the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. ls03-05bxxk a/1-2012 page 1 of 4 selection guide model package power output (vo/io) ripple and noise (typ.) efficiency (%) (typ.) ls03-05b05k 2.5w 5v/500ma 50mv 70 LS03-05B12K 38.5x22x11mm 3w 12v/250ma 60mv 78 input specifications input voltage range 100~400vdc(85~264vac) input current 40ma(typ) leakage current none external input fuse (recommended) 1a/250v slow-blow output specifications voltage accuracy 2% input variation 0.5% (typ) load variation (10%~100%) 1% (typ) ripple & noise(p-p) (20mhz bandwidth) 60mv(typ) 120mv( max) short circuit protection continuous, automatic resume over temperature protection 150 c (max) common specifications operating -40 c ~ +85 c (55 85 ) 1.33%/ c power derating (-40 -20) 2%/ 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 ce cispr22/en55022 class b(with typical applications figure 3) emi re cispr22/en55022 class b(with typical applications figure 3) esd iec/en61000-4-2 contact 2kv perf. criteria b rs iec/en61000-4-3 10v/m perf. criteria a iec/en61000-4-4 2kv (without external circuit) perf. criteria b emc ems eft iec/en61000-4-4 4kv (with typical applications figure 3) perf. criteria b ls03-05bxxk 3w,high voltage dc-dc(ac-dc) converter ls03 series ----- 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. for harsh emc environment, this series of products must use the refered application circuit. 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 part number system special mark put voltage voltage output power output voltage output style in isolation package style product series LS03-05B12K
the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. ls03-05bxxk a/1-2012 page 2 of 4 surge iec/en61000-4-5 2kv/ 4kv (with typical applications figure 3) perf. criteria b cs iec/en61000-4-6 10 vr.m.s perf. criteria a pfm iec/en61000-4-8 10a/m perf. criteria a emc ems voltage dips short and interruptions immunity iec/en61000-4-29 0%-70% perf. criteria b case material ul94v-0 install pcb mtbf >300,000h @25 c note: 1. external electrolytic capacitor are required to models when ac input, more details refer to typical applications. 2. ripple and noise were measured by the method of anear measure (more details refer to the anear measure). 3. all specifications measured at ta=25 c, 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. anear measure copper sheet load connect oscillograph probe fuse l n note: c1: 1 f (ceramic capacitor) c2: 10 f (electrolytic capacitor) input voltage vs load temperature vs load load(%) 100 340 400 100 60 80 70 vdc 110 240 264 85 vac 40 100 60 80 -20 55 85 -40 load(%) temperature( ) typical efficiency curve ls03 dc input efficiency cure 40 45 50 55 60 65 70 75 80 85 102030405060708090100 load(%) efficiency(%) 100vdc input efficiency 200vdc input efficiency 300vdc input efficiency 400vdc input efficiency ls03-05bxxk dc input rated load efficiency curve 66 68 70 72 74 76 78 80 82 84 100 150 200 250 300 350 400 input voltage(vdc) efficiency(%) ls03-05b05k efficiency(100% load) LS03-05B12K efficiency(100% load) ls03 ac input efficiency cure 40 45 50 55 60 65 70 75 80 85 10 20 30 40 50 60 70 80 90100 load (%) efficency (%) 85vac input efficiency 110vac input efficiency 120vac input efficiency 220vac input efficiency 230vac input efficiency 240vac input efficiency 264vac input efficiency ls03-05bxxk ac input rated load efficiency curve 66 68 70 72 74 76 78 80 82 84 86 85 110 120 220 230 240 264 input voltage(vac) efficiency(%) ls03-05b05k efficiency(100% load) LS03-05B12K efficiency(100% load)
the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. ls03-05bxxk a/1-2012 page 3 of 4 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 typical applications c2 c3 7 +vo -vo tvsrl 3 1 l n c1 + 10 + cy 12 fuse ntc mov figure 1 ls03-05bxxk l n +vo -vo ac-dc l n +vo -vo figure 2 note: this application is not supported for this series. can use mornsun s fc-l01d output n l n l lcm mov r2 r1 r3 cx cy3 cy4 acdc cy1 cy2 c1 + 10 cy ldm fuse figure 3 ls03 series recommended circuit for application require higher emc standard (external circuit output same as above) figure 4 emc application circuit pcb layout safety and recommend wiring: linewidth a 3mm,c 9mm external capacitors typical value output voltage c1 c2 c3 fuse tvs 5v smbj7.0a 12v 10 f/400v 1 f/50v (ceramic capacitor) 150 f/25v 1a/250v smbj20a note: for standard emc requirement, please refer to figure 1 , if higher emc requirement ,please refer to figure 3. 1. c1:ac input, is filtering electrolytic capacitor (which is required), when input voltage is below 100vac, and the value of c1 is 22 f/400v. dc input, is a filtering capacitor in emc filter, the value of c1 is 10 f/400v(when input voltage is above 370vdc, and the value of c1 is 10 f/450v), if emc performance is not required,c1 could not need. 2. c2 is ceramic capacitor, it is used to filter high frequency noise. output filtering capacitor c3 (which is required when ac input or dc input) is recommended 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. tvs is a recommended component to protect post-circuits (if converter fails). 3. recommended external circuit parameters in figure 3: mov varistor, model: 561kd14 it is used to protect the device under surge; r1 r2 2 /3w winding resistor r3 1m /2w cy cy1 cy2 cy3 cy4 102m/400vac cx 0.22 f/275vac lcm 10mh-30mh ldm 300 h fc-l01d mornsun s 2kv/4kv surge protector. 4. fuse 1a/250v slow-blow
the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. ls03-05bxxk a/1-2012 page 4 of 4 outline dimensions & footprint details 1 7 3 10 12 cap -vin(n) -vo +vo +vin(l) 13 7 1012 ? 1.30[0.051] m a x 2 2 . 0 0 [ 0 . 8 6 6 ] 13 7 1012 1.30[0.051] 0.84[0.033] max38.50[1.516] 27.94[1.100] 22.86 [0.900] 5.08[0.200] 12.70[0.500] 6 . 0 0 [ 0 . 2 3 6 ] 0 . 4 0 [ 0 . 0 1 6 ] m a x 1 1 . 0 0 [ 0 . 4 3 3 ] pin function footprint details note: unit: mm[inch] 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 packaging box dimensions: l*w*h=430*175*160mm package quantity: 100pcs outer packaging box dimensions: l*w*h=560*450*520mm package quantity:900pcs mechanical dimensions & recommended footprint packaging diagram note:gridmm 2.54*2.54 sip package ( ) frontview ( ) bottomview 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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