the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. LS03-05BY7S a/1-2011 page 1 of 3 product program model package power output (vo1/io1) ripple and noise (typ.) efficiency (%) (typ.) LS03-05BY7S 35.0x22.5x10.5mm 3w 7.5v/400ma 50mv 72 output specifications voltage set accuracy 2% input variation 0.5% (typ) load variation (10% ~ 100%) 1% (typ) ripple & noise(p-p) (20mhz bandwidth) 50mv(typ) 100mv( max) short circuit protection continuous, automatic resume over temperature protection 150 c (max) note: ripple and noise were measured by the method of anear measure (the details see the anear measure). common specifications operating: -40 c ~ +85 c power derating (above 55 c): 1.33%/ c storage -40 c ~ +105 c temperature ranges case temperature: +90 c (max) humidity 85%(max) temperature coefficient 0.02%/ c switching frequency 100khz(typ) i/o- isolation voltage 2000vac/1min case material ul94v-0 install pcb mtbf >300,000h @25 c LS03-05BY7S 3w,high voltage dc-dc(ac-dc) converter ls ----- are high efficiency green power modules with miniature packaging provided by mornsun. the features of this series are: wide input voltage, dc and ac all in one, high efficiency, high reliability, low loss, safety isolation etc. they are widely used in industrial, office and civil equipments, as well as applications where no special requirement for emc performance. it is recommended to add emi suppression circuit or take measure to shield when there is strict requirement for emc performance. product features 1. wide input voltage:100 ~ 400vdc(85 ~ 264vac) 2. over temperature protection and short circuit protection 3. high efficiency, high density 4. low loss, green power 5. multiple models available 6. industrial level specifications model selection special mark put voltage voltage output power output voltage output style in isolation package style product series LS03-05BY7S input specifications input voltage range 100~400vdc(85~264vac) input current 40ma(typ) leakage current none external input fuse (recommended) 0.5a/250v
the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. LS03-05BY7S a/1-2011 page 2 of 3 structure figure dc/dc convertor +vin(l) -vin(n) + c1 external capacitor 12 7 10 1 3 rectificate contrl circuit feedback loop voltage sampling rectifier filter circuit +vo -vo anear measure 7 c2 c3 25.4mm 25.4mm fuse 10 + c1 copper sheet load connect oscillograph probe c2:10uf c3:0.1uf typical applications c2 12 c3 7 +vo -vo tvs rl 3 1 +vin -vin fuse + mov c2 12 c3 7 +vo -vo tvsrl 3 1 l n fuse c1 + 10 + nf c6 c4 c5 mov emcfilter ls03 dc input typical application ls03 ac input typical application cy input voltage vs load temperature vs load 100 340 400 100 60 80 load(%) 70 vdc 110 240 264 85 vac 40 100 60 80 load(%) temperature( c) -20 55 85 -40
the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. LS03-05BY7S a/1-2011 page 3 of 3 external capacitors typical value output voltage c1 c2 c3 fuse tvs 3.3v 10 f/400v 100 f/25v 0.1 f/50v (ceramic capacitor) 0.5a/250v p4ke10a note: 1. filtering capacitors c1 is electrolytic capacitors, c1 is used in ac input, when input voltage is below 100vac, and the value of c1 is 22 f/400v. output filtering capacitors c2 is r ecommended to use high frequency and low impedance electrolytic capacitors. for capacitance and current of capacitor please refer to manufacture s datasheet. voltage derating of capacitor should be 80% or above. c3 is ceramic capacitor, it is used to filter high frequency noise. tvs is a recommended component to protect post-circuits (if converter fails). 2. if emc performance is required, recommended to add emc filter at the input end. c4: x capacitor, recommended parameter: 0.1 f/275v c5,c6: y capacitor, recommended parameter: 220pf/400v cy: y capacitor, recommended parameter: 102k/400v nf: common-mode choke, recommended parameter:10mh-30mh 3. mov: voltage dependent resistor, model 471kd07. it is used to protect converter in lightning strike and surge. outline dimensions & footprint details mechanical dimensions & recommended footprint packaging diagram sippackage 1 7 3 10 12 cap -vin(n) -vo +vo pin function footprint details note: first angle projection unit: mm[inch] pin section: 0.84*0.40mm[0.033*0.016inch] pin section tolerances: general tolerances: 0.50mm[0.020inch] 0.10mm[ 0.004inch] small white box dimensions: l*w*h=163*150*35mm package quantity: 10pcs inner box dimensions: l*w*h=430*175*160mm package quantity: 100pcs outer box dimensions: l*w*h=560*450*520mm package quantity:900pcs +vin(l) 0.40 [0.016] 0.84[0.033] 1.30 [0.051] max3.53 [0.139] max35.00 [1.378] 2 2 . 5 0 [ 0 . 8 8 6 ] max10.50 [0.413] 1 3 7 1012 m a x 2 5 . 5 0 [ 1 . 0 0 4 ] 27.94 [1.100] 5.08 [0.200] 22.86 [0.900] 12.70 [0.500] m i n 3 . 0 0 [ 0 . 1 1 8 ] ? 1 . 0 0 [ 0 . 0 3 9 ] 1 . 5 0 [ 0 . 0 5 9 ] max3.53 [0.139] 5.08 [0.200] 12.70 [0.500] 22.86 [0.900] 27.94 [1.100] max35.00 [1.378] m a x 1 0 . 5 0 [ 0 . 4 1 3 ] 1 3 7 1012 note gridmm : :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. 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
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