www.pairuigroup.com page: 1 / 4 date: 01/23/2014 dc-dc converter bricks, open/enclosed bcq series, 1/4 brick, two outputs, up to 65w features: 5 years warranty 1500vdc isolation voltage two outputs efficiency up to 87% operating temperature range -40c to +85c under voltage, over current, short circuit, over voltage protection remote on/off adjustable output voltage model input voltage (vdc) vout/iout 1 (vdc/a) vout/iout 2 (vdc/a) efficiency typ. bcq48-33v8-12v8 48(36~72) 3.3/8.0 1.2/8.0 85% bcq48-33v8-12v13 3.3/8.0 1.2/13.0 85% bcq48-33v8-15v8 3.3/8.0 1.5/8.0 85% bcq48-33v8-15v12 3.3/8.0 1.5/12.0 85% bcq48-33v8-18v8 3.3/8.0 1.8/8.0 85% bcq48-33v8-18v10 3.3/8.0 1.8/10.0 85% bcq48-33v8-25v8 3.3/8.0 2.5/8.0 85% bcq48-33v9-25v8 3.3/9.0 2.5/8.0 85% bcq48-50v3-33v4 5.0/3.0 3.3/3.5 85% bcq48-50v6-33v7 5.0/6.0 3.3/7.0 85% BCQ48-120V7-120V7 12.0/ 2.7 87% notes: other input and output models may available on reques t. electrical input voltage range 48vdc 36-72vdc remote control negative logic off: high level or left close on: low level or grounded output power input voltage range 30-65w output voltage accuracy input voltage range full load range 1% 3% output voltage adjustable positive 10% line regulation full load vo1,vo2 0.2% load regulation 10%-100% full load vo1,vo2 0.5% dynamic response (transient/recovery time) 25%-50%-75% load capability ?vo/?t: 4.0%/500s ripple and noise parallel test, 20mhz wide range 80mvp-p max .
www.pairuigroup.com page: 2 / 4 date: 01/23/2014 dc-dc converter bricks, open/enclosed bcq series, 1/4 brick, two outputs, up to 65w electrical operating frequency typical value 300khz typ. isolation voltage input to output 1500vdc isolation resistance --- 10m safety --- iec-60950-1, ul-60950-1 en-60950-1, gb4943 temperature coefficient --- 200ppm operating temperature range auxiliary heat sink -40c to +85c storage temperature range --- -40c to +100c over temperature protection typical 110c typ. under voltage protection --- yes over current protection --- yes short circuit protection --- yes over voltage protection --- yes relative humidity --- 95% max. packing --- hole package mtbf bellcore tr-332, 25c 2x10 6 hrs notes: unless otherwise specified, all the parameters of th e test conditions are as follows: ambient temperature 25 , the nominal input voltage, pure resistive nominal load. mechanical low current large current
www.pairuigroup.com page: 3 / 4 date: 01/23/2014 dc-dc converter bricks, open/enclosed bcq series, 1/4 brick, two outputs, up to 65w mechanical connection pin # dual 1 -vin 2 rem 3 +vin 4 +vo2 5 gnd 6 trim 7 +vo1 note: * unit is mm(inch). derating curve efficiency curve
www.pairuigroup.com page: 4 / 4 date: 01/23/2014 dc-dc converter bricks, open/enclosed bcq series, 1/4 brick, two outputs, up to 65w notes recommended test and application circuit 1. tvs&fuse be helpful with over voltage protection and inru sh limiting. recommended fuse better be 1.5~2times of the rated current . 2. the input filter capacitor c6 could select the aluminum el ectrolytic capacitors or tantalum capacitors, and the withstand voltage should be greater than the highest input v oltage. recommended capacitor should be between 22f~100f. 3. c1,c2 for the input filter capacitor,0.1~1f high-frequ ency ceramics capacitor or chip capacitor are recommended. the withstand voltage of output filter c5, c7 should be great er than the highest output voltage. recommended capacitor of c7 better within 100f and c5 connected with the chip to reduce the input voltage peak, recommended 0.1~1f high-frequency ceramics capacitor or chip capacit or.
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