bothhand usa e-mail: sales@bothhand usa.com http:// www.bothhand usa.com rev:20100908a page 1 of 5 isolated dc-dc converters buc30series -- 30watt features wide 2 : 1 input voltage range(9~18v,18~36v,36~75v) high efficiency up to 91% remote on/off input / output isolation voltage: 1.5kvdc operating temperature range: -40c to +85c output short circuit protection: h iccup, continuous & auto recovery over temperature protection shielded metal case with insulated baseplate customer design available optional heat-sink technical 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) buc30-12s7 1.5 0 8500 85 1476 78 56000 buc30-12s9 2.5 0 8000 75 2137 82 47000 BUC30-12S0 3.3 0 7 500 100 2611 83 47000 buc30-12s1 5.1 0 6000 150 3148 85 33000 buc30-12s2 12 50 2500 70 3012 87 4700 buc30-12s3 15 150 2000 30 3012 87 3300 buc30-12d1 5 0 3000 130 3012 87 10000 buc30-12d2 12 20 1250 120 3012 87 2200 buc30-12d3 9~18v nominal:12vdc 15 100 1000 100 2976 88 1800 1.5 0 8500 35 699 80 56000 2.5 0 8000 35 1029 85 47000 3.3 0 7500 40 1242 87 47000 5.1 0 6000 50 1500 89 33000 buc30-24s7 buc30-24s9 buc30-24s0 buc30-24s1 buc30-24s2 12 50 2500 85 1453 90 4700 buc30-24s3 15 20 2000 80 1453 90 3300 buc30-24d1 5 0 3000 50 1453 90 10000 buc30-24d2 12 50 1250 50 1453 90 2200 buc30-24d3 18~36v nominal:24vdc 15 0 1000 50 1453 90 1800 buc30-48s7 1.5 0 8500 20 345 81 56000 2.5 0 8000 15 508 86 47000 3.3 0 7500 20 614 88 47000 5.1 0 6000 25 741 90 33000 12 150 2500 25 727 90 4700 buc30-48s9 buc30-48s0 buc30-48s1 buc30-48s2 buc30-48s3 15 20 2000 25 718 91 3300 buc30-48d1 5 0 3000 25 727 90 10000 buc30-48d2 12 0 1250 25 718 91 2200 buc30-48d3 36~75v nominal:48vdc 15 0 1000 25 718 91 1800 description the buc30 series are isolated 30w dc/dc converters. designed with highly efficiency, allow the operating temperature range of these units to be -40c to +85c (with derating) in a 50.825.410.2mm shielded metal case. further features include wide 2 : 1 input voltage range, remote on/off control, trimmable output, short-circuit protection, over voltage protection and over temperature 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.
bothhand usa e-mail: sales@bothhand usa.com http:// www.bothhand usa.com rev:20100908a page 2 of 5 isolated dc-dc converters buc30series -- 30watt 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 120map-p typ. start up time nominal vin and constant resistive load 80ms typ. converter: on open or 3.5v vr 12v remote on/off converter: off short (4) 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 15 ma environmental specifications operating ambient temperature -40c to +85c (with derating) maximum case temperature +100c storage temperature range -55c to +105c relative humidity 95% rh max. temperature coefficient 0.02% / c max. output specifications output power 30 watts max. voltage accuracy full load and nominal vin 1% minimum load see table line regulation ll to hl at full load 0.2% 25% load to full load single 0.8% balanced load dual 0.5% load regulation unbalanced load 25% to 100% full load 3% 20mhz bandwidth 85mvp-p max. ripple and noise (measured with a 1uf/50v mlcc) (120mvp-p for 12/15vout) 1.5vout models 3v 2. 5vout models 3.6v over voltage protection 3.3vout models 3.9v (zener diode clamp) 5vout models 6.2v 12vout models 15v 15vout models 18v capacitive load see table over load protection % of full load at nominal input 110% min. thermal shutdown 115c typ.
bothhand usa e-mail: sales@bothhand usa.com http:// www.bothhand usa.com rev:20100908a page 3 of 5 isolated dc-dc converters buc30series -- 30watt s h ort circuit protection hiccup, continuous(auto recovery) transient response settling time 50% load step change 400s typ ( 1.7ms for 1.5/2.5/3.3vout) transient response over shoot di/dt=0.8a/s 5% of vo ( 10% for 1.5/2.5/3.3vout) general specifications efficiency nominal input see table isolation voltage input to output 1500vdc isolation resistance 500vdc 10 9 ohms min. isolation capacitance 1200pf typ. switching frequency 300khz typ. reliability, calculated mtbf 1.06 10 6 hrs physical specifications case material nickel-coated copper base material non-conductive black plastic potting material silicon rubber (ul94 v-0) 2. 0 1.0 0.4 inch dimensions (50.8 25.4 10.2 mm) weight 32.0g (1.13oz) typ. buc30 series buc30 series p ower derating curve without heatsink (5) power derating curve with heatsink (5) ambient temp.ta ( ) ambient temp.ta ( ) buc30-48s1 buc30-48s1 input voltage vs. efficiency output current vs. efficiency i n put voltage (v) o u tput current (a) output power (%) efficiency (%) efficiency (%) output power (%) 0 20 40 60 80 100 120 -40 -20 0 20 40 60 80 100 120 71 0 20 40 60 80 100 120 -40 -20 0 20 40 60 80 100 120 65
bothhand usa e-mail: sales@bothhand usa.com http:// www.bothhand usa.com rev:20100908a page 4 of 5 isolated dc-dc converters buc30series -- 30watt b uc30-48s1 buc30-48s1 transient response at 50%~100% max load loop gain & phase at vi=48v,full load note 1. io 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). 5. based on buc30-48s1. mechanical dimensions pin assignment pin single dual 1 +vin +vin 2 -vin -vin 3 remote on/off 4 +vout +vout 5 -vout common 6 trim -vout unit: mm [inch] tolerance: 0.5[0.02]
bothhand usa e-mail: sales@bothhand usa.com http:// www.bothhand usa.com rev:20100908a page 5 of 5 isolated dc-dc converters buc30series -- 30watt heat-sink (option) material: aluminum weight: 10g (0.35oz) specifications subject to change without notice. note: the product label on converter has to be removed before mounting the heat-sink. for volume orders, converters will be supplied with heat-sink already mounted. please contact factory for quotation. separate heat-sinks are only available for prototypes and small quantity orders.
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