bothhand usa e-mail: sales@bothhandusa.com http://www.bothhandusa.com rev:20100929a page 1 of 4 isolated dc-dc converters bob8w series -- 8 watt features wide 4 : 1 input voltage range(9~36v,18~75v) remote on/off high efficiency up to 86% input / output isolation voltage: 1.5k vdc extended operating temperature range: -40c to +85c output short circuit protection: h iccup, continuous & auto recovery over voltage protection: clamp mode shielded metal case with insulated baseplate lead free design, rohs compliant 24pin dip package with industry-standard footprint customer design available t e chnical specification all specifications are typical at nominal input, full load and 25c unless otherwise stated. output current (ma) input current (ma) model number input voltage range output voltage (vdc) min. load full. load no load full load eff . (1) (%) capacitive load, max. (2) (uf) bob8-24s0w 3.3 0 2000 30 343 84 20200 bob8-24s1w 5 0 1500 45 386 85 14400 bob8-24s2w 12 0 665 15 410 85 2300 bob8-24s3w 15 0 535 16 413 85 1530 bob8-24d1w 5 0 800 17 422 83 6700 bob8-24d2w 12 0 335 20 418 85 1000 bob8-24d3w 9~36v nominal:24vdc 15 0 265 20 409 85 760 bob8-48s0w 3.3 0 2000 13 172 84 22200 bob8-48s1w 5 0 1500 21 190 86 13000 bob8-48s2w 12 0 665 6 205 85 2000 bob8-48s3w 15 0 535 6 206 85 1330 BOB8-48D1W 5 0 800 5 211 83 6900 bob8-48d2w 12 0 335 6 207 85 1100 bob8-48d3w 18~75v nominal:48vdc 15 0 265 7 204 85 760 descr iption &.r =5=1p :rgare hgr aesnhcro 1p @,d@, assnrgcrgel @reausro tac. .au.n~ rccaaarsa~b hnnst c.r serghcasu crterghcwgr ghsur sc c.rer wsace cs ir ohr=, cs 91v=, as h vh eas @ff ehaahur tac. asowecg~oechsohgo csscegascl ?wgc.rg crhcwgre asanwor taor h d 8 asewc nsnchur ghsurb grtscr ssdscc asscgsnb e.sgcoaagawac egscracass hso snrg nsnchur egscracassl applications these converters are well suitable for battery operated equipment, measurement equipment, telecom, wireless network, industry control system, everywhere where isolated, tightly regulated voltages and compact size are required.
bothhand usa e-mail: sales@bothhandusa.com http://www.bothhandusa.com rev:20100929a page 2 of 4 isolated dc-dc converters bob8w series -- 8 watt input specifications input voltage 24v nominal input 9-36vdc 48 v nominal input 18-75vdc input filter pi type input surge voltage 24v input 50vdc (100ms max.) 48v input 100vdc input reflected ripple current nominal vin and full load 200map-p typ. start up time nominal vin and constant resistive load 75ms typ. converter: on open or 3.5v vr 12v remote on/off converter: off short (3) or 0v v r 0.7v so urcing current of remote control pin nominal vin 0.2 ma idle input current (at remote off state) nominal vin 6 ma environmental specifications operating ambient temperature -40c to +85c (with derating) maximum case temperature +100c storage temperature range -55c to +105c relative humidity 5% to 95% rh temperature coefficient 0.02% / c max. output specifications output power 8 watts max. voltage accuracy full load and nominal vin 1% minimum load see table line regulation ll to hl at full load 0.5% 25% load to full load single 1% balanced load dual 1% load regulation unbalanced load 25% to 100% full load 5% ripple and noise 20mhz bandwidth 50mvp-p max. 3. 3vout models 3.9v over voltage protection 5vout models 6.2v (zener diode clamp) 12vout models 15v 15vout models 18v capacitive load see table over load protection % of full load at nominal input 150% typ. short circuit protection hiccup, continuous (auto recovery) transient response settling time 50% load step change 450s typ. transient response over shoot di/dt=0.8a/s 5% of vo
bothhand usa e-mail: sales@bothhandusa.com http://www.bothhandusa.com rev:20100929a page 3 of 4 isolated dc-dc converters bob8w series -- 8 watt general specifications efficiency nominal input see table isolation voltage input to output 1500vdc isolation resistance 500vdc 10 9 ohms min. isolation capacitance 260pf typ. switching frequency 300khz typ. reliability, calculated mtbf 2.11 10 6 hrs physical specifications case material nickel-coated copper base material non-conductive black plastic potting material silicon rubber (ul94v-0) 1. 25 0.80 0.40 inch dimensions (31.75 20.32 10.16 mm) weight 18 g (0.62oz) typ. bob8w series p ower derating curve (4) ambient temp.ta ( ) bob8-48s1w bob8-48s1w input voltage vs. efficiency output current vs. efficiency input voltage (v) output current (a) output power (%) efficiency (%) efficiency (%) 55 60 65 70 75 80 85 90 95 18 24 30 36 42 48 54 60 66 75 55 60 65 70 75 80 85 90 95 0.15 0.3 0.45 0.6 0.75 0.9 1.05 1.2 1.35 1.5 0 20 40 60 80 100 120 -40 -20 0 20 40 60 80 100 120 79
bothhand usa e-mail: sales@bothhand usa.com http://www.bothhandusa.com rev:20100929a page 4 of 4 isolated dc-dc converters bob8w series -- 8 watt b o b8-48s1w bob8-48s1w transient response at 50%~100% max load l oop gain & phase at vi=48v,full load note 1 . typical value, tested at nominal input and full load. 2. for each output. 3. short to -vin (pin 2,3). 4. based on bob8-48s1w. mechanical dimensions s p ecifications subject to change without notice. pin assignment pin single dual 1 remote on/off 2 -vin -vin 3 -vin -vin 9 no function common 11 no function -vout 14 +vout +vout 16 -vout common 22 +vin +vin 23 +vin +vin unit: mm [inch] tolerance: 0.5[0.02]
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