wra-ymt-2w&wrb-ymt-2w wra-ymt-2w&wrb-ymt-2w wra-ymt-2w&wrb-ymt-2w wra-ymt-2w&wrb-ymt-2w wra-ymt-2w&wrb-ymt-2w wra-ymt-2w&wrb-ymt-2w wra-ymt-2w&wrb-ymt-2w wra-ymt-2w&wrb-ymt-2w series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 1 of 3 selection selection selection selection selection selection selection selection guide guide guide guide guide guide guide guide order code input output efficiency (%,typ . ) voltage(vdc) voltage (vdc) current(ma) nominal range max* max . min . wra1205ymt-2w 12 9-18 22 5 200 20 74 wra1212 ym t-2w 12 9-18 22 12 83 8 78 wra1215 ym t-2w 12 9-18 22 15 67 7 78 wrb1203 ym t-1w6 12 9-18 22 3.3 500 50 70 wrb1205 ym t-2w 12 9-18 22 5 400 40 74 wrb1209 ym t-2w 12 9-18 22 9 222 22 76 wrb1212 ym t-2w 12 9-18 22 12 167 16 78 wrb1215 ym t-2w 12 9-18 22 15 133 13 79 wra2405 ym t-2w 24 18-36 40 5 200 20 74 wra2412 ym t-2w 24 18-36 40 12 83 8 78 wra2415 ym t-2w 24 18-36 40 15 67 7 78 wrb2403 ym t-1w6 24 18-36 40 3.3 500 50 72 wrb2405 ym t-2w 24 18-36 40 5 400 40 76 wrb2409 ym t-2w 24 18-36 40 9 222 22 78 wrb2412 ym t-2w 24 18-36 40 12 167 16 80 wrb2415 ym t-2w 24 18-36 40 15 133 13 80 *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 b b b b b b b b 24 24 24 24 24 24 24 24 12 12 12 12 12 12 12 12 y y y y y y y y m m m m t t t t t t t t - - - - - - - - 2 2 2 2 2 2 2 2 w w w w w w w w product series input voltage output voltage wide ( 2 :1) input range mini package style rated power 2w, 2w, 2w, 2w, wide wide wide wide input, input, input, input, isolated isolated isolated isolated & & & & regulated regulated regulated regulated single/dual single/dual single/dual single/dual output output output output 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 operating temperature: -40 c ~ +85 c 1500vdc isolation no heat sink required internal smd construction mtbf>1,000,000 hours short circuit protection(automatic recovery) industry standard pinout rohs compliance description description description description description description description description the wra_ ym t-2w & wrb_ ym t-2w 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 1 500vdc); 3) 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 range 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 short circuit protection continuous, automatic recovery cooling free air convection package material epoxy resin (ul94-v0) mtbf 1000 k hours weight 5.2 g
wra-ymt-2w&wrb-ymt-2w wra-ymt-2w&wrb-ymt-2w wra-ymt-2w&wrb-ymt-2w wra-ymt-2w&wrb-ymt-2w wra-ymt-2w&wrb-ymt-2w wra-ymt-2w&wrb-ymt-2w wra-ymt-2w&wrb-ymt-2w wra-ymt-2w&wrb-ymt-2w 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 85 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 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 wra_ymt-2w & wrb_ymt-2w 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 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). general: cin: 12v 100 f 24v&48v 10 f-47 f cout: 10 f/100ma input input input input current current current 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 flash startup current of this kind of dc/dc module. (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 single single single single single single single vout vout vout vout vout vout vout vout cout cout cout cout cout cout cout cout dual dual dual dual dual dual dual dual vout vout vout vout vout vout vout vout cout cout cout cout cout cout cout cout (vdc) (vdc) (vdc) (vdc) ( ( ( ( f) f) f) f) (vdc) (vdc) (vdc) (vdc) ( ( ( ( f) f) f) f) 3.3 2200 5 680 5 1000 9 470 9 680 12 330 12 470 15 220 15 330 - - 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 see above products program 0.2 2 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 0.5 1 * % line regulation input voltage from low to high 0.2 0.5 % temperature drift (vout) refer to recommended circuit 0.03 %/ output ripple& noise** 20mhz bandwidth 35 150 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.
wra-ymt-2w&wrb-ymt-2w wra-ymt-2w&wrb-ymt-2w wra-ymt-2w&wrb-ymt-2w wra-ymt-2w&wrb-ymt-2w wra-ymt-2w&wrb-ymt-2w wra-ymt-2w&wrb-ymt-2w wra-ymt-2w&wrb-ymt-2w wra-ymt-2w&wrb-ymt-2w 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 & & & & & & & & pin pin pin pin pin pin pin pin connections connections connections connections connections connections connections connections mechanical mechanical mechanical mechanical mechanical mechanical mechanical mechanical dimensions dimensions dimensions dimensions dimensions dimensions dimensions dimensions note: unit:mm[ inch] pin section tolerances: 0.10mm[ 0 .004inch] general tolerances: 0 .25mm[ 0.010inch] footprint footprint footprint footprint footprint footprint footprint footprint details details details details details details details details pin pin pin pin single single single single dual dual dual dual 1 gnd gnd 7 nc nc 8 nc 0v 9 +vo +vo 10 0v -vo 16 vin vin nc: no connection 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) dual/single output tube tube tube tube tube tube tube tube outline outline outline outline outline outline outline outline dimensions dimensions dimensions dimensions dimensions dimensions dimensions dimensions note: unit :mm[inch] general tolerances: 0 .50mm[ 0 .020inch] l=530mm[20.866inch] tube quantity: 21pcs l=220mm[8.661inch] tube quantity: 8pcs 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. 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. capacitor max load tested at input voltage range and full load. 4. all specifications measured at ta=25 , humidity<75%, nominal input voltage and rated output load unless otherwise specified. 5. in this datasheet, all the test methods of indications are based on corporate standards. 6. only typical models listed, other models may be different, please contact our technical person for more details.
|
