the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. wra_cs-1w & wrb_cs-1w a/4-2012 page 1 of 3 wra_cs-1w & wrb_cs-1w series 1w, wide input, isolated & regulated dual/single output dc-dc converter patent protection rohs product program input output voltage (vdc) current (ma) part number nominal(range) max* no load (ma)(typ) voltage (vdc) max min efficiency (%, typ.) wra0505cs-1w 5 100 10 71 wra0509cs - 1w 9 55 5 72 wra0512cs-1w 12 42 4 73 wra0515cs-1w 15 33 3 73 WRB0503CS-1W 3.3 303 30 66 wrb0505cs-1w 5 200 20 70 wrb0509cs-1w 9 111 11 72 wrb0512cs-1w 12 83 8 73 wrb0515cs-1w 15 67 7 72 wrb0524cs-1w 5 (4.5-9.0) 11 40 24 42 4 70 wra1205cs-1w 5 100 10 75 wra1209cs-1w 9 55 5 76 wra1212cs-1w 12 42 4 77 wra1215cs-1w 15 33 3 76 wrb1203cs-1w 3.3 303 30 68 wrb1205cs-1w 5 200 20 75 wrb1209cs-1w 9 111 11 77 wrb1212cs-1w 12 83 8 78 wrb1215cs-1w 15 67 7 78 wrb1224cs-1w 12 (9.0-18) 22 20 24 42 4 77 wra2405cs-1w 5 100 10 76 wra2409cs - 1w 9 55 5 77 wra2412cs-1w 12 42 4 78 wra2415cs-1w 15 33 3 78 wrb2403cs-1w 3.3 303 30 70 wrb2405cs-1w 5 200 20 73 wrb2409cs-1w 9 111 11 76 wrb2412cs-1w 12 83 8 78 wrb2415cs-1w 15 67 7 76 wrb2424cs-1w 24 (18-36) 40 10 24 42 4 77 wra4805cs-1w 5 100 10 75 wra4809cs-1w 9 55 5 76 wra4812cs-1w 12 42 4 78 wra4815cs-1w 15 33 3 78 wrb4803cs-1w 3.3 303 30 71 wrb4805cs-1w 5 200 20 73 wrb4809cs-1w 9 111 11 75 wrb4812cs-1w 12 83 8 78 wrb4815cs-1w 15 67 7 76 wrb4824cs-1w 48 (36-72) 80 5 24 42 4 78 features wide (2:1) input range miniature sip package regulated outputs i/0 isolation 1500vdc short circuit protection(automatic recovery) external on/off control internal smd construction operating temperature: -40 c to +85 c rohs compliance applications the wra_cs-1w & wrb_cs-1w 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. model selection wra2412cs-1w product series input voltage output voltage package style rated power mornsun science & technology co.,ltd. address: no. 5, kehui st. 1, kehui development center, science ave., guangzhou science city, luogang district, guangzhou,p.r.china. tel: 86-20-38601850 fax:86-20-38601272 http://www.mornsun-power.com * input voltage can t exceed this value, or will cause the permanent damage. note:1.models listed with strike-through text have been officially discontinued. 2.operation under 10% load will not damage the converter; however, they may not meet all specification listed.
