S E R I E S Specifications W20 INPUT SPECIFICATIONS: Input Voltage Range................................................................................................................................................... 24V......................................................18-36V 48V......................................................36-72V Input Filter...................................................................................................................................................................................................................................Pi Type 20 WATT WIDE INPUT DC-DC CONVERTERS Features • 20W Isolated Output • Efficiency to 86% • 2:1 Input Range • Pi Input Filter • Continuous Short Circuit Protection • Remote On/Off Option Voltage Accuracy ............................................................................................................................................................................................................ ±1.0% max. Transient Response: Single 25% Step Load Change...................................................................................................................................................... <500u sec. Minimum Output Curreut .............................................................................................................................................................................................................10% Output Voltage Trim Range .......................................................................................................................................................................................................±10% Ripple & Noise, 20MHz BW..........................................................................................................................................................................................75mV p-p max. Temperature Coefficient........................................................................................................................................................................................... ±0.02%/˚C max. Line Regulation1, Single Output ........................................................................................................................................................................................±0.2% max. Load Regulation2, Single Output ......................................................................................................................................................................................±1.0% max. Short Circuit Protection ....................................................................................................................................................................................................Continuous Current Limit Threshold Range, % Io rated....................................................................................................................................................................110% ~140% External Trim Adj. Range ............................................................................................................................................................................................................±10% Remote On/Off Control: Logic Compatibility..............................................................................................................................................................COMS or Open Collector TTL EC-ON........................................................................................................................................................................................>+5.5VCD or Open Circuit EC-OFF....................................................................................................................................................................................................................< 1.8 VDC Control Common....................................................................................................................................................................Referenced to Input Minus GENERAL SPECIFICATIONS: Efficiency..............................................................................................................................................................................................................................See Table Isolation Voltage .......................................................................................................................................................................................................... 500 VDC min. Isolation Resistance ...................................................................................................................................................................................................10 8 Ohms min. Switching Frequency ...................................................................................................................................................................................................... 500KHz Typ. Operating Temperature Range............................................................................................................................................................................... -25˚C to +71˚C Case Temperature........................................................................................................................................................................................................... 100˚C max Storage Temperature Range ................................................................................................................................................................................. -40˚C to +100˚C EMI / RFI..................................................................................................................................................................................................Six Sided Continuous Shield Dimensions............................................................................................................................................................................2 x1 x 0.4 inches (50.8x25.4x10.2 mm) Case Material ..............................................................................................................................................Black Coated Copper with Non-Conductive Base NOTE: 1. Measured From High Line to Low Line. 2. Measured From Full Load to 1/4 Load. CASE B All Dimensions In Inches(mm) Tolerance .xx= ±.04, .xxx= ±.010 MODEL NUMBER INPUT VOLTAGE W20-24S2.5 W20-24S3.3 18-36 VDC OUTPUT VOLTAGE W20-48S3.3 36-72 VDC INPUT CURRENT NO LOAD FULL LOAD %EFF 5000 mA 35 mA 645 mA 81 3.3 VDC 5000 mA 45 mA 828 mA 83 5 VDC 4000 mA 45 mA 981 mA 85 2.5 VDC 5000 mA 25 mA 318 mA 82 3.3 VDC 5000 mA 35 mA 410 mA CASE PIN CONNECTION 2.5 VDC W20-24S5 W20-48S2.5 OUTPUT CURRENT 84 2.00 (50.80) B 0.40 (10.2) 0.22 min. (5.6) 5 VDC 4000 mA 35 mA 485 mA 86 1. 2. 3. 4. 5. 6. 7. 8. 9. Remote ON/OFF N0 Pin -Vin +vin Trim NP -Vout NP +Vout NC: NO CONNECTION NP: NO PIN B 0.20 (5.08) 1.00 (25.4) 0.20 0.20 4 8 3 7 0.20 (5.08) 0.20 6 0.20 1 0.20 0.10 (2.54) 9 2 NOTE : 1. Nominal Input Voltage 24 or 48 VDC Function 1.80 (45.72) 0.20 W20-48S5 Pin 0.20 5 0.10 (2.54) All Specifications Typical At Nominal Line, Full Load and 25˚C Unless Otherwise Noted. W20 OUTPUT SPECIFICATIONS: