rev:20130813a page 1 of 7 isolated dc - dc converters bra15w series -- 15 watt f ea tures wide 4 : 1 input voltage range(9~36v,18~75v) h i gh efficiency up to 89% remote on/off input / output isolation voltage: 1.5k vdc extended operating temperature range: -40c to+85c output short circuit protection: hiccup, continuous & auto recovery over voltage protection: clamp mode shielded metal case with insulated baseplate lead free design, rohs compliant 6 pin dip package with industry-standard footprint standard 1?x1? package customer design available safety standard / approval : iec / en 60950-1 te 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 (v) min. load ( 1) full. load no load full load eff . ( 2 ) (%) capacitive load, max. ( 3 ) (uf) bra15-24s0w 3.3 0 4 000 59 6 7 1 86 12000 bra15-24s1w 5.0 0 3 000 53 744 88 6000 bra15-24s2w 12 4 4 1300 56 783 87 2000 bra15-24s3w 15 0 1 000 59 753 87 1200 BRA15-24D1W 5 3 3 1500 49 772 85 3000 bra15-24d2w 12 0 625 58 753 87 1000 bra15-24d3w 9~36v n o minal:24v 15 20 500 60 753 87 600 bra15-48s0w 3.3 0 4 000 27 335 86 12000 bra15-48s1w 5.0 0 3 000 24 368 89 6000 bra15-48s2w 12 0 1 300 28 382 89 2000 bra15-48s3w 15 0 1 000 29 368 89 1200 bra15-48d1w 5 0 1500 23 386 85 3000 bra15-48d2w 12 0 625 28 372 88 1000 bra15-48d3w 18~75v n o minal:48v 15 0 500 30 368 89 600 description the bra15w series are isolated 15w dc/dc converters. designed with highly efficiency, allow the operating temperature range of these units to be -40c to +85c (with derating) in a 6 pin dip package with industry-standard footprint. further features include wide 4 : 1 input voltage range, remote on/off control, trimmable output, 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. bothhand usa sales@bothhandusa.com www.bothhandusa.com
rev:20130813a page 2 of 7 isolated dc - dc converters bra15w series -- 15 watt input specifications input voltage 2 4 v nominal input 9-36v 4 8 v nominal input 18-75v input filter p i type input surge voltage 2 4 v nominal input 50v (100ms max.) 4 8 v nominal input 100v input reflected ripple current n o minal vin and full load 60map-p max. start up time n o minal vin and constant resistive load 72ms typ. converter: on o p en or 3.5v vr 12v remote on/off c o nverter: off short (4) or 0v vr 0.7v sourcing current of remote control pin nominal vin 0.2 ma idle input current (at remote off state) nominal vin 1 2 ma environmental specifications operating ambient temperature - 4 0c to +85c (with derating) maximum case temperature + 1 05c max. storage temperature range - 5 5c to +125c relative humidity 9 5 % rh max. temperature coefficient 0 .02% / c max. output specifications output power 1 5 watts max. voltage accuracy full load and nominal vin 1% minimum load s e e table line regulation l l to hl at full load 1.0% 25% load to full load single 1 .0% balanced load dual 0 .5% load regulation unbalanced load 25% to 100% full load 5% ripple and noise 2 0 mhz bandwidth 80mvp-p max. 3 . 3vout models 3.9v over voltage protection 5 v out models 6.2v (zener diode clamp) 1 2 vout models 15v 1 5 vout models 18v capacitive load s e e table over load protection % of full load at nominal input 110% min. short circuit protection h i ccup, continuous (auto recovery) transient response settling time 50% load step change 5 6 0 s max. transient response over shoot d i /dt=0.8a/ s 5% of vo ( 6% for 3.3vout) bothhand usa sales@bothhandusa.com www.bothhandusa.com
rev:20130813a page 3 of 7 isolated dc - dc converters bra15w series -- 15 watt 0 2 0 4 0 60 80 100 120 -40 -20 0 20 40 60 80 100 120 63 general specifications efficiency n o minal input see table isolation voltage i n put to output 1500vdc isolation resistance 5 0 0vdc 10 9 ohms min. isolation capacitance 5 5 0pf typ. switching frequency 3 3 0khz typ. reliability, calculated mtbf 1 . 58 10 6 hrs physical specifications case material n i ckel-coated copper base material f r 4 pcb potting material s i licon rubber (ul94v-0) 1 . 0 1.0 0.4 inch dimensions ( 2 5.4 25.4 10.2 mm) weight 19.2g (0.68oz) typ. bra15w series power derating curve(5) ambient temp.ta ( ) bra15-48s1w bra15-48s1w 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 45 50 55 60 65 70 75 80 85 90 95 0.30 0.60 0.90 1.20 1.50 1.80 2.10 2.40 2.70 3.00 bothhand usa sales@bothhandusa.com www.bothhandusa.com