the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. wra_cs-1w & wrb_cs-1w a/4-2012 page 2 of 3 common specification application note item test conditions min typ. max units storage humidity 95 % operating temperature -40 85 storage temperature -50 125 temp. rise at full load 15 35 lead temperature 1.5mm from case for 10 seconds 300 c isolation voltage tested for 1 minute and 1ma max 1500 vdc isolation resistance test at 500vdc 1000 m isolation capacitance input/output, 100khz/1v 80 pf cooling free air convection short circuit protection continuous, automatic recovery case material plastic(ul94-v0) mtbf 1000 k hours weight 5.5 g output specifications item test conditions min typ. max units output voltage accuracy input voltage range refer to output load 1 3 10% to 100% load (wrb_cs-1w) 0.5 0.75 load regulation 10% to 100% load (wra_cs-1w) 0.5 1.0 line regulation input voltage from low to high 0.2 0.5 % temperature drift (vout) refer to recommended circuit 0.03 %/ c ripple & noise 20mhz bandwidth 25 100 mvp-p switching frequency input voltage range 100% load 180-550(pfm) khz note: 1. test ripple and noise by parallel cable method. see detailed operation instructions at testing of power converter section, application notes. 2. see the recommended circuits for more details. typical temperature curve operating temp.( ) c ctrl terminal when open or high impedance, the converter work well; when this pin is high ; the converter shutdown; it should be note that the input current (ic) should between 5- 10ma, exceeding the maximum 20ma will cause permanence damage to the converter. the value of r can be derived as follows: r= recommended circuit if you want to further decrease the input/output ripple, an lc filtering network may be connected to the input and output ends of the dc/dc converter, see (figure 1). single output +vo 0v cout 6 7 8 cs cin vin gnd 2 1 3 vc r lin ic d1 dual output +vo 0v cout 6 8 7 cout lout lout -vo cin vin gnd 2 1 3 vc r lin ic d1 (figure 1) 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: 5v,12v 100 f 24v,48v 10uf-47 f cout: 100 f(typ.) lin: 4.7 h-120 h lout: 2.2 h-10 h cs: 10 f-22 f external capacitor table(table 1) single vout (vdc) cout ( f)(max) dual vout (vdc) cout ( f) (max) 3.3 1000 - - 5 820 5 470 9 680 9 330 12 560 12 270 15 470 15 100 24 330 - - input 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 i n p u t c u r r e n t ( a ) input voltage (v) input voltage range ip no parallel connection or plug and play. v c -v d -1.0 ic
the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. wra_cs-1w&wrb_cs-1w a/4-2012 page 3 of 3 outline dimensions & footprint details 1 3 2 5 nc gnd -vo +vo 0v 6 ctrl vin gnd +vo ? 1.00 [0.039] 2 3 5 6 7 8 1 vin 8 cs 7 ctrl 0v footprint details note: unit:mm[inch] pin section tolerances: 0.10mm[ 0.004inch] general tolerances: 0.25mm[ 0.010inch] mechanical dimensions recommended footprint tube outline dimensions note: unit :mm[inch] general tolerances: 0.50mm[ 0.020inch] 22.00 [0.866] 2 3 5 6 7 8 9 . 5 0 [ 0 . 3 7 4 ] 1 1 . 3 0 [ 0 . 0 5 1 ] 0 . 3 0 [ 0 . 0 1 2 ] 0.50[0.020] 17.78[0.700] (bottom view) 0 . 5 0 [ 0 . 0 2 0 ] 1 2 . 0 0 [ 0 . 4 7 2 ] 4 . 1 0 [ 0 . 1 6 1 ] 2.54[0.100] (front view) nc: no connection pin single dual nc l=530mm[20.866inch] devices per tube quantity: 22pcs l=220mm[8.661inch] devices per tube quantity: 8pcs short tube inner package dimensions: l*w*h= 255*170*80mm short tube outer package dimensions(with six inner package boxes): l*w*h= 375*280*270mm long tube inner package dimensions: l*w*h= 580*200*100mm long tube outer package dimensions(with two inner package boxes): l*w*h= 600*215*220mm long tube outer package dimensions(with three inner package boxes): l*w*h= 600*215*325mm 12.40 [0.488] 1 4 . 4 0 [ 0 . 5 6 7 ] 2 0 . 4 0 [ 0 . 8 0 3 ] 6.40 [0.252] note: grid mm 2.54*2.54. note: 1. all specifications measured at ta=25 c, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 2. in this datasheet, all the test methods of indications are based on corporate standards. 3. only typical models listed, other models may be different, please contact our technical person for more details.
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