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| DC-DC 20 Watts WE Series * * * * * * * High Power Density Fully Regulated Outputs Efficiency to 86% Low Voltage Outputs Remote On/Off 2:1 Input Range 2.5, 3.3 & 5 V Versions xppower.com Specification Input Input Voltage Range Input Current Input Filter Undervoltage Lockout * 24 V (18-36 VDC) 48 V (36-72 VDC) * See table * Pi network * Turn On > 62% nominal input Turn Off < 61% nominal input General Efficiency Isolation Switching Frequency MTBF * * * * See table 500 VDC Input to Output 500 kHz typical 1,500 kHrs to MIL-HDBK-217F Environmental Operating Temperature Case Temperature Storage Temperature EMI/RFI * * * * -40 C to +70 C +100 C max -40 C to +100 C Six-sided continuous shield Output Output Voltage Output Voltage Adjustment Minimum Load Line Regulation Load Regulation Transient Response Ripple & Noise Overcurrent Protection Short Circuit Protection Temperature Coefficient Remote On/Off * 2.5, 3.3, 5 V single * 10% * * * * * * * * 10% 0.2% max 1.0% max for 25% to 100% load change <500 s for a 25% step load change 75mV pk-pk max, 20MHz BW 110-140% of nominal Continuous 0.02 /C max EMC & Safety 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 * On > 5.5 VDC or open circuit Off < 1.8 VDC, control common referenced to -Vin DC-DC Models and Ratings Input Voltage (1) WE Series Output Current 5000 mA 5000 mA 4000 mA 5000 mA 5000 mA 4000 mA Input Current (2) No Load Full Load 35 mA 45 mA 45 mA 25 mA 35 mA 35 mA 645 mA 828 mA 981 mA 318 mA 410 mA 485 mA Efficiency 81% 83% 84% 82% 84% 86% Model Number WE320 WE300 WE301 WE420 WE400 WE401 Output Voltage 2.5 VDC 3.3 VDC 5.0 VDC 2.5 VDC 18-36 VDC 36-72 VDC 3.3 VDC 5.0 VDC Notes 1. Nominal input voltage is 24 VDC for WE3xx model numbers and 48 VDC for WE4xx model numbers. 2. Input current is at nominal input voltage. Mechanical Details All dimensions are in inches (mm) Weight: 0.08 lbs (35 g) approx. Case Material: Copper with non-conductive base 2.00 (50.8) 0.40 (10.2) 0.22 (5.6) min 1.80 (45.7) 0.20 (5.1) 3 0.20 (5.1) 1.00 (25.4) 0.40 (10.2) 0.40 (10.2) 1 0.20 (5.1) 4 0.10 (2.54) +Vout (6) +Vout (6) TRIM DOWN +Vout (6) 0.10 (2.54) 6 0.40 (10.2) 2 BOTTOM VIEW 5 PIN CONNECTIONS TRIM (4) TRIM UP +Vout (5) +Vout (5) +Vout (5) TRIM (4) TRIM (4) Pin 1 2 3 4 Function Remote On/Off -V input +V input Trim -V output +V output Typical resistor values To Trim Up 6k8 = +10% 100k = +1% To Trim Down 6k8 = -10% 100k = -1% 5 6 04/04/05 |
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