DCDC 20 Watts xppower.com 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 Input Voltage Range Input Current Input Reflected Ripple Input Filter Undervoltage Lockout Input Surge General * * * * * 72 V (36-140 VDC), 110 V (55-176 VDC) See table 20 mA pk-pk through 12 H inductor Pi network 72 V models: ON 33.5 V, OFF 30.5 V typ. 110 V models: ON 52.5 V, OFF 48.5 V typ. * 72 V models 150 VDC for 100 ms 110 V models 185 VDC for 100 ms Output Output Voltage Output Voltage Trim Minimum Load Line Regulation Load Regulation * * * * * Cross Regulation Setpoint Accuracy Start Up Time Ripple & Noise * * * * Transient Response * Temp. Coefficient * Overvoltage Protection * Overload Protection Short Circuit Protection Overtemperature Protection Remote On/Off Maximum Capacitive Load * * * See table 10% on single outputs models only No minimum load required 0.2% max Single output models: 0.5% max, Dual output models: 1% max balanced outputs 5% (see note 2) 1% 30 ms typical 100 mV or 1% pk-pk for single output models, 150 mV or 1% pk-pk for dual output model, whichever is greater, 20 MHz bandwidth (see note 3) 4% max deviation, recovery to within 1% in <500 s for a 25% load change 0.02%/C 3.3 V models: 3.9 V typical, 5 V models: 6.2 V typical, 12 V models: 15 V typical 15 V models: 18 V typical, 5 V models: 6.2 V typical, 12 V models: 15 V typical 15 V models: 18 V typical >150% of full load Trip & restart (hiccup mode), auto recovery 115 C typical * On = Logic High (>3.0) or Open Off = Logic Low (<1.2 V) or short pin 2 to 3 * See table Efficiency Isolation Voltage Isolation Capacitance Switching Frequency Power Density MTBF * See table * 1500 VAC Input to Output 1600 VDC Input to Case 1600 VDC Output to Case * 2000 pF * 270 kHz typical * 25 W/in3 * 400 kHrs min to MIL-HDBK-217F at 25 C, GB Environmental Operating Temperature Case Temperature Cooling Operating Humidity Storage Temperature * * * * * -40 C to +85 C (see derating curve) +105 C max Convection-cooled 5-95% RH, non-condensing -40 C to +125 C EMC General Emissions ESD Immunity Radiated Immunity EFT/Burst Surge Conducted Immunity Magnetic Field * Complies with EN50121-3-2, Railway Applications - Electromagnetic Compatibility for Rolling Stock Apparatus * EN55011, 79 dBV (0.15-0.5 MHz) 73 dBV (0.5-30 MHz) * EN61000-4-2, level 3, Perf Criteria A * EN61000-4-3 20 V/m Perf Criteria A* * EN61000-4-4 level 3, Perf Criteria A* * EN61000-4-5 level 2, Perf Criteria A * EN61000-4-6 10 V/rms, Perf Criteria A * EN61000-4-8 10 A/m, Perf Criteria A *External input capacitor required 220 F/250 V Input Voltage Output Voltage Output Current 36-140 VDC 3.3 5.0 12.0 15.0 5.0 12.0 15.0 V V V V V V V 6.00 A 4.00 A 1.65 A 1.33 A 2.00 A 0.83 A 0.67 A 55-176 VDC 3.3 5.0 12.0 15.0 5.0 12.0 15.0 V V V V V V V 6.00 A 4.00 A 1.65 A 1.33 A 2.00 A 0.83 A 0.67 A Input Current(1) No Load Full Load 20 mA 312 mA 25 mA 313 mA 15 mA 318 mA 20 mA 318 mA 35 mA 319 mA 20 mA 323 mA 20 mA 324 mA 15 20 15 15 30 15 15 mA mA mA mA mA mA mA 208 209 212 211 211 215 215 Maximum Capacitive Load mA mA mA mA mA mA mA Efficiency Model Number(4) 10000 6800 1000 700 1000 470 330 F F F F F F F 88.0% 88.5% 86.5% 87.0% 87.0% 85.5% 86.0% RDC2072S3V3 RDC2072S05 RDC2072S12 RDC2072S15 RDC2072D05 RDC2072D12 RDC2072D15 10000 6800 1000 700 1000 470 330 F F F F F F F 86.5% 87.0% 85.0% 86.0% 86.0% 84.0% 85.0% RDC20110S3V3 RDC20110S05 RDC20110S12 RDC20110S15 RDC20110D05 RDC20110D12 RDC20110D15 Notes 1. Input current specified at nominal 72 V or 110 V input. 2. Cross regulation for duals is 5% when one output is at 100% and the other is varied between 25% and 100%. 3. Measured with 1 F ceramic capacitor in parallel with 10 F electrolytic capacitor across output rails. 4. Add suffix `-HK' for optional heatsink. Mechanical Details 0.10 (2.54) 0.10 (2.54) 0.40 0.40 (10.16) (10.16) 4 0.10 (2.54) 0.32 (8.00) Bottom View 0.02 (0.50) 1.73 (43.9) Single & Dual Output Models 1 3 2 0.30 (7.62) 2.00 (50.8) DIA 0.04 (1.00) Notes 1. 2. 3. 4. 5. 0.17 (4.36) 0.20 0.30 (5.08) (7.62) PIN CONNECTIONS Single Dual +Vin +Vin -Vin -Vin Remote On/Off Remote On/Off +Vout +Vout -Vout Com Trim -Vout Pin 1 2 3 4 5 6 6 5 0.10 (2.54) DIA 0.04 (1.00) Optional Heatsink 0.40 (10.16) 0.24 (6.00) All dimensions are in inches (mm). Weight: 0.07 lbs (30 g) approx Pin diameter: 0.04 0.002 (1.0 0.05) Pin pitch tolerance: 0.014 (0.35) Case tolerance: 0.02 (0.5) 0.64 (16.3) Application Notes Derating Curve External Output Trim On single output versions only. 100 6 90 80 R trim-up Load (%) 70 5 60 6 R trim-down 4 Output can be externally trimmed using this method. Contact sales for details. without heat-sink 50 with heat-sink 40 30 Trim Down 10% Trim Up 10% 20 Typical Resistor S3V3 S05 15.3 k 5.31 k 10.3 k 10.6 k S12 5.3 k 22.1 k S15 5.8 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 DCDC RDC20 Models and Ratings