xppower.com 20 Watts RDC Series 72 & 110 VDC Input for Railway Applications Single and Dual Outputs 1500 VAC Basic Isolation High Power Density High Efficiency Up to 88% Remote On/Off 3 Year Warranty Specification Input General Input Voltage Range 72 V (36-140 VDC), 110 V (55-176 VDC) Efficiency See table Input Current See table Isolation Voltage 1500 VAC Input to Output Input Reflected Ripple 20 mA pk-pk through 12 H inductor 1600 VDC Input to Case Input Filter Pi network 1600 VDC Output to Case Undervoltage Lockout 72 V models: ON 33.5 V, OFF 30.5 V typ. Isolation Capacitance 2000 pF 110 V models: ON 52.5 V, OFF 48.5 V typ. Switching Frequency 270 kHz typical Input Surge 72 V models 150 VDC for 100 ms 3 Power Density 25 W/in 110 V models 185 VDC for 100 ms MTBF 400 kHrs min to MIL-HDBK-217F at 25 C, GB Output Output Voltage See table Environmental Output Voltage Trim 10% on single outputs models only Minimum Load No minimum load required Operating Temperature -40 C to +85 C (see derating curve) Line Regulation 0.2% max Case Temperature +105 C max Load Regulation Single output models: 0.5% max, Cooling Convection-cooled Dual output models: 1% max balanced Operating Humidity 5-95% RH, non-condensing outputs Storage Temperature -40 C to +125 C Cross Regulation 5% (see note 2) Setpoint Accuracy 1% Start Up Time 30 ms typical EMC Ripple & Noise 100 mV or 1% pk-pk for single output General Complies with EN50121-3-2, Railway models, 150 mV or 1% pk-pk for dual Applications - Electromagnetic output model, whichever is greater, Compatibility for Rolling Stock Apparatus 20 MHz bandwidth (see note 3) Emissions EN55011, 79 dBV (0.15-0.5 MHz) Transient Response 4% max deviation, recovery to within 73 dBV (0.5-30 MHz) 1% in <500 s for a 25% load change ESD Immunity EN61000-4-2, level 3, Perf Criteria A Temp. Coefficient 0.02%/C Radiated Immunity EN61000-4-3 20 V/m Perf Criteria A* Overvoltage Protection 3.3 V models: 3.9 V typical, 5 V models: EFT/Burst EN61000-4-4 level 3, Perf Criteria A* 6.2 V typical, 12 V models: 15 V typical Surge EN61000-4-5 level 2, Perf Criteria A 15 V models: 18 V typical, 5 V models: Conducted Immunity EN61000-4-6 10 V/rms, Perf Criteria A 6.2 V typical, 12 V models: 15 V typical 15 V models: 18 V typical Magnetic Field EN61000-4-8 10 A/m, Perf Criteria A Overload Protection >150% of full load Short Circuit Protection Trip & restart (hiccup mode), auto recovery *External input capacitor required 220 F/250 V Overtemperature 115 C typical Protection Remote On/Off On = Logic High (>3.0) or Open Off = Logic Low (<1.2 V) or short pin 2 to 3 Maximum Capacitive See table Load DC DCDC DC RDC20 Models and Ratings (1) Input Current Maximum (4) Input Voltage Output Voltage Output Current Efficiency Model Number Capacitive Load No Load Full Load 3.3 V 6.00 A 20 mA 312 mA 10000 F 88.0% RDC2072S3V3 5.0 V 4.00 A 25 mA 313 mA 6800 F 88.5% RDC2072S05 12.0 V 1.65 A 15 mA 318 mA 1000 F 86.5% RDC2072S12 36-140 VDC 15.0 V 1.33 A 20 mA 318 mA 700 F 87.0% RDC2072S15 5.0 V 2.00 A 35 mA 319 mA 1000 F 87.0% RDC2072D05 12.0 V 0.83 A 20 mA 323 mA 470 F 85.5% RDC2072D12 15.0 V 0.67 A 20 mA 324 mA 330 F 86.0% RDC2072D15 3.3 V 6.00 A 15 mA 208 mA 10000 F 86.5% RDC20110S3V3 5.0 V 4.00 A 20 mA 209 mA 6800 F 87.0% RDC20110S05 12.0 V 1.65 A 15 mA 212 mA 1000 F 85.0% RDC20110S12 55-176 VDC 15.0 V 1.33 A 15 mA 211 mA 700 F 86.0% RDC20110S15 5.0 V 2.00 A 30 mA 211 mA 1000 F 86.0% RDC20110D05 12.0 V 0.83 A 15 mA 215 mA 470 F 84.0% RDC20110D12 15.0 V 0.67 A 15 mA 215 mA 330 F 85.0% RDC20110D15 Notes 1. Input current specified at nominal 72 V or 110 V input. 3. Measured with 1 F ceramic capacitor in parallel with 10 F electrolytic 2. Cross regulation for duals is 5% when one output is at 100% and the other is capacitor across output rails. varied between 25% and 100%. 4. Add suffix -HK for optional heatsink. Mechanical Details 0.10 0.40 0.40 0.10 0.40 Optional (2.54) (10.16) (10.16) (2.54) (10.16) Heatsink PIN CONNECTIONS 0.10 Pin Single Dual (2.54) 4 5 6 1 +Vin +Vin 2 -Vin -Vin 0.10 0.02 3 Remote On/Off Remote On/Off (2.54) (0.50) 4 +Vout +Vout DIA 5 -Vout Com 0.04 Bottom View 1.73 2.00 6 Trim -Vout (1.00) (43.9) (50.8) DIA Single & Dual 0.04 Output Models (1.00) Notes 1. All dimensions are in inches (mm). 0.17 2. Weight: 0.07 lbs (30 g) approx (4.36) 3. Pin diameter: 0.04 0.002 (1.0 0.05) 1 2 3 0.32 4. Pin pitch tolerance: 0.014 (0.35) (8.00) 5. Case tolerance: 0.02 (0.5) 0.20 0.24 0.64 0.30 0.30 (5.08) (6.00) (16.3) (7.62) (7.62) Application Notes Derating Curve External Output Trim On single output versions only. 100 6 6 90 Output can be externally trimmed using this method. 80 R trim-up R trim-down Contact sales for details. 70 5 4 60 without heat-sink 50 with heat-sink 40 Typical Resistor S3V3 S05 S12 S15 30 Trim Down 10% 15.3 k 5.31 k 5.3 k 5.8 k 20 Trim Up 10% 10.3 k 10.6 k 22.1 k 20.0 k 10 0 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 Ambient Temperature (C) 03-Mar-14 Load (%)