wra-ydv-3w&wrb-ydv-3w wra-ydv-3w&wrb-ydv-3w wra-ydv-3w&wrb-ydv-3w wra-ydv-3w&wrb-ydv-3w wra-ydv-3w&wrb-ydv-3w wra-ydv-3w&wrb-ydv-3w wra-ydv-3w&wrb-ydv-3w wra-ydv-3w&wrb-ydv-3w series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 1 of 3 model model model model model model model model selection selection selection selection selection selection selection selection wra wra wra wra wra wra wra wra 24 24 24 24 24 24 24 24 0 0 0 0 0 0 0 0 5 5 5 5 5 5 5 5 y y y y dv dv dv dv dv dv dv dv - - - - - - - - 3 3 3 3 3 3 3 3 w w w w w w w w product series input voltage output voltage wide (2:1) input range dip24 v layout rated power 3w, 3w, 3w, 3w, wide wide wide wide input, input, input, input, isolated isolated isolated isolated & & & & regulated regulated regulated regulated dual/single dual/single dual/single dual/single output output output output dip dip dip dip dc-dc dc-dc dc-dc dc-dc converter converter converter converter features features features features features features features features wide (2:1) input range efficiency up to 82% operating temperature: -40 ~ +85 1500vdc isolation short circuit protection(automatic recovery) internal smd construction no heat sink required no external component required ul94-v0 package industry standard pinout mtbf>1,000,000 hours rohs compliance applications applications applications applications applications applications applications applications microdc reserves the copyright part part part part number number number number input input input input output output output output efficien efficien efficien efficien c c c c y y y y (%, (%, (%, (%, typ) typ) typ) typ) certificate certificate certificate certificate voltage voltage voltage voltage (vdc) (vdc) (vdc) (vdc) voltage voltage voltage voltage (vdc) (vdc) (vdc) (vdc) current current current current (ma) (ma) (ma) (ma) nominal nominal nominal nominal range range range range max max max max . . . . max. max. max. max. min min min min . . . . wra0505ydv-3w 5 4.5-9 11 5 300 30 68 wra0512ydv-3w 5 4.5-9 11 12 125 12 72 wra0515ydv-3w 5 4.5-9 11 15 100 10 73 wrb0505ydv-3w 5 4.5-9 11 5 600 60 68 wrb0509ydv-3w 5 4.5-9 11 9 333 33 70 wrb0512ydv-3w 5 4.5-9 11 12 250 25 72 wrb0515ydv-3w 5 4.5-9 11 15 200 20 73 wra1205ydv-3w 12 9-18 22 5 300 30 76 wra1212ydv-3w 12 9-18 22 12 125 12 79 wra1215ydv-3w 12 9-18 22 15 100 10 80 wrb1205ydv-3w 12 9-18 22 5 600 60 76 wrb1209ydv-3w 12 9-18 22 9 333 33 78 wrb1212ydv-3w 12 9-18 22 12 250 25 80 wrb1215ydv-3w 12 9-18 22 15 200 20 81 wrb1224ydv-3w 12 9-18 22 24 125 12 82 wra2405ydv-3w 24 18-36 40 5 300 30 76 wra2412ydv-3w 24 18-36 40 12 125 12 80 wra2415ydv-3w 24 18-36 40 15 100 10 81 wrb2403ydv-3w 24 18-36 40 3.3 909 90 74 ul wrb2405ydv-3w 24 18-36 40 5 600 60 76 ul wrb2409ydv-3w 24 18-36 40 9 333 33 78 ul WRB2412YDV-3W 24 18-36 40 12 250 25 81 ul wrb2415ydv-3w 24 18-36 40 15 200 20 80 ul wrb2424ydv-3w 24 18-36 40 24 125 12 82 wra4805ydv-3w 48 36-72 80 5 300 30 76 wra4812ydv-3w 48 36-72 80 12 125 12 80 wra4815ydv-3w 48 36-72 80 15 100 10 81 wrb4803ydv-3w 48 36-72 80 3.3 909 90 74 wrb4805ydv-3w 48 36-72 80 5 600 60 76 wrb4809ydv-3w 48 36-72 80 9 333 33 78 wrb4812ydv-3w 48 36-72 80 12 250 25 81 wrb4815ydv-3w 48 36-72 80 15 200 20 80 wrb4824ydv-3w 48 36-72 80 24 125 12 82 note: metal package style series is wra_ydv-3w & wrb_ydv-3w. the wr a (b)-ydv -3w series are specially designed for applications where a wide range input voltage power supplies are isolated from the input power supply in a distributed power supply system on a circuit board. these products apply to: 1) where the voltage of the input power supply is wide range (voltage range 2:1); 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. absolute absolute absolute absolute absolute absolute absolute absolute maximum maximum maximum maximum maximum maximum maximum maximum ratings ratings ratings ratings ratings ratings ratings ratings item item item item test test test test conditions conditions conditions conditions m m m m in. in. in. in. typ. typ. typ. typ. max. max. max. max. units units units units isolation voltage tested for 1 minute and 1ma max . 1500 vdc isolation resistance test at 500vdc 1000 m ? isolation capacitance input/output 80 pf
wra-ydv-3w&wrb-ydv-3w wra-ydv-3w&wrb-ydv-3w wra-ydv-3w&wrb-ydv-3w wra-ydv-3w&wrb-ydv-3w wra-ydv-3w&wrb-ydv-3w wra-ydv-3w&wrb-ydv-3w wra-ydv-3w&wrb-ydv-3w wra-ydv-3w&wrb-ydv-3w series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 2 of 3 output output output output output output output output specifications specifications specifications specifications specifications specifications specifications specifications item item item item test test test test conditions conditions conditions conditions m m m m in. in. in. in. typ. typ. typ. typ. max. max. max. max. units units units units output power see below products program 0.3 o 3 w positive voltage accuracy refer to recommended circuit 1 3 % negative voltage accuracy refer to recommended circuit 3 5 % load regulation from 10% to 100% load 0.45 1* % line regulation input voltage from low to high 0.2 0.5 % temperature drift(vout) refer to recommended circuit 0.03 %/ ripple & noise** 20mhz bandwidth 50 100 mvp-p switching frequency 100% load, nominal