15.450 9 10 14.400 14.250 14.100 13.950 13.800 13.650 13.500 499.820 223.410 131.270 85.204 57.563 39.136 25.974 16.102 Trim up Rx= 4 4 5 6 7 8 8.424 9 6.687 Volts 2.282 K Ohms 10 15.600 15.750 15.900 16.050 16.200 16.350 16.500 404.180 180.590 106.060 68.796 46.437 31.531 20.883 12.898 % % Volts 1.718 K Ohms 10 Data Sheet Characteristic Curve Efficiency a. Efficiency with load change under different line conditions at room temperature PXD20-24S1P8 95.00 Eff(%) 85.00 75.00 65.00 18V 24V 36V 55.00 45.00 0.6 1.2 1.8 2.4 3 3.6 4.2 4.8 5.4 lout(A ) 6 PXD 20-48S05 95.00 Eff(%) 85.00 75.00 36V 48V 75V 65.00 55.00 0.4 0.8 1.2 1.6 2 2.4 2.8 3.2 lout(A) 3.6 4 PXD20-48S15 95.00 Eff(%) 85.00 75.00 65.00 36V 48V 75V 55.00 45.00 0.13 0.26 0.39 0.52 0.65 0.78 0.91 1.04 1.17 1.3 lout(A ) 11 Data Sheet b. Efficiency with line change under different load conditions at room temperature PXD20-24S1P8 82.50 80.00 Eff(%) 77.50 6000mA 3000mA 600mA 75.00 72.50 70.00 18V 20V 22V 24V 26V 28V 30V 32V 34V 36V Vin(V) PXD20-48S05 92.50 Eff(%) 90.00 87.50 85.00 82.50 4000mA 2000mA 400mA 80.00 36V 40V 44V 48V 52V 56V 60V 64V 68V 75V Vin(V) PXD20-48S15 90.00 Eff(%) 85.00 80.00 1330mA 665mA 133mA 75.00 70.00 36V 40V 44V 48V 52V 56V 60V 64V 68V 75V Vin(V) 12 Data Sheet Power dissipation curve PXD20-24S1P8 3.500 pd(w) 3.000 2.500 18V 24V 36V 2.000 1.500 1.000 0.6 1.2 1.8 2.4 3 3.6 4.2 4.8 5.4 lout(A ) 6 PXD20-48S05 3.000 36V 48V 75V pd(w) 2.500 2.000 1.500 1.000 0.500 0.4 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 4 lout(A ) PXD20-48S15 4.000 pd(w) 3.500 3.000 36V 48V 75V 2.500 2.000 0.13 0.26 0.39 0.52 0.65 0.78 0.91 1.04 1.17 1.3 lout(A ) 13 Data Sheet Output ripple & noise PXD20-24S1P8 Low Line, Full Load Normal Line, Full Load High Line, Full Load Output Ripple Noise=24.4mV Output Ripple Noise=36.4mV Output Ripple Noise=42.4mV PXD20-48S05 Low Line, Full Load Normal Line, Full Load High Line, Full Load Output Ripple Noise=14.0mV Output Ripple Noise=16.4mV Output Ripple Noise=20.8mV PXD20-48S15 Low Line, Full Load Normal Line, Full Load High Line, Full Load Output Ripple Noise=24.0mV Output Ripple Noise=25.7mV Output Ripple Noise=37.6mV 14 Data Sheet Transient Peak and Response PXD20-24S1P8 Low Line, Full Load Normal Line, Full Load High Line, Full Load Transient Peak 110.0mV Transient Peak 108.0mV Transient Peak 110.0mV Transient Response 84uS Transient Response 96uS Transient Response 164uS PXD20-48S05 Low Line, Full Load Normal Line, Full Load High Line, Full Load Transient Peak 42mV Transient Peak 40.8mV Transient Peak 46.4mV Transient Response 72uS Transient Response 72uS Transient Response 72uS PXD20-48S15 Low Line, Full Load Normal Line, Full Load High Line, Full Load Transient Peak 91mV Transient Peak 93mV Transient Peak 89mV Transient Response 88uS Transient Response 88uS Transient Response 88uS 15 Data Sheet Inrush Current PXD20-24S1P8 Low Line, Full Load Inrush current=(58.4/10) X200mA=1168mA Normal Line, Full Load Inrush current=(38.0/10) x200mA=760mA Low Line, Full Load Duration: 360uS Normal Line, Full Load Duration: 280uS High Line, Full Load Inrush current=(26.2/10) x200mA=524mA High Line, Full Load Duration: 260uS PXD20-48S05 Low Line, Full Load Inrush current=(41.6/10) X200mA=832mA Normal Line, Full Load Inrush current=(33.8/10) x200mA=676mA Low Line, Full Load Duration: 520uS Normal Line, Full Load Duration: 460uS High Line, Full Load Inrush