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VQB125-D48-S1 Datasheet(PDF) 2 Page - CUI INC |
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VQB125-D48-S1 Datasheet(HTML) 2 Page - CUI INC |
2 / 3 page rev. page date DESCRIPTION: DC/DC converter 2 of 3 08/2007 20050 SW 112th Ave. Tualatin, Oregon 97062 phone phone 503.612.2300 fax fax 503.612.2382 PART NUMBER: VQB125 series NOTES: 1. measured from high line to low line 2. measured from full load to 1/4 load 3. suffix “N” to the model number with negative logic remote ON/OFF module ON <1.2 VDC module OFF open circuit or logic high 4. output ripple and noise is measured with 10 µF tantalum and 1 µF ceramic capacitor across output. INPUT input voltage range 48V: 36-75V under voltage lockout 48 Vin power up 35 V 48 Vin power down 33 V input filter LC type logic compatibility CMOS or open collector TTL module ON open circuit or logic high module OFF <12 VDC OUTPUT voltage accuracy ±1.0% max. transient response: 25% step load change <500 µS ripple & noise 20MHz BW 100 mV p-p max. temperature coefficient ±0.03%/°C max. line regulation1 single/dual ±0.2% max. load regulation2 single/dual ±0.5% max. over-voltage protection 115-140% output current limit % nom. output 110-140% short circuit protection continuous/hiccup external trim adj. ±10% GENERAL SPECIFICATIONS efficiency see table isolation voltage 2250VDC min. isolation resistance 107 Ohm min. switching frequency 250KHz, typ. over temperature protection 120°C typ. operating temp. range -40°C to 85°C storage temp. -40°C to 125°C dimensions 2.3x1.45x0.36 inches (58.4x36.8x9.2mm) weight 50 g |
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