RDF50 XPPOWER | Alldatasheet
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RD F50 Series D C -D C C onverter xxx Series w w w .xppow er.com 1 M odels & Ratings Notes 1. T ypical at 14 VD C input. 2. M easured at 20 M H z bandw idth and 10 µF electrolytic capacitor. 3. M easured at 72 VD C input.
- Ultra Wide 12:1 Input Range (14-160 VDC)
- Single Output
- Industry Standard 1/4 Brick
- -40 °C to +100 °C Operation
- 3000 VDC Isolation
- Output Trim -20/+10%
- Remote On/Off and Remote Sense
- Complies with EN50155
- Meets EN50121-3-2
- 3 Year Warranty Dim ensions: RDF50:
50 Watts
- All dimensions are in inches (mm) 2. Weight: 0.24 lbs (109 g) approx. x.xx = ±0.02 (x.xxx = ±0.01) Notes Pin C onnections Pin Single 1 +Vin
2 Remote On/Off
6 T rim
0.126 (3.2) clearance 2pl Mo unting Holes 1. 86 (47 .2) 0.059 (1.50) Dia 2 places 0.040 (1.02) Dia 6 places 2.28 (57.9) 2. 00 (50.8) 0.30 (7.62) 0.16 min (4.1) 0.50 (12.7) 0.60 (15.24) 1. 45 (36.8) 1. 03 (26.2) 0.60 (15.24) M echanical Details Input Voltage O utput Voltage O utput C urrent Input C urrent (1 ) R ipple & noise (2) Efficiency (3) M ax. capacitive load M odel N um ber N o Load Full Load 14-160 VDC 5 V 6.00 A 5 mA 2.90 A 100 mV 83.0% 4700 µF RDF5072WS05 12 V 4.20 A 5 mA 4.30 A 150 mV 87 .0% 3300 µF RDF5072WS12 24 V 2.10 A 5 mA 4.20 A 240 mV 89.0% 1200 µF RDF5072WS24 48 V 1.05 A 5 mA 4.25 A 480 mV 88.0% 680 µF RDF5072WS48
w w w .xppow er.com 2 D C -D C C onverter Input O utput C haracteristic M inim um Typical M axim um U nits N otes & C onditions Output Voltage 5 48 VDC See Models and Ratings table Output T rim -20 +10 % See Application Note Initial Set Accuracy ±1.0 % At full load Minimum Load 0% No minimum load required Line Regulation ±0.5 % From minimum to maximum input at full load Load Regulation ±0.2 % From 0% to full load for single/dual output T ransient Response ±5.0 % Maximum deviation, recovering to less than 1% in 250 µs for 25% step load change. Start Up Time 15 ms Output Voltage Rise Time 10 ms Ripple & Noise mV pk-pk See models and ratings table Overload Protection 110 180 200 % Short Circuit Protection Continuous hiccup mode, with auto recovery Maximum Capacitive Load See Models and Ratings table T emperature Coefficient 0.02 %/ ˚C Overvoltage Protection 115 125 140 % Remote On/Off Output is on if remote on/off (pin 2) is open or high (3.5-160 VDC) Output turns off if remote on/off (pin 2) is low C haracteristic M inim um Typical M axim um U nits N otes & C onditions Input Voltage Range 14 160 VDC Covers 24, 48, 72 & 110 VDC nominal inputs Input Surge 200 VDC For 100 ms Undervoltage Lockout On: >13.4 V 13.7 14.0 VDC On Off: <11.9 V 12.2 12.5 Off Lockout Hysteresis 1.5 VDC Idle Current 35 mA When output is inhibited Inrush Current 0.1 A2s Recommended Input Fuse 8A Time delay type Input Reflected Ripple Current 40 mA pk-pk Through 10 µH inductor G eneral C haracteristic M inim um Typical M axim um U nits N otes & C onditions Efficiency 88 % See Models and Ratings table Isolation: Input to Output Input to Case Output to Case 3000 VDC 60 s 2500
500 VAC
Switching Frequency 180 200 220 kHz Fixed Isolation Resistance 10 9 Ω Isolation Capacitance 1000 pF Input to Output
1500 Input to Case
10000 Output to Case
Mean Time Between Failure 780 kHrs MIL-HDBK-217F , +25 °C GB Weight 0.136 (61.5) lb (g) Environm ental C haracteristic M inim um Typical M axim um U nits N otes & C onditions Operating Base Plate T emperature -40 +100 °C Storage T emperature -55 +105 °C Thermal Protection 107 °C Humidity 95 %RH Non-condensing Cooling Base plate cooled
w w w .xppow er.com D C -D C C onverter M echanical Details EM C: Im m unity Phenom enon Standard Test Level C riteria N otes & C onditions Railway Equipment EN50121-3-2 See Application Notes ESD Immunity EN61000-4-2 ±6 kV/±8 kV A C ontact D ischarge/Air D ischarge Radiated Immunity EN61000-4-3 20 V rms A EFT/Burst EN61000-4-4 ±2 kV A W ith external electrolytic capacitor 68 µF/400 V across input pins Surge EN61000-4-5 ±2 kV A W ith external electrolytic capacitor 68 µF/400 V across input pins Conducted Immunity EN61000-4-6 10 V rms A Magnetic Fields EN61000-4-8 3 A/m A EM C: Em issions Phenom enon Standard Test Level N otes & C onditions ITE EN55032 Class A See Application N otes Railway Equipment EN50121-3-2 See Application N otes BO TTOM V IEW 0.126 (3.2) clearance 2pl Mo unting Holes 1. 86 ( 47 .2) 0.059 (1.50) Dia 2 places 0.040 (1.02) Dia 6 places 2.2 8 (57.9) 2. 00 (50.8) 0.30 (7.62) 0.16 min (4.1) 0.50 (12.7) 0.60 (15.24) 1. 45 (36.8) 1. 03 (26.2) 0.60 (15.24) 1. All dimensions are in inches (mm) 2. Weight: 0.24 lbs (109 g) approx. Notes Pin C onnections Pin Single 1 +Vin Agency Standard N otes & C onditions UL cUL60950-1 ITE
