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| UM1500 SERIES 15 to 20 Watt DC-DC Converters Surface Mount Technology Efficiency 82% Wide Input Range 10.2 Watt/Cubic Inch Remote On/Off Control Low Profile SPECIFICATIONS All specifications are typical at nominal line, full load and 25C unless otherwise noted. GENERAL SPECIFICATIONS Remote On/Off Control ................................ See Below Efficiency .................................................... See Table Isolation Voltage ..................................... 500 VDC min. 8 Isolation Resistance ................................ 10 ohms min. Switching Frequency Single/Dual ............................................. 330KHz typ. Triple .................................................... 200KHz typ. Operating Temperature Range, Ambient, 15W,None Derating .................. -40C to +71C 20W, None Derating ................. -40C to +60C Cooling .......................................... Free Air Convection Storage Temperature Range .................. -55C to +105C Dimensions Case J .......................... 2.0x1.6x0.46 Inches (50.8x40.6x11.7 mm) Case Material ........................ Black Coated Copper With Non-Conductive Base Weight ............................................................... 50g INPUT SPECIFICATIONS Input Voltage Range, 15W ................................. 48V Nominal, 18-72 VDC 20W ................................. 24V Nominal, 18-36 VDC 48V Nominal, 36-72 VDC Input Filter ................................................. Pi Network OUTPUT SPECIFICATIONS Voltage Accuracy, Single Output ......................1% max. Dual,+Output ....................... 1% max. -Output ...................... 2% max. Triple, 5V ........................... 1% max. 12V/15V ................... 3% max. Voltage Balance, Dual Output at Full Load ............................................................ 2.0% max. Transient Response, Single, Dual , 25% Step Load Change, 1% Error Band ........................................ <500u sec. External Trim Adj. Range ..................................... +10% 1 Ripple and Noise , 20MHz BW .............. 15mV RMS max. 75mV P-P max. Temperature Coefficient ...................... 0.02/C max. Short Circuit Protection ................................ Continuous Overvoltage Protection Trip Point ( Zener Clamp Type ) 5V ................................................................ 6.8V 12V ................................................................. 15V 15V ................................................................. 18V 2 Line Regulation , Single/Dual Output .............. 0.5% max. Triple Output .......................... 1% max. 3 Load Regulation ,Single Output ...................... 0.5% max. Dual Output ......................... 1% max. Triple Output +5V ................. 1% max. Auxiliaries ........ 5% max. NOTES: 1. Measured with 3.3uF/25V tantalum capacitor across each output for triple output models,0.1uF ceramic capacitor across each output for single and dual output models. 2. Measured from high line to low line. 3. Measured from full load to specified load with all other outputs at rated load: singe: full load to 1/4 load; dual outputs loaded balanced from full load to 1/2 load, triple: full load to 1/10 load. REMOTE ON/OFF CONTROL Control Input ............................................... Pin 1 Control Common ......................................... Pin 3 Logic Compatibility............................................. ........................... CMOS or Open Collector TTL Control Voltage................................................... On ............................ >+2.5 VDC or Open Circuit Off ....................... < +0.8 VDC or Jumper to Pin 3 Converter Shutdown Idle Current .................. 10 mA UMEC INTERNATIONAL UM1500 1 OF 2 32539 W. 237TH STREET, SUITE A TORRANCE, CA 90505 TEL: (310) 326-7072 FAX: (310) 326-7058 REV.4 |
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