dc/dc converte r urf_lp-20wr3 series 201 4 .07.22- a /0 page 1 of 6 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation 20w,ultra wide input, isolated & regulated single output , dip package, dc-dc converter patent protection rohs features z ultra wide range of input voltage (4:1) z efficiency up t o89 % z no-load power consumption as low as 0.2w z isolation voltage :3k vdc z operating temperature range: -40 to +85 z input under-voltage protection, output short circuit protection, over-voltage protection, over-current protection z meet cispr22/en55022 class a z international standard pin-out z a2s ( w ring mounting) and a4s (35mm rail mounting) products featuring anti-reverse connection for input urf_lp-20wr3 series are applied to ultra wide voltage range input , high isolation such as power industry, data transmission device, batter y power supply device, tele-comunication device, distributed power supply system, remote control system, industrial robot system etc. selection guide part no. input voltage (vdc) output efficiency (%,min./typ.) @ full load max. capacitive load( f) nominal (range) max. output voltage (vdc) output current (ma) (max./min.) urf2403lp-20wr3 24 (9-36) 40 3.3 5000/250 84/86 10000 urf2405lp-20wr3 5 4000/200 87/89 10000 urf2409lp-20wr3 9 2222/111 86/88 4700 urf2412lp-20wr3 12 1667/84 86/88 1600 URF2415LP-20WR3 15 1334/67 87/89 1000 urf2424lp-20wr3 24 833/42 87/89 500 urf4803lp-20wr3 48 (18-75) 80 3.3 5000/250 84/86 10000 urf4805lp-20wr3 5 4000/200 86/88 10000 urf4812lp-20wr3 12 1667/84 86/88 1600 urf4815lp-20wr3 15 1334/67 87/89 1000 urf4824lp-20wr3 24 833/42 87/89 500 notes product model with a suffix of ?a2s? means chassis mounting and that with a suffix of ?a4s? indicates din-rail mounting (e.g. urf2405lp-20wr3a2s mean s chassis mounting; urf2405lp-20wr3a4s means din-rail mounting ); absolute maximum rating without damage on the converter, but it isn't recommended; efficiency is measured in nominal input voltage and rated output load;a2s (wiring) and a4s (rail) model due to input reverse polarity protection, min imum efficiency greater than min.-2 is qualified. input specifications it em op era ti n g c on diti ons mi n. typ . m ax. u n it in p ut current (full load / no-load) 24vdc in p ut 3.3v, 5v output -- 936/20 -- m a others -- 936/5 -- 4 8vdc in p ut 3.3v, 5v output -- 468/10 -- others -- 468/4 -- reflected ri pp le current 24vdc in p ut -- 30 -- 4 8vdc in p ut -- 30 -- in p ut im p ulse v olta g e(1sec.max.) 24vdc in p ut -0.7 -- 50 v dc 4 8vdc in p ut -0.7 -- 100 startin g v olta g e 24vdc in p ut -- -- 9 4 8vdc in p ut -- -- 18 under-volta g e t urn-off 24vdc in p ut 5.5 6.5 -- 48vdc input 14.0 15.5 --
dc/dc converte r urf_lp-20wr3 series 201 4 .07.22- a /0 page 2 of 6 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation starting time nominal input& constant resistance load -- 10 -- ms in p ut filter pi filter ctrl * module switch on ctrl sus p ended or connected t ott l hi g h level (3.5-12vdc) module switch of f ctrl p in connected t o gnd or low level (0-1.2vdc) in p ut current w hen switched of f -- 4 7 m a note: *the voltage of ctrl pin is relative t oinputpingnd. output specifications item operating conditions min. typ. max. unit output voltage accuracy -- 1 3 % line regulation full load, the input voltage is from low voltage to high voltage -- 0.2 0.5 load regulation 5%-100% load -- 0.5 1 transient recovery time 25%loadstepchange -- 300 500 s transient response deviation 3.3v,5v output -- 5 8 % others -- 3 5 temperature drift coefficient full load -- 0.02 -- %/ ripple & noise * 20mhz bandwidth -- 50 100 mv p-p output over-voltage protection input voltage range 110 -- 160 %vo output voltage regulation trim -- 10%vo -- vdc output over-current protection 110 140 190 %io output short circuit protection continuous, self-recovery note: *ripple and noise tested with ?parallel cable? method, please see dc-dc converter application notes for specific operation methods. general specifications item operating conditions min. typ. max. unit insulation voltage input-output, with the test time of 1 minute and the leak current lower than 1ma 3000 -- -- vdc insulation resistance input-output, insulation voltage 500vdc 1000 -- -- m ? isolation capacitance input-output, 100khz/0.1v -- 500 -- pf operating temperature derating if the temperature is 55 (see fig. 1) -40 -- 85 storage temperature -55 -- 125 storage humidity non-condensing 5 -- 95 %rh max. operating temperature for casing within the operating temperature curve -- -- 105 % pin welding resistance tempera ture welding spot is 1.5mm away from the casing, 10 seconds -- -- 300 vibration 10-55hz, 10g, 30 min. along x, y and z switching frequency * pwm mode -- 270 -- khz mtbf mil-hdbk-217f@25 1000 -- -- k hours note:*this series of products using reduced frequency technology, the swit ching frequency is test value of full load,when the load is reduced to belo w50%,the switching frequency decreases with decreasing load. physical specifications casing material plastic (ul94-v0) package dimensions horizontal package 51.50*26.50*12.00 mm a2s wiring package 76.00*31.50*21.20 mm a4s rail package 76.00*31.50*25.80 mm weight horizontal package/a2s wiring package/a4s rail package 24.00g/46.00g/66.00g (typ.) cooling method free air convection