w w w .xppow er.com 4 D C -D C C onverter A pplication N otes Trim U p
5 V 1 2 V 24 V 48 V
R trim _up (k Ω) 1 50.45 154.1 164.0 147 .3 2 24.34 74.95 78.64 71.29 3 15.63 48.56 50.18 45.93 4 11.28 35.37 35.94 33.24 5 8.67 27 .45 27 .40 25.63 6 6.93 22.17 21.71 20.56 7 5.69 18.41 17 .64 16.94 8 4.75 15.58 14.59 14.22 9 4.03 13.38 12.22 12.10 10 3.45 11.62 10.32 10.41 Trim U p R trim _dow n (k Ω) 1 215.8 687 .3 1703 3294 2 103.0 327 .1 807 .8 1588 3 65.40 207 .0 509.2 1019 4 46.60 147 .0 359.9 735.1 5 35.32 110.9 270.3 564.5 6 27 .80 27 .80 210.6 450.7 7 22.43 22.43 167 .9 369.5 8 18.40 18.40 135.9 308.5 9 15.27 15.27 111.0 261.1 10 12.76 12.76 91.16 223.2 11 10.71 10.71 74.87 192.2 12 9.00 9.00 61.30 166.3 13 7 .55 7 .55 49.82 144.5 14 6.31 6.31 39.97 125.7 15 5.24 5.24 31.44 109.5 16 4.30 4.30 23.97 95.28 17 3.47 3.47 17 .39 82.73 18 2.73 2.73 11.53 71.58 19 2.07 2.07 6.298 61.60 20 1.48 1.48 1.583 52.62 Input Fusing and Safety Considerations The RDF50 series converters have no internal fuse. In order to achieve maximum safety and system protection, always use an input line fuse. We recommended a 30 A fast acting fuse. It is recommended that the circuit has a transient voltage suppressor diode (TVS) across the input terminals to protect the unit against surge or spike voltages and input reverse voltage (as shown). A suitable part would be 1.5KE180A. Output Voltage Adjustment The T rim input permits the user to adjust the output voltage up by 10% or down by 20%. This is accomplished by connecting an external resistor between the T rim pin and either the +Sense pin or the -Sense pin. To Trim Down Connecting an external resistor (Rd) between the T rim pin and the Vout (+) (or +Sense) pin decreases the output voltage. The following table can be used to determine the required external resistor value to obtain a percentage output voltage change of Δ%. TVS V On/Off -Vin +Vin1 +Vout +Sense Trim -Sense -Vout Vin Load Trim down Rd Trim up Ru To Trim Up Connecting an external resistor (Ru) between the T rim pin and the Vout (-) (or -Sense) pin increases the output voltage. The following table can be used to determine the required external resistor value to obtain a percentage output voltage change of Δ%.
w w w .xppow er.com D C -D C C onverter Example (Without Heatsink) T o determine the minimum airflow necessary for a RDF5072S12 operating at an input voltage of 72 V , an output current of 4.20 A, and a maximum ambient temperature of 40°C: Determine Power dissipation (Pd): Pd = Pi-Po = Po(1- η)/ η, Where Pi = Input power, Po = Output Power and η = Efficiency Determine airflow from airflow derating graph using data points for Pd=7 .53 W and T a = 40 °C Minimum airflow= 200 ft./min. T o check that the maximum case temp of 100 °C is not exceeded: Maximum temperature rise is ΔT = Pd × Rca=7 .53x5.4 = 40.67°C. Maximum case temperature is Tc=T a+ ΔT=80.67°C <100°C. Where: Rca is the thermal resistance from case to ambient environment. T a is ambient temperature and Tc is case temperature. Note: C4 UNITED CHEMI-CON KXJ series or equivalent, CY1, CY2 MURATA Y1 capacitors or equivalent, L1, L2 BULL WILL URT24-05055H or equivalent.
08 March 18
EMC Filter - EN55032 Emissions and Immunity +V o -V o-Vin GND +Vin L1 L2 D1 C1 C4C2 C3 C6 CY1 CY2 RDF50 CASE +Vin -Vin +Vout -Vout C 1 , C 3, C 3 C 4 C 5 C 6 C Y1 , C Y2 D 1 L1 , L2 1 µF/250 V 1812 Ceramic Cap. 82 µF/250 V KXJ Series Aluminium Cap. 1 µF/100 V 1206 Ceramic Cap. 22 µF/100 V Solid Aluminium Cap. 1500 pF 1.5 KE 180 A URT24-50055H 5.5 mH Thermal Resistance Information Po wer Dissip at ed v s Am bient T em pe ra tu re and A ir F low wi th out he at sink Am bient Temp erature ,Ta(Deg. C) Power Disspated ,Pd(Watts) Natur al C onv ecti on 20 f t./mi n. (0.1 m /s ) 10 0 ft ./min. (0.5 m/ s) 20 0 ft ./min. (1.0 m/ s) 30 0 ft ./min. (1.5 m/ s) 40 0 ft ./min. (2.0 m/ s) Air Flow R ate Typical R ca Natural Convection 20 ft/min (0.1 m/s) 10.1 °C/W 100 ft/min (0.5 m/s) 8.0 °C/W 200 ft/min (1.0 m/s) 5.4 °C/W 300 ft/min (1.5 m/s) 4.4 °C/W 400 ft/min (2.0 m/s) 3.4 °C/W