DC-DC 7.5 Watts xppower.com WR Series • 2:1 Input Range • DIP-24 Metal Package • -25 °C to +100 °C Operating Temperature • 1500 VDC Isolation • Efficiency to 83% • Input Pi Filter • Continuous Short Circuit Protection Specification Input General Input Voltage Range • 12 V (9-18 VDC) 24 V (18-36 VDC) 48 V (36-72 VDC) Input Current (no load) • See table Input Filter • Pi network Undervoltage Lockout • Turn On >70% nominal input Turn Off <65% nominal input Output Output Voltage Start Up Delay Initial Set Accuracy Line Regulation Load Regulation • • • • • Cross Regulation Transient Response • • Ripple & Noise Overload Characteristics Short Circuit Protection Temperature Coefficient • • See table 900 ms max ±2.0% max ±0.2% max ±0.5% max single output models, ±1.0% max dual output models, for 75% load change ±1.5% on dual output models <1% max deviation, recovery to within 1% in 200 µs for a 50% load change 100 mV max pk-pk, 20 MHz BW 110-130% constant current • Continuous with auto recovery • 0.05%/˚C max Efficiency Isolation Voltage Switching Frequency MTBF • • • • See table 1500 VDC min Input to Output (1000 MΩ) 300 kHz typical 900 kHrs to MIL-HDBK-217F Environmental Operating Temperature • -25 ˚C to +100 ˚C (see derating curve) Case Temperature • +100 ˚C max Storage Temperature • -40 ˚C to +100 ˚C EMC Emissions ESD Immunity Radiated Immunity Conducted Immunity • EN55022, level A conducted EN55022, level A radiated • EN61000-4-2, level 2 Perf Criteria A • EN61000-4-3 3 V/m Perf Criteria A • EN61000-4-6 3 V rms Perf Criteria A Input Voltage(1) Input Current(2) Efficiency Model Number 557 mA 74% WR200 801 mA 78% WR201 25 mA 762 mA 82% WR202 500 mA 25 mA 762 mA 82% WR203 ±5.0 VDC ±750 mA 30 mA 791 mA 79% WR204 ±12.0 VDC ±310 mA 30 mA 753 mA 83% WR205 ±15.0 VDC ±250 mA 30 mA 753 mA 83% WR206 3.3 VDC 1500 mA 20 mA 271 mA 76% WR300 5.0 VDC 1500 mA 20 mA 396 mA 79% WR301 12.0 VDC 625 mA 20 mA 381 mA 82% WR302 15.0 VDC 500 mA 20 mA 381 mA 82% WR303 ±5.0 VDC ±750 mA 25 mA 386 mA 81% WR304 ±12.0 VDC ±310 mA 25 mA 377 mA 83% WR305 ±15.0 VDC ±250 mA 25 mA 377 mA 83% WR306 3.3 VDC 1500 mA 10 mA 136 mA 76% WR400 5.0 VDC 1500 mA 10 mA 195 mA 80% WR401 12.0 VDC 625 mA 10 mA 190 mA 82% WR402 15.0 VDC 500 mA 10 mA 190 mA 82% WR403 ±5.0 VDC ±750 mA 15 mA 193 mA 81% WR404 ±12.0 VDC ±310 mA 15 mA 188 mA 83% WR405 ±15.0 VDC ±250 mA 15 mA 188 mA 83% WR406 9-18 VDC 18-36 VDC 36-72 VDC Output Voltage Output Current No Load Full Load 3.3 VDC 1500 mA 25 mA 5.0 VDC 1500 mA 25 mA 12.0 VDC 625 mA 15.0 VDC Notes 1. Nominal input voltage is 12 VDC for WR2xx models, 24 VDC for WR3xx models and 48 VDC for WR4xx models. 2. Input current is at nominal input voltage. Mechanical Details All dimensions are in inches (mm) Weight: 0.08 lbs (35 g) approx. PIN CONNECTIONS 0.02 (0.5) 0.18 (4.5) 23 22 2 3 0.10 1.25 (2.5) (31.8) 16 15 14 0.4 (10.2) 9 10 11 0.60 (15.2) 0.15 (3.8) Pin Single Output Dual Output 2 -V input -V input 3 -V input -V input 9 N/C Common 10 N/C N/C 11 N/C -V output 14 +V output +V output 15 N/C N/C 16 -V output Common 22 +V input +V input 23 +V input +V input 0.80 (20.3) Derating Curve 100 Load (%) 80 60 40 20 0 -20 -10 0 10 20 30 40 50 60 Ambient Temperature (ºC) 70 80 90 100 17-Apr-07 DC-DC WR Series Models and Ratings