DC-DC 25-30 Watts xppower.com WF Series • 2:1 Input Range • Efficiency to 85% • Input Pi Filter • Single, Dual & Triple Outputs • Remote On/Off • Six-sided Metal Case • External Output Trim Specification Input Input Voltage Range Input Current Input Filter Undervoltage Lockout General • • • • See table See Table Pi network Turn On >70% nominal input Turn Off <65% nominal input Output Initial Set Accuracy Output Voltage Adjustment Minimum Load Voltage Balance Dual Output Line Regulation Efficiency Isolation Voltage Isolation Resistance Switching Frequency MTBF • • • • • See table 500 VDC min (3000 VDC for ‘U’ version) 109 ohms min 300 kHz typical >800 kHrs to MIL-STD-217F Environmental • Single output models: ±2% max Dual output models: ±2% max V1 ±3% max V2 Triple output models: ±2% max V1 ±5% max V2 & V3 • ±10% (except triple output models) Operating Temperature • -25 ˚C to +100 ˚C (see derating curve) Storage Temperature • -40 ˚C to +100 ˚C EMI/RFI • Six-sided continuous shield EMC & Safety Emissions • Triple output models only • ±1.0% max at full load • ±0.5% max single & dual output models, ±1.0% max triple output models Load Regulation • ±1.0% max single & dual output models, ±5.0% max triple output models Transient Response • 5% max deviation, recovery to within 1% in 500 µs for a 25% step load change Ripple & Noise • 10 mV RMS max 75 mV pk-pk max, 20 MHz BW Short Circuit Protection • Continuous, trip & restart (hiccup mode) with auto recovery Temperature • 0.02%/˚C max Coefficient • On >5.5 VDC or open circuit Remote On/Off Off <1.8 VDC or short to Vin ESD Immunity Radiated Immunity Conducted Immunity Safety Approvals • 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 • UL60950-1 for ‘U’ versions only Input Voltage Output Voltage 3.3 5.0 12.0 15.0 ±5.0 ±12.0 ±15.0 5.0/±12.0 5.0/±15.0 3.3 5.0 12.0 15.0 ±5.0 ±12.0 ±15.0 5.0/±12.0 5.0/±15.0 3.3 5.0 12.0 15.0 ±5.0 ±12.0 ±15.0 5.0/±12.0 5.0/±15.0 9-18 VDC 18-36 VDC 36-72 VDC Input Current No Load Full Load Output Current VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC VDC 5.00 5.00 2.50 2.00 ±2.50 ±1.25 ±1.00 3.50/±0.31 3.50/±0.25 5.00 5.00 2.50 2.00 ±2.50 ±1.25 ±1.00 3.50/±0.31 3.50/±0.25 5.00 5.00 2.50 2.00 ±2.50 ±1.25 ±1.00 3.50/±0.31 3.50/±0.25 A A A A A A A A A A A A A A A A A A A A A A A A A A A 30 30 30 30 35 35 35 35 35 30 30 30 30 30 30 30 30 30 20 20 20 20 25 25 25 25 25 mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA 1.86 2.67 3.05 3.05 2.67 3.05 3.05 2.64 2.64 0.92 1.34 1.52 1.52 1.34 1.47 1.47 1.32 1.32 0.46 0.66 0.76 0.76 0.66 0.73 0.73 0.65 0.65 Efficiency Model Number(1) 74% 78% 82% 82% 78% 82% 82% 79% 79% 75% 79% 82% 82% 79% 85% 85% 80% 80% 75% 79% 82% 82% 79% 85% 85% 80% 80% WF100 WF101 WF102 WF103 WF104 WF105 WF106 WF107 WF108 WF200 WF201 WF202 WF203 WF204 WF205 WF206 WF207 WF208 WF300 WF301 WF302 WF303 WF304 WF305 WF306 WF307 WF308 A A A A A A A A A A A A A A A A A A A A A A A A A A A Notes 1. For optional UL60950-1 approved product, add suffix ‘U’ to model number. Mechanical Details All dimensions are in inches (mm) Weight: 0.15 lbs (66 g) approx. Case Material: Black coated copper with non-conductive base. 0.40 0.40 0.40 0.40 (10.16) (10.16) (10.16) (10.16) 8 7 6 5 1.80 (45.7) BOTTOM VIEW 2.00 (50.8) OPERATING LIMITS AND OUTPUT POWER RANGE Output Power (%) 100 4 3 2 0.90 (22.9) 1 0.20 (5.1) 2.00 (50.8) CONVECTION COOLING PIN CONNECTIONS Dual Output Triple Output 1 2 3 4 5 6 7 8 Remote On/Off No pin -V input +V input Output trim -Output +Output No pin Remote On/Off No pin -V input +V input Output trim -Output Common +Output Remote On/Off No pin -V input +V input -Output Common +5V Output +Output 7 8&5 8&5 0.04 (1.02) NATURAL DIA 50 Single Output Output Pin No. 75 0.22 (5.6) 25 min Pin 0.40 (10.2) TRIPLE OUTPUT LOADING TABLE(1) Current Voltage Minimum(2) +5 +12 or -12 +15 or -15 0.50 A 0.10 A 0.10 A Maximum 3.50 A 0.31 A 0.25 A Notes 1. Maximum total power from all outputs is limited to 25 W but no output should be allowed to exceed its maximum current. 2. Minimum current on each output is required to maintain specified regulation. 0 +20Notes +40 +60 -20 Application +80 +100 ˚C External Output Trimming Derating Curve 100 Load (%) 80 PIN 7 60 10K 40 PIN 6 20 TRIM UP 0 -20 -10 0 10 20 30 40 50 60 Ambient Temperature (ºC) 70 80 90 100 TRIM DOWN TRIM UP/DOWN Output may optionally be externally trimmed (±10%) with a fixed resistor 10K or external trimpot as shown PIN 5 08-Apr-08 DC-DC WF Series Models and Ratings