um3300 1 of 2 rev.0 universal microelectronics 3,27th rd., taichung industrial park, taichung, taiwan, r.o.c. tel: 886-4-23590096 fax: 886-4-23590129 um3300 series 10 watt dc-dc converters ? 2:1 input range ? 25 watts/cubic inch ? efficiency to 82% ? short circuit protection specifications all specifications are typical at nominal line, full load and 25c unless otherwise noted. input specifications input voltage range, 24 v .????????..??. 18-36v 48v ??????.????? 36-75v input filter ????????? ??????..... pi network output specifications voltage accuracy, single ou tput ??.??..??. 2% max. transient response 1 , 1% error band ???? <500 u sec. ripple and noise, 20mhz bw 2 ..????. 100mv p-p max. temperature coefficient ???????... 0.02%/c max. short circuit protection .???..??????.. continuous line regulation 3 ???????.?..????.. 0.2% max. load regulation 4 ???????..?????.. 0.5% max. minimum load 5 ????????..????? 10% io max. general specifications efficiency .????????????????... see table isolation voltage ???????????.. 1500 vdc min. isolation resistance .????????..?.. 10 8 ohms min. switching frequency .????.??????.. 400khz typ. operating temperature range ????? -25c to +100c derating, 50c to 100 c ???????.?... see note 6 case temperature 7 ???????????... 100c max. cooling .???..????????.?. free-air convection. storage temperature rang e ????.?... -40c to+105c case material 8 ???????.. black-coated copper with non-conductive base. dimensions case a ?????... 1.25 x 0.80 x 0.40 inches (31.75 x 20.32 x 10.16mm) weight ..?????????????????.?...?. 18g notes: 1. di/dt=0.1a/1us, vin= nomina l line,tc=25c; load change =0.5 io max. to 0.75 io max. and 0.75 io max. to 0.5 io max. 2. measured with 0.1uf cera mic cap. connected to the output pins. 3. measured from low line to high line. 4. measured from full load to 1/4 full load. 5. the converter required a minimum 10% loading on the output. operation below 10% load conditions will not damage these devices. howeve r, they may not meet all listed spec. 6. output power (%) 100 0 ambient -25 50 100 temperature(c) 7. maximum case temperature under any operating condition should not be exceed 100c. 8. metal case only.
um3300 2 of 2 rev.0 universal microelectronics 3,27th rd., taichung industrial park, taichung, taiwan, r.o.c. tel: 886-4-23590096 fax: 886-4-23590129 input current model number input voltage output voltage output current no load full load % eff case UM3311 24 vdc 5 vdc 2000 ma 10 ma 520 ma 80 a um3321 48 vdc 5 vdc 2000 ma 5 ma 254 ma 82 a notes: 1. maximum capacitive load ac ross the each output ports should not be over following indicated values. 2. other output voltage can be supported upon request. model number UM3311 um3321 maximum 1 capacitive load (uf) +200 +200 case a pin connections pin single output 2 3 -v input -v input 9 10 11 np* np* nc* 14 15 16 +v output np* -v output 22 23 +v input +v input *nc (no connection) *np (no pin) all dimensions in inches (mm) note 1:pin size is 0.020 0.005 inches (0.5mm)dia. or 0.020*0.012 inches note 2:tolerance .xx =0.04? .xxx=0.010?
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