dc/dc converte r urf_lp-20wr3 series 201 4 .07.22- a /0 page 3 of 6 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation emc specifications emi conducted disturbance cispr22/en55022 class a (bare component)/ class b (see fig.3- for recommended circuit) radiated emission cispr22/en55022 class a (bare component)/ class b (see fig.3- for recommended circuit) ems electrostatic discharge iec/en61000-4-2 contact 4kv perf. criteria b radiation immunity iec/en61000-4-3 10v/m perf. criteria a eft iec/en61000-4-4 2kv (see fig.3- for recommended circuit) perf. criteria b surge immunity iec/en61000-4-5 2kv (see fig.3- for recommended circuit) perf. criteria b conducted disturbance immunity iec/en61000-4-6 3 vr.m.s perf. criteria a immunities of voltage dip, drop and short interruption iec/en61000-4-29 0-70% perf. criteria b product characteristic curve operat ing temperat ure( ) temperature derating curve output power percen tage(%) -40 0405585 120 80 60 100 120 40 20 0 safe operating area fig. 1 urf2405lp- 20wr3 70 75 80 85 90 95 100 9 121518212427303336 efficiency(%) input voltage(v) efficiency vs input voltage(full load) urf2405lp- 20wr3 40 50 60 70 80 90 100 5 102030405060708090100 efficiency(%) output current percentage(%) efficiency vs output load(vin=vin-nominal) urf4815lp- 20wr3 50 55 60 65 70 75 80 85 90 95 100 18 24 30 36 42 48 54 60 66 72 75 efficiency(%) input voltage (v) efficiency vs input (full load) urf4815lp- 20wr3 50 55 60 65 70 75 80 85 90 95 100 5 102030405060708090100 efficiency(%) output current percentage (%) efficiency vs output load(vin=vin-nominal) design reference 1. t ypical application all the dc/dc converters of this series are tested according to the recommended circuit (see fig. 2) before delivery. if it is required to further reduce input and output ripple, properly increase the input & output of additional capacitors cin and cout or select capacitors of low equivalent impedance provided that the capacitance is no larger than the max. capacitive load of the product. vin gnd +vo 0v dc cin dc cout fig. 2 vin(vdc) cout( f) cin( f) 3.3/5 470 100 9/12/15 220 24 100
dc/dc converte r urf_lp-20wr3 series 201 4 .07.22- a /0 page 4 of 6 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation 2. emc solution-recommended circuit ldm1 c0 mov fuse c1 v in gnd + vin gnd +vo 0v dc/dc cy 1 cy 2 c2 load fig. 3 notes: part in the fig. 3 is used for ems test and part for emi filtering; selected based on needs. parameter description model vin:24v vin:48v fuse choose according to actual input current mov s14k35 s14k60 c0 330 f/50v 330 f/100v c1 1 f/50v 1 f/100v c2 refer to the cout in fig.2 ldm1 4.7 h cy1 1nf/3kv cy2 1nf/3kv emc solution-recommended circuit pcb layout fig. 4 note: the min. distance of the bonding pads between input & output isolation capacitors (cy1/cy2) shall be 2mm. 3. application o f t rim and calculation o f t rim resistance 0v r 2 r 1 r 3 v ref r t trim +vo t 0v r 2 r 1 r 3 v ref r t trim +vo t trim up t rim down applied circuits of trim (part in broken line is the interior of models) calculation formula of trim resistance: up: a= v ref vo?-vref r 1 r= t a r 2 r-a 2 -r 3 down: a= v re f vo?-vref r 2 r= t ar 1 r-a 1 -r 3 r t is trim resistance a is a self-defined parameter, with no real meaning. vout(v) r1(k )r2(k )r3(k )vref(v) 3.3 4.801 2.87 12.4 1.25 5 2.883 2.87 10 2.5 9 7.500 2.87 15 2.5 12 11.000 2.87 15 2.5 15 14.494 2.87 15 2.5 24 24.872 2.87 17.8 2.5
dc/dc converte r urf_lp-20wr3 series 201 4 .07.22- a /0 page 5 of 6 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation 4 . t he product does not support output in parallel w ith powe r pe r liter o r hot-plug use 5. for more information please find the app lication notes on www.mornsun-power.com dimensions and recommended layout urf_lp-10wr3a2s dimensions
dc/dc converte r urf_lp-20wr3 series 201 4 .07.22- a /0 page 6 of 6 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation urf_lp-10wr3a4s dimensions note: 1. packing information please refer t o 'product packing information'. the packing bag number o f horizontal package : 58210039, t he packing bag number of a2s/ a4s package:58220022; 2. recommended used in more t han 5% load, i f t he load is lower t han 5%, t hen t he ripple inde x of t he product may exceed the specification, but does not affect the reliability of the product 3. the max. capacitive load should be tested within the input voltage range and under full load conditions; 4. unless otherwise specified, data in this datas heet should be tested under the conditions of ta=25 , humidity<75% when inputting nominal voltage and outputting rated load; 5. all index testing methods in this datasheet are based on our company?s corporate standards; 6. the performance indexes o f t he product models listed in t his datasheet are as above, but some indexes of non-standard model products will exceed the above-mentioned requirements, and please directly contact our technicians for specific information; 7. we can provide product customization service; 8. specifications of t his product are subject t o changes w ithout prior notice. mornsun guangzhou 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: 86-20-38601850-8801 fax: 86-20-38601272 e-mail: info@mornsun.cn
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