input voltage 300 khz *dual output models unbalanced load: 5 %. **test ripple and noise by p arallel cable method. see detailed operation instructions at testing of power converter section, application notes. common common common common common common common common specifications specifications specifications specifications specifications specifications specifications specifications item item item item test test test test conditions conditions conditions conditions m m m m in. in. in. in. typ. typ. typ. typ. max. max. max. max. units units units units storage humidity 95 % operating temperature -40 85 storage temperature -55 125 temp. rise at full load 15 lead temperature 1.5mm from case for 10 seconds 300 no-load power consumption 0.2 w cooling free air convection short circuit protection continuous, automatic recovery case material d: plastic (ul94-v0); md: steel, nickel coated mtbf 1000 k hours weight 15 g application application application application application application application application note note note note note note note note requirement requirement requirement requirement on on on on output output output output load load load load in order to ensure the product operate efficiently and reliably, in addition to a max load(namely full load), a minimum load is specified for this kind of dc/dc converter. make sure the specified range of input voltage is not exceeded, the minimum output load no less than 10% load. if the actual load is less than the specified minimum load, the output ripple may increase sharply while its efficiency and reliability will reduce greatly. if the actual output power is very small, please add an appropriate resistor as extra loading, or contact our company for other lower output power products. recommended recommended recommended recommended circuit circuit circuit circuit all the wr a_ ydv -3w & wr b_ ydv -3w series have been tested according to the following recommended testing circuit before leaving factory. this series should be tested under load. never be tested under no load (see figure 1). if you want to further decrease the input/output ripple, you can increase capacitance properly or choose capacitors with low esr. however, the capacitance of the output filter capacitor must be proper. if the capacitance is too big, a startup problem might arise. for every channel of output, provided the safe and reliable operation is ensured, the greatest capacitance of its filter capacitor sees (table 1). generally: if you want to use the products in high emi, please choose our metal packaged products (wr a_ ydv -3w & wr b_ ydv -3w ). general: cin: 5v&12v 100 f 24v&48v 10 f-47 f cout: 10 f/100ma input current when it is used in unregulated power supply, be sure that the fluctuating range of the power supply and the rippled voltage do not exceed the module standard. input current of power supply should afford the startup current of this kind of dc/dc module (see figure 2), general: ip 1 .4*iin-max no no no no parallel parallel parallel parallel connection connection connection connection or or or or plug plug plug plug and and and and play play play play typical typical typical typical typical typical typical typical characteristics characteristics characteristics characteristics characteristics characteristics characteristics characteristics recommended recommended recommended recommended recommended recommended recommended recommended circuit circuit circuit circuit circuit circuit circuit circuit output output output output external external external external capacitor capacitor capacitor capacitor table(table table(table table(table table(table 1) 1) 1) 1) single vout (vdc) cout (uf) dual vout (vdc) cout (uf) 5 1000 5 680 9 680 9 470 12 470 12 330 15 330 15 220 24 220 24 100
wra-ydv-3w&wrb-ydv-3w wra-ydv-3w&wrb-ydv-3w wra-ydv-3w&wrb-ydv-3w wra-ydv-3w&wrb-ydv-3w wra-ydv-3w&wrb-ydv-3w wra-ydv-3w&wrb-ydv-3w wra-ydv-3w&wrb-ydv-3w wra-ydv-3w&wrb-ydv-3w series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 3 of 3 outline outline outline outline outline outline outline outline dimensions dimensions dimensions dimensions dimensions dimensions dimensions dimensions footprint footprint footprint footprint footprint footprint footprint footprint details details details details details details details details mechanical mechanical mechanical mechanical mechanical mechanical mechanical mechanical dimensions dimensions dimensions dimensions dimensions dimensions dimensions dimensions microdc professional power module,inc. tel:0086-20-86000646 e-mail:tech@microdc.cn website:http://www.microdc.cn microdc professional power module,inc.makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. specifications are subject to change without notice. ? 2010 microdc professional power module, inc. guangzhou 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. recommended recommended recommended recommended recommended recommended recommended recommended footprint footprint footprint footprint footprint footprint footprint footprint 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 , 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.
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