bothhand usa e-mail: sales@bothhandusa.com http:// www.bothhand usa.com rev:20100713w1 page 1 of 4 isolated dc-dc converters bob12 series -- 12 watt description the bob12 series are isolated 12w dc/dc converters. designed with highly efficiency, allow the operating temperature range of these units to be -40c to +85c in a 24 pin dip package with industry-standard footprint. further features include wide 2 : 1 input voltage range, remote on/off control, short-circuit protection and over voltage protection. 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. 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: c ontinuous & auto recovery over voltage protection: clamp mode high efficiency up to 88% 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) bob12-12s9 2.5 0 3500 47 960 80 55100 bob12-12s0 3.3 0 3500 56 882 82 28000 bob12-12s1 5.1 0 2400 68 1275 84 19620 bob12-12s2 12 0 1000 68 1220 86 3530 bob12-12s3 15 0 800 64 1220 86 2300 bob12-12d2 12 0 500 98 1220 86 1660 BOB12-12D3 9~18v nominal:12vdc 15 0 400 65 1220 86 1100 bob12-24s9 2.5 0 3500 22 468 82 59800 bob12-24s0 3.3 0 3500 24 609 83 36580 bob12-24s1 5.1 0 2400 31 630 85 18000 bob12-24s2 12 0 1000 25 602 87 3730 bob12-24s3 15 0 800 23 595 88 2420 bob12-24d2 12 0 500 26 595 88 1880 bob12-24d3 18~36v nominal:24vdc 15 0 400 25 595 88 1100 bob12-48s9 2.5 0 3500 21 237 81 56090 bob12-48s0 3.3 0 3500 16 305 83 40550 bob12-48s1 5.1 0 2400 14 315 85 20000 bob12-48s2 12 0 1000 13 301 87 3960 bob12-48s3 15 0 800 10 298 88 2750 bob12-48d2 12 0 500 13 298 88 1990 bob12-48d3 36~75v nominal:48vdc 15 0 400 13 301 87 1100
bothhand usa e-mail: sales@bothhandusa.com http://www.bothhandusa.com rev:20100713w1 page 2 of 4 isolated dc-dc converters bob12 series -- 12 watt input specifications 12 v nominal input 9-18vdc input voltage 24v nominal input 18-36vdc 48v nominal input 36-75vdc input filter pi type 12 v input 25vdc input surge voltage 24v input 50vdc (100ms max.) 48v input 100vdc input reflected ripple current nominal vin and full load 100map-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 sourcing 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 12 watts max. voltage accuracy full load and nominal vin 1.2% 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 85mvp-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 continuous, automatic recovery transient response settling time 50% load step change 350s 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:20100713w1 page 3 of 4 isolated dc-dc converters bob12 series -- 12 watt 50 55 60 65 70 75 80 85 90 0.24 0.48 0.72 0.96 1.2 1.44 1.68 1.96 2.16 2.4 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 400khz 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. bob12 series p ower derating curve (4) a mbient temp.ta ( ) bob12-48s1 bob12-48s1 input voltage vs. efficiency output current vs. efficiency input voltage (v) output current (a) output power (%) efficiency (%) efficiency (%) 50 55 60 65 70 75 80 85 90 36 40 44 48 52 56 60 64 68 75
bothhand usa e-mail: sales@bothhand usa.com http://www.bothhandusa.com rev:20100713w1 page 4 of 4 isolated dc-dc converters bob12 series -- 12 watt b o b12-48s1 bob12-48s1 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 bob12-48s1. mechanical dimensions s p ecifications 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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