current=(25.2/10) x200mA=504mA High Line, Full Load Duration: 400uS 16 Data Sheet PXD20-48S15 Low Line, Full Load Normal Line, Full Load High Line, Full Load Inrush current=(50.6/10) X200mA=1012mA Inrush current=(37.8/10) x200mA=756mA Inrush current=(23.0/10) x200mA=460mA Low Line, Full Load Normal Line, Full Load High Line, Full Load Duration: 700uS Duration: 620uS Duration: 420uS 17 Data Sheet Input Ripple Current PXD20-24S1P8 Low Line, Full Load Ripple current=(2.6/10) x20=5.2mA Normal Line, Full Load Ripple current=(2.8/10) x20=5.6mA High Line, Full Load Ripple current=(3.0/10) x20=6.0mA PXD20-48S05 Low Line, Full Load Normal Line, Full Load High Line, Full Load Ripple current=(2.8/10) x20=5.6mA Ripple current=(2.60/10) x20=5.2mA Ripple current=(3.2/10) x20=6.4mA PXD20-48S15 Low Line, Full Load Ripple current=(2.6/10) x20=5.2mA Normal Line, Full Load Ripple current=(2.4/10) x20=4.8mA High Line, Full Load Ripple current=(2.8/10) x20=7.6mA 18 Data Sheet Delay Time and Rise Time PXD20-24S1P8 Normal Line, Full Load Normal Line, Full Load Rise Time=235uS Delay Time= 380uS PXD20-48S05 Normal Line, Full Load Rise Time=234.9uS Normal Line, Full Load Delay Time= 520uS PXD20-48S15 Normal Line, Full Load Rise Time=448.3uS Normal Line, Full Load DelayTime=620uS 19 Data Sheet Testing Configurations Input reflected-ripple current Measurement Test: Component L C Value 12μH 100μF 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%  20 Data Sheet Part Number Structure PXD 20 – 24 S 12 Total Output power 20 Watt Output Voltage 1P5:1.5V 1P8:1.8V 3P3 : 3.3V 05 : 5V 12 : 12V 15 : 15V Input Voltage Range 12 : 9~18V 24 : 18~36V 48 : 36~75V Single Output Mechanical Data 1.00(25.4) 0.50 (12.7) 0.40 (10.2) DIA. 0.04(1.0) 5 Bottom View 1 2 6 0.80(20.3) 4 Pin 1 2 3 4 5 6 0.60(15.2) 2.00(50.8) 3 0.40 (10.2) 0.40 (10.2) 0.10(2.5) 0.20(5.1) PIN CONNECTION Function + INPUT - INPUT + OUTPUT TRIM - OUTPUT CTRL (Option) EXTERNAL OUTPUT TRIMMING Output can be externally trimmed by using the method shown below. 0.22(5.6) TRIM UP TRIM DOWN 5 1.All dimensions in Inches (mm) 2. Pin pitch tolerance ±0.0014(0.35) 3. Tolerance：x.xx±0.02 (x.x±0.5) x.xxx±0.01 (x.xx±0.25) 4 RU 4 RD 3 21 Data Sheet Safety and Installation Instruction Isolation Consideration The PXD20-xxSxx series features 1.6k Volt DC isolation from input to output, input to case, and output to case. The 9 input to output resistance is greater than 10 ohms. Nevertheless, if the system using the power module needs safety agency approval, certain rules must be followed in the design of the system using the model. In particular, all of the creepage and clearance requirements of the end-use safety requirement must be observed. These documents include UL-60950-1, EN60950-1 and CSA 22.2-960, although specific applications may have other or additional requirements. 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 or 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 maximum rating of 3 A. 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 PXD20-xxSxx series of DC/DC converters has been calculated using 1.MIL-HDBK-217F under the following conditions: Nominal Input Voltage Io = Io, max Ta = 25°C ℃ 5 The resulting figure for MTBF is 6.842× 10 hours. 2.Bell-core TR-NWT-000332 Case I: 50% stress, Operating Temperature at 40°C ℃ (Ground fixed and controlled environment) 6 The resulting figure for MTBF is 1.791× 10 hours. 22