wrd-yd-3w wrd-yd-3w wrd-yd-3w wrd-yd-3w wrd-yd-3w wrd-yd-3w wrd-yd-3w wrd-yd-3w series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 1 of 3 product product product product product product product product program program program program program program program program part number input output efficiency (%,typ) voltage(vdc) no-load current (ma,typ) voltage (vdc) current(ma) nominal range max* max min . wrd050505 yd -3w 4.5-9.0 4.5-9.0 11 40 5/5 300/300 30/30 68 wrd051212 yd -3w 4.5-9.0 4.5-9.0 11 40 12/12 125/125 12/12 71 wrd051515 yd -3w 4.5-9.0 4.5-9.0 11 40 15/15 100/100 10/10 72 wrd120505 yd -3w 12 9.0-18 22 20 5/5 300/300 30/30 76 wrd120909 yd -3w 12 9.0-18 22 20 9/9 166/166 16/16 78 wrd121212 yd -3w 12 9.0-18 22 20 12/12 125/125 12/12 80 wrd121515 yd -3w 12 9.0-18 22 20 15/15 100/10 0 10/10 81 wrd122424 yd -3w 12 9.0-18 22 20 24/24 62/6 2 6/6 82 wrd240505 yd -3w 24 18-36 40 10 5/5 300/300 30/30 76 wrd240512 yd -3w 24 18-36 40 10 5/12 300/125 30/12 77 wrd241212 yd -3w 24 18-36 40 10 12/12 125/125 12/12 80 wrd241515 yd -3w 24 18-36 40 10 15/15 100/100 10/10 79 wrd242424 yd -3w 24 18-36 40 10 24/24 62/62 6/6 81 wrd480505 yd -3w 48 36-72 80 5 5/5 300/300 30/30 76 wrd480512 yd -3w 48 36-72 80 5 5/12 400/83 40/8 78 wrd480909 yd -3w 48 36-72 80 5 9/9 166/166 16/16 78 wrd481212 yd -3w 48 36-72 80 5 12/12 125/125 12/12 80 wrd481515 yd -3w 48 36-72 80 5 15/15 100/100 10/10 81 wrd482424 yd -3w 48 36-72 80 5 24/24 62/62 6/6 82 *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 d d d d d d d d 05 05 05 05 05 05 05 05 05 05 05 05 05 05 05 05 05 05 05 05 05 05 05 05 y y y y y y y y d d d d d d d d - - - - - - - - 3 3 3 3 3 3 3 3 w w w w w w w w product series input voltage 1st output voltage 2nd output voltage wide ( 2 :1) input range package style rated power 3w, 3w, 3w, 3w, wide wide wide wide input input input input isolated isolated isolated isolated & & & & regulated regulated regulated regulated twin twin twin twin 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 2:1 wide input voltage range twin output operating temperature: -40 to + 85 ul94-v0 package no external component required industry standard pinout short circuit protection ( automatic recovery ) five-sided metal shielding(wrd-yd) mtbf>1,000,000 hours no heat sink required rohs compliance applications applications applications applications applications applications applications applications the wrd_ yd -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 isolation is necessary between vout1 and vout2 (isolation voltage 1000vdc); 4)where the regulation of the output voltage and the output ripple noise are demanded. microdc reserves the copyright 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 min. min. min. min. 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 cooling free air convection case material plastic (ul94-v0) short circuit protection continuous, automatic recovery mtbf 1000 k hours weight 15 g
wrd-yd-3w wrd-yd-3w wrd-yd-3w wrd-yd-3w wrd-yd-3w wrd-yd-3w wrd-yd-3w wrd-yd-3w series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 2 of 3 isolation isolation isolation isolation isolation isolation isolation isolation specifications specifications specifications specifications specifications specifications specifications specifications item item item item test test test test conditions conditions conditions conditions min. min. min. min. 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, 100khz/1v 100 pf *supply voltage must be discontinued at the end of short circuit duration. application application application application application application application application note note note note note note note note 1) 1) 1) 1) 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. 2) 2) 2) 2) recommended recommended recommended recommended circuit circuit circuit circuit all the wrd-yd-3w series have been tested according to the following recommended testing circuit before leaving factory. this series should be tested under 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 should not be too high, or may cause start-up problem. if you want to use the products in high emi, please choose our metal packaged products (wrd_yd-3w). for every channel of output, provided the safe and reliable operation is ensured, the greatest capacitance of its filter capacitor sees (table 1). general: cin: 5v,12v 100 f 24v&48v 22 f/10 f cout: 10 f/100ma 3) 3) 3) 3) input input input input current current current current while using unstable power source, please ensure the output voltage and ripple voltage do not exceed indexes of the converter. the preceding power source must be able to provide for converter sufficient starting current ip (figure 2). general: ip 1.4*iin-max 4) 4) 4) 4) 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 external capacitor table (table 1) output output output output output output output output external external external external external external external external capacitor capacitor capacitor capacitor capacitor capacitor capacitor capacitor table table table table table table table table (table (table (table (table (table (table (table (table 1) 1) 1) 1) 1) 1) 1) 1) vout(vdc) vout(vdc) vout(vdc) vout(vdc) cout(uf) cout(uf) cout(uf) cout(uf) 5 680 9 470 12 330 15 220 24 100 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 min. min. min. min. typ. typ. typ. typ. max. max. max. max. units units units units output power refer to product program 0.3 3 w main output voltage accuracy refer to recommended circuit 1 3 % vice-output voltage accuracy refer to recommended circuit 3 5 load regulation from 10% to 100% load 0.5 1* line regulation input voltage from low to high 0.2 0.5 temperature drift (vout) refer to recommended circuit 0.03 %/ ripple** 20mhz bandwidth 20 50 mvp-p noise** 20mhz bandwidth 75 150 switching frequency 100% load, input voltage range 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.
wrd-yd-3w wrd-yd-3w wrd-yd-3w wrd-yd-3w wrd-yd-3w wrd-yd-3w wrd-yd-3w wrd-yd-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 recommended recommended recommended recommended recommended recommended recommended recommended footprint(top footprint(top footprint(top footprint(top footprint(top footprint(top footprint(top footprint(top view) view) view) view) view) view) view) view) tube tube tube tube tube tube tube tube outline outline outline outline outline outline outline outline 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 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.
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