um800 1 of 2 rev.1 universal microelectronics 3,27th rd., taichung industrial park, taichung, taiwan, r.o.c. tel: 886-4-23590096 fax: 886-4-23590129 um800 series 15 watt dc-dc converters 4:1 input range. 15w isolated output. efficiency to 80%. remote on/off control. 100 khz switching frequency. six-sided shield. specifications all specifications are typical at nominal line, full load and 25c unless otherwise noted. input specifications input voltage range, 24v ????....???.???.. 9-36v 48v ?????.???.??... 18-72v input filter .??????????????.?... pi network reverse voltage protection 1 ???.?. internal shunt diode use external fuse output specifications voltage accuracy, single output ??..???.?.. 1% max. dual + output .?..?.??..?.. 1% max. - output ...?..????... 3% max. triple, 5v ????.???..?. 2% max. 12v/15v ??????? 3% max. voltage balance, dual output at full load .?... 1.0% max. transient response single, 25% step load change ..?????.. <500 sec. dual,fl-1/2l,1% error band ???.??...... <500 sec. external trim adj, range .??????.?????... 10% ripple and noise, 20mhz bw ?????. 10mv rms max. 75mv p-p max. temperature coefficient ??????...?.. 0.02%c max. short circuit protection .???????.??... continuous overvoltage protection, 5v ?..?.????.????... 6.8v 12v .??.????.?.??..?.. 15v 15v ??.????..???.?? 18v line regulation 2 , single/dual output ???..... 0.2% max. triple output ??..?.....??... 1% max. load regulation 3 , single/dual output .?.??..... 1% max. triple output .?.???.??... 5% max. general specifications efficiency ??????..??.??.?????... see table isolation voltage .???..??.??.???.... 500 vdc min. isolation resistance .????.?????.... 10 8 ohms min. switching frequency .?..??.??????.??.. 100khz case grounding ??????.... capacity coupled to input operating temperature range ambient, none derating ???????... -25c to +71c cooling .?????????..?..?.. free air convection storage temperature range .?..???.... -55c to +105c emi/rfi ????..??.??... six-sided continuous shield dimensions ?????.????.... 2.56 * 3.0 * 0.83 inches (65 * 76.2 * 21.1mm) case material ??..??.??.... black-coated copper with non-conductive base weight ??????..????????????....... 180g notes 1. determine the correct fuse size by calculating the maximum dc current drain at low line input, maximum load and then adding 20% to 25% to get the desired fuse size. 2. measured from high line to low line. 3. measured from full load to 1/4 full load. remote on/off control logic compatibility??????????????????. ??.???????????cmos or open collector ttl ec-on,???????????.>+5.5 vdc or open circuit ec-off,????????????????.??..<1.8vdc shutdown idle current????..???????...?..10ma control common????..??..referenced to input minus free datasheet http:///
um800 2 of 2 rev.1 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 um801 um802 um803 um804 UM805 um806 um807 24 vdc 5 vdc 12 vdc 15 vdc 12 vdc 15 vdc 5/12 vdc 5/15 vdc 3000 ma 1250 ma 1000 ma 625 ma 500 ma 1500/310 ma 1500/250 ma 20 ma 20 ma 20 ma 30 ma 30 ma 30 ma 30 ma 810 ma 780 ma 780 ma 780 ma 780 ma 800 ma 800 ma 77 80 80 80 80 78 78 e um811 um812 um813 um814 um815 um816 um817 48 vdc 5 vdc 12 vdc 15 vdc 12 vdc 15 vdc 5/12 vdc 5/15 vdc 3000 ma 1250 ma 1000 ma 625 ma 500 ma 1500/310 ma 1500/250 ma 20 ma 20 ma 20 ma 25 ma 25 ma 25 ma 25 ma 410 ma 390 ma 390 ma 390 ma 390 ma 400 ma 400 ma 76 80 80 80 80 78 78 e case e all dimensions in inches(mm). tolerance .xx =0.04 .xxx =0.010 pin connections pin single dual triple 1 2 3 4 5 6 7 +input -input no pin output trim no pin +output -output +input -input +output common -output no pin no pin +input -input +output common -output +5v output no pin 8 remote on/off control output may optionally be externally trimmed (+10%) with a external output trimming fixed resister or an external trimpot as shown. up trim trim down rt1 or rt2 trimpot 10 k 7 4 6 7 4 6 ? triple output loading table 1 amperes min 2 nom. max. 1 2 & 3 2 & 3 +5 +12 or ?12 +15 or ?15 .250 .100 .100 1.5 .310 .250 2.0 .500 .500 notes: 1. maximum total power from all outputs is limited to15 watts but no output should be allowed to exceed its maximum current. 2. minimum current on each output is required to maintain specified regulation. free datasheet http:///
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