1 ec2sb series 10 watt 2:1 input dc-dc converters feature * 10w isolated output * efficiency to 87% * 2:1 input range * regulated outputs * fixed switching frequency * input under-voltage protection * over current protection * remote on/off * continuous short circuit protection * without tantalum capacitors inside ec2sb series note: 1. nominal input voltage 12, 24 or 48 vdc output current input current model number input voltage output voltage min. max. no load full load % eff. size ec2sb -12s33 9-18 vdc 3.3 vdc 0 ma 2500 ma 25 ma 838 ma 82 1?x1? ec2sb -12s05 9-18 vdc 5 vdc 0 ma 2000 ma 25 ma 980 ma 85 1?x1? ec2sb -12s12 9-18 vdc 12 vdc 0 ma 833 ma 25 ma 957 ma 87 1?x1? ec2sb -12s15 9-18 vdc 15 vdc 0 ma 666 ma 25 ma 956 ma 87 1?x1? ec2sb -24s33 18-36 vdc 3.3 vdc 0 ma 2500 ma 20 ma 419 ma 82 1?x1? ec2sb -24s05 18-36 vdc 5 vdc 0 ma 2000 ma 20 ma 490 ma 85 1?x1? ec2sb -24s12 18-36 vdc 12 vdc 0 ma 833 ma 20 ma 478 ma 87 1?x1? ec2sb -24s15 18-36 vdc 15 vdc 0 ma 666 ma 20 ma 478 ma 87 1?x1? ec2sb -48s33 36-75 vdc 3.3 vdc 0 ma 2500 ma 20 ma 212 ma 81 1?x1? ec2sb -48s05 36-75 vdc 5 vdc 0 ma 2000 ma 20 ma 245 ma 85 1?x1? ec2sb -48s12 36-75 vdc 12 vdc 0 ma 833 ma 20 ma 239 ma 87 1?x1? ec2sb -48s15 36-75 vdc 15 vdc 0 ma 666 ma 20 ma 239 ma 87 1?x1?
2 specifications all specifications typical at nominal line, full load, and 25 unless otherwise noted input specifications: general specifications: input voltage range ....?????...............???. 12v ................ 9 - 18v efficiency ...........................................???..???............ see table 24v ???.... 18 ? 36v isolation voltage .................................??..???......... 1500 vdc min. 48v ???.... 36 ? 75v isolation resistance .....................??.????.??? 10 9 ohms min. under voltage lockout ???????.?. 12vin power up ?....?..??9v switching frequency ............................??...................... 350khz typ. 12vin power down ??...??. 8v operating ambient temperature range...?..?...??.... -40 to +85 24vin power up ?.??.??. 17v derating, above 71 ?????..?. linearly to zero power at +10 5 24vin power down ??..?. 16v case temperature (note 6) ????????????????.. 105 48vin power up ????..?. 34v cooling ??????????????????? natural convection 48vin power down ??.?.. 32v storage temperature range ...?............??....?....... -55 to +125 input filter ????????????..???.????????. pi type dimensions .............?.. 1.00x1.00x0.4 inches (25.4x25.4x10.2mm) positive logic remote on/off control : logic compatibility ????????.. cmos or open collector ttl case material ??..? black coated copper with non-conductive base module on ?????????.. >+5.5v to 75vdc or open circuit weight??????????????????????????.18.4g module off ??????????????.?????. <1.2vdc note : output specifications: 1. measured from high line to low line voltage accuracy ??????....??????.......????? 1.5% max. 2. measured from full load to min. load transient response: 25% step load change ............?.....??? <500u sec. 3. the output ripple and noise is measured with 10uf tantalum and 1uf ripple and noise, 20mhz bw ????? vo=3.3 & 5v ?? 50mv p-p max. ceramic capacitor across output. vo=12 & 15v ?. 50mv p-p max. 4. maximum case temperature un der any operating condition should temperature coefficient ....................?.???...?..???.. 0.03%/c max. not be exceeded 105 . short circuit protection ...................?....???????..???.. continuous line regulation, note1 ..???...????????...????. 0.2% max. load regulation, note2 ???????.........???????.. 0.2% max. over voltage protection ?????????.???? zener or tvs clamp external trim adj. range ?????????????.?..????.. 10% current limit ??????????????. 110% - 140% nominal output size sb dimensions: bottom view pin connection pin 1 2 3 4 5 +input -input +v output trim -v output dip function m in. dia tolerances inch es: x.xx= 0.04 , x.xxx= 0.010 millimeters: x.x= 1.0 , x.xx=0.25 6 remote typical derating curve for natural convection -40 105 71 0% 20% 40% 60% 80% 100% 120% -40-20 0 20406080100 ambient temperature( o c) load(%) natural convection external output trim 10k ohms +vout trim -vout +vout trim -vout trimpot trim up trim down
mouser electronics authorized distributor click to view pricing, inventory, delivery & lifecycle information: cincon: ? ec2sb-12s33? ec2sb-12s05? ec2sb-12s12? ec2sb-12s15? EC2SB-24S33? ec2sb-24s05? ec2sb-24s12? ec2sb-24s15? ec2sb-48s33? ec2sb-48s05? ec2sb-48s12? ec2sb-48s15
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