rev:20130813a page 4 of 7 isolated dc - dc converters bra15w series -- 15 watt b r a15-48s1w bra15-48s1w transient response at 50%~100% max load l o op 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). mechanical dimensions sp e cifications subject to change without noticed. pin assignment pin single dual 1 +vin +vin 2 -vin -vin 3 +vout +vout 4 trim common 5 -vout -vout 6 r e mote on/off (optional) unit: mm [inch] t o lerance: 0.5[0.02] bothhand usa sales@bothhandusa.com www.bothhandusa.com
rev:20130813a page 5 of 7 isolated dc - dc converters bra15w series -- 15 watt test configurations a l l specifications are typical at nominal input, full load and 25c unless otherwise stated. dc power supply: it offers a wide voltage and current range precisely. current meter (a): accuracy 200a ~ 200ma 4 ranges+ (0.2% rdg + 2 digits) 2 0 00ma ~ 20a 2 ranges+ (0.3% rdg + 2 digits). v o ltage meter (v): accuracy + (0.03% rdg + 4 digits). l o ad: at full load. wires: the resistance of the wires must be small. 1. input voltage range: n arrow input voltage range 10 % wide input voltage range (2:1 and 4:1 ex: narrow input voltage range 10% 5v nominal input 4.5~5.5v 12v nominal input 10.8~13.2v 24v nominal input 21.6~26.4v wide input voltage range 2:1 5v nominal input 4.5~9v 12v nominal input 9~18v 24v nominal input 18~36v 48v nominal input 36~75v wide input voltage range 4:1 (w) 24v nominal input 9~36v 48v nominal input 18~75v 2. input power : pin = vin x iin vin inp ut voltage iin input current 3. output power : pout = vout x iout vout out put voltage iout output current 4. efficiency : pout: output power pin : input power 5. voltage accuracy : v o ut output voltage vo ut(nominal) nominal output voltage dc power supply a v load dc/dc converter v a dc power supply a v load dc/dc converter v a v out-vout(nominal) vout x 1 00% efficiency = x100% pout p i n bothhand usa sales@bothhandusa.com www.bothhandusa.com
rev:20130813a page 6 of 7 isolated dc - dc converters bra15w series -- 15 watt noise ripple ripple & no ise 6 . line regulation : (1) wide input voltage range and regulated output vol tage series. (2) narrow input voltage range 1 0 % and unregulated output voltage series. ? vout = vout(+10%)-vout(-10%) x100% v o ut vout(+10%) output voltage at vin = 1.1xvin(nominal)&full load vout(-10%) output voltage at vin = 0.9xvin(nominal)&full load vout output voltage at vin = vin(nominal)&full load ? vin = vin(+10%)-vin(-10%) x100% v i n(nominal) vin(+10%) input voltage = 1.1xvin(nominal) vin(-10%) input voltage = 0.9xvin(nominal) vin(nominal) nominal input voltage 7. load regulation : v out(fl)-vout(nl) x100% v o ut(fl) vout(fl): output voltage at full load vout(nl): output voltage at 25% full load or 10% full load 8. ripple and noise : a s shown below. the bandwidth is 0-20mhz. vo ut(ll)-vout(hl) vout(ll) l l : low line input voltage hl: high line input voltage x100% v out v in line regulation = bothhand usa sales@bothhandusa.com www.bothhandusa.com
rev:20130813a page 7 of 7 isolated dc - dc converters bra15w series -- 15 watt 0 2 0 4 0 60 80 100 120 -40 -20 0 20 40 60 80 100 120 63 o u tput ripple&noise measurement test circuit: as shown below. co: usually 0.47uf. 9. temperature derating curve : t he dc-dc converter will operate over a wider temperat ure range if less power is drawn from the output and the device is already running. the temperature derating curve shows the operating power-temperature range. as shown below. ambient temp.ta ( ) 1 0. switching frequency : t he nominal operating frequency of the dc-dc converter s. 11. i nput to output isolation : t he dielectric breakdown strength test between input a nd output circuits. this is the isolation voltage the device is capable of withstanding for a specified time, usually 1 second or 1 minute. load dc/dc converter oscilloscope copper strip copper strip co load dc/dc converter oscilloscope copper strip copper strip load dc/dc converter oscilloscope copper strip copper strip co output power (%) bothhand usa sales@bothhandusa.com www.bothhandusa.com
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