wra_ wra_ wra_ wra_ wra_ wra_ wra_ wra_ z z z z z z z z s- s- s- s- s- s- s- s- 2 2 2 2 2 2 2 2 w w w w w w w w wrb_ wrb_ wrb_ wrb_ wrb_ wrb_ wrb_ wrb_ z z z z z z z z s s s s s s s s - - - - - - - - 2 2 2 2 2 2 2 2 w w w w w w w w series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 1 of 2 selection selection selection selection selection selection selection selection guide guide guide guide guide guide guide guide ordercode ordercode ordercode ordercode input input input input voltage voltage voltage voltage range range range range output output output output voltage voltage voltage voltage output output output output current current current current max. max. max. max. effciency effciency effciency effciency typ. typ. typ. typ. wrb2403zs-2w 9 C 36 vdc (24 vdc nominal) 3.3 vdc 500 ma 71 % wrb2405zs-2w 5 vdc 400 ma 76 % wrb2412zs-2w 12 vdc 165 ma 79 % wrb2415zs-2w 15 vdc 135 ma 80 % wra2403zs-2w 3.3 vdc 2 5 0 ma 7 6 % wra2405zs-2w 5 vdc 200 ma 7 8 % wra2412zs-2w 12 vdc 85 ma 77 % wra2415zs-2w 15 vdc 65 ma 79 % wra2418zs-2w 1 8 vdc 56 ma 79 % WRB4803ZS-2W 18 C 75 vdc (48 vdc nominal) 3.3 vdc 500 ma 70 % wrb4805zs-2w 5 vdc 400 ma 72 % wrb4812zs-2w 12 vdc 165 ma 78 % wrb4815zs-2w 15 vdc 135 ma 78 % wra4805zs-2w 5 vdc 200 ma 70 % wra4812zs-2w 12 vdc 85 ma 76 % wra4815zs-2w 15 vdc 65 ma 76 % *input voltage can't exceed this value,or will cause the permanent damage. model model model model model model model model selection selection selection selection selection selection selection selection wr wr wr wr wr wr wr wr a a a a a a a a 24 24 24 24 24 24 24 24 05 05 05 05 05 05 05 05 z z z z z z z z s s s s s s s s - - - - - - - - 2 2 2 2 2 2 2 2 w w w w w w w w product series input voltage output voltage wide ( 4 :1) input range sip 8 package style rated power wide wide wide wide input,isolated input,isolated input,isolated input,isolated & & & & regulated regulated regulated regulated dual/single dual/single dual/single dual/single output output output output sip sip sip sip -8 -8 -8 -8 dc/dc dc/dc dc/dc dc/dc converter converter converter converter features features features features features features features features ultra-wide 4:1 input range sip- 8 package full smd design temperature range C 40 c to +85 c high effciency excellent load and line regulation indefnite short-circuit protection i/o isolation 1500 vdc remote on/off control fully rohs compliant 3-year product warranty description description description description description description description description the wra(b)-zs-2w series is a new family of isolated 2w dc-dc converter modules with regulated output, featuring ultra-wide 4:1 input voltage ranges of 9-36 vdc or 18-75 vdc. the product comes in a ultra-compact sip-9 plastic package. an excellent effciency up to 84% allows C 40 c to +85 c operation temperatures at full load. further features include remote on/off control and continuous short circuit protection. typical applications for these ultra-compact converters are battery operated equipment and distributed power architectures in communication, instrumentation and industrial electronics, everywhere where space on the pcb is critical.1) where the voltage of the input power supply is wide range (voltage range 4 :1); 2) where isolation is necessary between input and output (isolation voltage 1500vdc); 3) where the regulation of the output voltage and the output ripple noise are demanded. microdc reserves the copyright output output output output output output output output specifications specifications specifications specifications specifications specifications specifications specifications parameter parameter parameter parameter results results results results voltage set accuracy 2 % regulation C input variation vin min. to vin max. C load variation 25 C 100 % single output models: dual output models: 0.5 % max. 0.75 % max. 2.0 % max. (balanced load) minimum load 25 % of rated max current (operation at lower load condition is safe but a higher output ripplewill be experianced) temperature coefficient 0.1 %/ c ripple and noise (20 mhz bandwidth) 50 mvpk-pk max transient response (25 % load step change) 300 s max. short circuit protection constant current (automatic recovery) capacitive load 3.3 vdc / 5 vdc models: 12 vdc / 15vdc models: 5 vdc / 12 vdc models: 15 vdc models: 2 200 f max. / 1 000 f max. 170 f max. / 110 f max. 470 f max. / 100 f max. (each output) 47 f max. (each output) input input input input input input input input specifications specifications specifications specifications specifications specifications specifications specifications parameter parameter parameter parameter results results results results input current at no load (nominal input) 24 vin models: 48 vin models: 20 ma typ. 15 ma typ. input current at full load (nominal input) 24 vin models: 48 vin models: 110 ma typ. 55 ma typ. surge voltage (100 msec. max.) 24 vin models: 48 vin models: 50 v max. 100 v max. reverse voltage protection 0.5 a max. input filter capacitor type start up time <1ms (at nominal input and resistive load)
