bothhand usa e-mail: sales@bothhandusa.com http:// www.bothhand usa.com rev:20100211a page 1 of 4 isolated dc-dc converters bob8 series -- 8 watt features wide 2 : 1 input voltage range(9~18v,18~36v,36~75v) remote on/off input / output isolation voltage: 1.5k vdc extended operating temperature range: -40c to +85c output short circuit protection: co ntinuous & auto recovery over voltage protection: clamp mode meet en55022, class a (radiation) shielded metal case with insulated baseplate lead free design, rohs compliant 24pin dip package with industry-standard footprint customer design available t e c hnical 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 (1) full. load no load full load eff . (2) (%) capacitive load, max. (3) (uf) bob8-12s0 3.3 82 2000 6.8 733 79 6800 bob8-12s1 5 62 1500 3.4 791 82 3300 bob8-12s2 12 0 665 24 81 2 87 650 bob8-12s3 15 0 535 24 832 85 400 bob8-12d1 5 0 800 27 865 83 1650 BOB8-12D2 12 0 335 31 812 86 160 bob8-12d3 9~18v nominal:12vdc 15 0 265 28 824 86 270 bob8-24s0 3.3 88 2000 3.6 366 79 6800 bob8-24s1 5 20 1500 9.3 405 83 3300 bob8-24s2 12 0 665 14 432 85 440 bob8-24s3 15 0 535 15 416 85 280 bob8-24d1 5 0 800 14 427 83 1650 bob8-24d2 12 0 335 17 411 86 170 bob8-24d3 18~36v nominal:24vdc 15 0 265 17 407 87 180 bob8-48s0 3.3 72 2000 2 183 80 6800 bob8-48s1 5 0 1500 5 200 83 3300 bob8-48s2 12 0 665 7 205 86 400 bob8-48s3 15 0 535 7 203 86 200 bob8-48d1 5 0 800 6 213 83 1750 bob8-48d2 12 0 335 7 205 86 120 bob8-48d3 36~75v nominal:48vdc 15 0 265 8 203 87 250 description x.r <%<) =rmare hmr aesnhcro )h ?gd?g assnrmcrmel ?reafsro tac. .af.n9 ruuaaarsa9m hnnst c.r sermhcasf crtermhcfmr mhsfr su c.rer fsace cs ir ocrlg cs &)ylg as h vc eas ?pw ehaahfr tac. asofecm9oechsohmo usscemascl >fmc.rm urhcfmre asanfor taor v d 8 asefc nsnchfr mhsfrm mrtscr ssdsuu asscmsnm e.smcoaamafac emscracass hso snrm nsnchfr emscracassl 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:20100211a page 2 of 4 isolated dc-dc converters bob8 series -- 8 watt input specifications 12v nominal input 9-18vdc input voltage 24v nominal input 18-36vdc 48v nominal input 36-75vdc input filter pi type 12v input 25vdc input surge voltage 24v input 50vdc (100ms max.) 48v input 100vdc input reflected ripple current nominal vin and full load 30map-p typ. start up time nominal vin and constant resistive load 600ms typ. converter: on open or 3.5v vr 12v remote on/off converter: off short (4) or 0v vr 1 .2v sourcing current of remote control pin nominal vin 0.2 ma idle input current (at remote off state) nominal vin 2.5 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. emc characteristics emi en55022 (radiation) meet class a output specifications output power 8 watts max. voltage accuracy full load and nominal vin 2% minimum load see table line regulation ll to hl at full load 0.2% 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 60mvp-p max. 3.3 vout 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 continuous, automatic recovery transient response settling time 50% load step change 200s typ.
bothhand usa e-mail: sales@bothhandusa.com http://www.bothhandusa.com rev:20100211a page 3 of 4 isolated dc-dc converters bob8 series -- 8 watt transient response over shoot di/dt=0.8a/s 5% of vo general specifications efficiency nominal input see table isolation voltage input to output 1500vdc isolation resistance 500vdc 10 9 ohms min. isolation capacitance 300pf typ. switching frequency 300khz typ. reliability, calculated mtbf 3.76 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 17.2 g (0.59oz) typ. bob8 series power derating curve(5) amb ient temp.ta ( ) bob8-48s1 bob8-48s1 input voltage vs. efficiency output current vs. efficiency input voltage (v) output current (a) output power (%) efficiency (%) efficiency (%)
bothhand usa e-mail: sales@bothhand usa.com = u u q 1 n n x x x h p u = = % ] z + i h q p [ rev:20100211a page 4 of 4 isolated dc-dc converters bob8 series -- 8 watt bo b 8-48s1 bob8-48s1 transient response at 50%~100% max load lo op gain & phase at vi=48v,full load note 1. i o below this value will not damage these converters, however, they may not meet all listed specifications. 2. typical value, tested at nominal input and full load. 3. for each output. 4. short to -vin (pin 2,3). 5. based on bob8-48s1. mechanical dimensions sp e cifications subject to change without notice. pin assignment pin single dual 1 remote on/off 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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