wra_ wra_ wra_ wra_ wra_ wra_ wra_ wra_ z z z z z z z z s- s- s- s- s- s- s- s- 2 2 2 2 2 2 2 2 w w w w w w w w wrb_ wrb_ wrb_ wrb_ wrb_ wrb_ wrb_ wrb_ z z z z z z z z s s s s s s s s - - - - - - - - 2 2 2 2 2 2 2 2 w w w w w w w w series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 2 of 2 note: 1. the load shouldn't be less than 10%, otherwise ripple will increase dramatically. 2. operation under 10% load will not damage the converter; however, they may not meet all specification listed. 3. all specifications measured at ta=25 c, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 4. in this datasheet, all the test methods of indications are based on corporate standards. 5. only typical models listed, other models may be different, please contact our technical person for more details. general general general general general general general general specifications specifications specifications specifications specifications specifications specifications specifications parameter parameter parameter parameter results results results results temperature ranges C operating C case temperature C storage C 40 c to +85 c +90 c max. C 55 c to +105 c derating (convection cooling) 3.3 %/k above 70 c humidity (non condensing) 95 % rel. h max. reliability, calculated mtbf (mil-hdbk-217f at +25 c, ground benign) >1 mio h isolation voltage (60 sec.) C input/output 1 500 vdc isolation capacitance C input/output 500 pf max. isolation resistance C input/output (500 vdc) >1 000 m ohm switching frequency 100 to 650 khz (pfm) remote on/off control C on: C off: C off stand by input current <0.6 vdc or open circuit 2.9 to 15 vdc 1 ma typ / 3 ma max. microdc professional power module,inc. tel:0086-20-86000646 e-mail:tech@microdc.cn website:http://www.microdc.cn rohs rohs rohs rohs compliant compliant compliant compliant information information information information this series is compatible with rohs soldering systems with a peak wave solder temperature of 300 c for 10 seconds. the pin termination finish on the sip package type is tin plate, hot dipped over matte tin with nickel preplate. the dip types are matte tin over nickel preplate. both types in this series are backward compatible with sn/pb soldering systems. reach reach reach reach compliant compliant compliant compliant information information information information this series has proven that this product does not contain harmful chemicals, it also has harmful chemical substances through the registration, inspection and approval. physical physical physical physical physical physical physical physical specifications specifications specifications specifications specifications specifications specifications specifications parameter parameter parameter parameter results results results results casing material non-conductive plastic potting material epoxy (ul 94v-0 rated) weight 6.5 g (0.23 oz) soldering temperature max. 260 c / 10 sec. environmental compliance C reach C rohs directive 2002/95/ec http://www.microdc.cn/uploadfiles/wra (b) -zs-2w.pdf all all all all all all all all specifcations specifcations specifcations specifcations specifcations specifcations specifcations specifcations valid valid valid valid valid valid valid valid at at at at at at at at nominal nominal nominal nominal nominal nominal nominal nominal input input input input input input input input voltage, voltage, voltage, voltage, voltage, voltage, voltage, voltage, full full full full full full full full load load load load load load load load and and and and and and and and +25 +25 +25 +25 +25 +25 +25 +25 c c c c c c c c after after after after after after after after warm-up warm-up warm-up warm-up warm-up warm-up warm-up warm-up time time time time time time time time unless unless unless unless unless unless unless unless otherwise otherwise otherwise otherwise otherwise otherwise otherwise otherwise stated. stated. stated. stated. stated. stated. stated. stated. outline outline outline outline outline outline outline outline dimensions dimensions dimensions dimensions dimensions dimensions dimensions dimensions pin single dual 1 -vin(gnd) -vin(gnd) 2 +vin(vcc) +vin(vcc) 3 remote on/off remote on/off 5 no function no function 6 +vout +vout 7 -vout common 8 no function -vout n ote:specifications can be changed any time without notice. dimensions in [mm], () = inch pin diameter ? 0.5 0.05 (0.02 0.002) tolerances 0.5 ( 0.02) pin pitch tolerances 0.2 ( 0.008)
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