dc/dc converter ur b_mt-3wr3 series 20 16 .0 9 . 30 -a/ 4 page 1 of 5 m ornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation 3w, ultra wide input isolated & regulated single output dc/dc converter cb patent protection rohs features ? ultra wide input voltage rang (4:1) ? high efficiency up to 84% ? no-load power consumption as low as 0.1 0 w ? isolation voltage:1.5k vdc ? input under-voltage protection , output short-circuit protection , over-current protection ? operating temperature range: -40 to +85 ? international standard pin-out ? iec60950 , ul60950 , en60950 approval urb_mt-3wr3 series products are of 3w output power, extremely wide range of voltage input of 9-36vdc, 18-75vdc, isolation voltage of 1500vdc, input under-voltage protection , output short circuit protection, over-current protection , these products are widely used in fields such as industrial control, electric power, instruments and communication. selection guide certification 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.) -- urb2403mt-3wr3 24 (9-36) 40 3.3 728/0 73/75 2200 ul / ce / cb urb2405mt-3wr3 5 600/0 78/80 2200 -- urb2409mt-3wr3 9 333/0 78/80 1000 ul / c e / cb urb2412mt-3wr3 12 250/0 80/82 680 URB2415MT-3WR3 15 200/0 81/83 470 urb2424mt-3wr3 24 125/0 80/82 100 ce urb4803mt-3wr3 48 (18-75) 80 3.3 728/0 73/75 2200 urb4805mt-3wr3 5 600/0 77/79 2200 urb4812mt-3wr3 12 250/0 80/82 680 urb4815mt-3wr3 15 200/0 82/84 470 urb4824mt-3wr3 24 125/0 80/82 100 notes: exceeding the maximum input voltage may cause permanent damage ; the efficiency value is measured in the input nominal voltage and output rated load. input specifications item operating conditions min. typ. max. unit input current (full load / no-load) 24vdc input series nominal input voltage 3.3v output -- 134/4 138/ 7 ma others -- 154/4 161/ 7 48 vdc input series nominal input voltage 3.3v output -- 67/ 4 69/ 7 others -- 77/ 4 82/ 7 reflected ripple current nominal 24vdc input series -- 120 -- nominal 48 vdc input series -- 60 -- surge voltage (1sec. max.) nominal 24vdc input series -0.7 -- 50 vdc nominal 48 vdc input series -0.7 -- 100 starting voltage nominal 24vdc input series -- -- 9 nominal 48 vdc input series -- -- 18 input under-voltage protection nominal 24vdc input series 5.5 6.5 -- nominal 48 vdc input series 13 15.5 -- starting time nominal input voltage & constant resistance load -- 10 -- ms input filter c filter ctr l* module turn-on ctrl pin floating or connected to ttl high level(3.5-12vdc) module turn-off ctrl pin connected to gnd or low level(0-1.2vdc) input current when switched off -- 6 10 ma
dc/dc converter ur b_mt-3wr3 series 20 16 .0 9 . 30 -a/ 4 page 2 of 5 m ornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation hot plug unavailable note: *the voltage of ctrl pin is relative to input pin gnd. 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 0%-100% load -- 0.5 1 transient recovery time 25% load step change , n ominal input voltage -- 300 500 s transient response deviation -- 3 5 % temperature coefficient full load -- -- 0.03 %/ ripple & noise* 20mhz bandwidth , 5%-100% load -- 30 120 mv p-p over-current protection input voltage range -- 150 250 %io short circuit protection hiccup protection note: *ripple and noise are measured by parallel cable method, please see dc-dc converter application notes for specific operation. 0%-5% load ripple&noise is no more than 5%vo. 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 1500 -- -- vdc insulation resistance input-output, insulation voltage 500vdc 1000 -- -- m isolation capacitance input-output, 100khz/0.1v -- 1000 -- pf operating temperature see fig. 1 -40 -- +85 storage temperature -55 -- +125 casing temperature rise ta=25 , nominal input voltage , full load output -- + 40 -- pin welding resistance temperature welding spot is 1.5mm away from the casing, 10 seconds -- -- +300 storage humidity non-condensing 5 -- 95 %rh reflow soldering temperature peak temp. 245 , maximum duration time 60s at 217 . for actual application, please refer to ipc/jedec j-std-020d.1. vibration 10-55hz, 10g, 30 min. along x, y and z switching frequency* pwm mode -- 350 -- khz mtbf mil-hdbk-217f@25 1000 -- -- k hours note:*this series of products using lower frequency technology, the switching frequency value is the test value in full load, when the load is reduced to 50% or less, the switching frequency decreases with decreasing load. physical specifications casing material black flame-retardant heat-proof plastic dimensions 19.20*18.10*10.16 mm weight 3.5g(typ.) cooling method free air convection emc specifications emi ce cispr22/en55022 class b (see fig.3- for recommended circuit) re cispr22/en55022 class b (see fig.3- for recommended circuit) ems esd iec/en61000-4-2 contact 4kv perf. criteria b rs 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 iec/en61000-4-5 line to line 2kv (see fig.3- for recommended circuit) perf. criteria b cs 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
dc/dc converter ur b_mt-3wr3 series 20 16 .0 9 . 30 -a/ 4 page 3 of 5 m ornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation product characteristic curve operating te mperature( ) te mperature de rating cur ve output powe r pe rcentage(%) -40 0 40 71 85 120 80 60 100 120 40 20 0 safe operating area fig. 1 design reference 1. typical 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 0 v dc cin dc cout fig. 2 vn cin cout 24vdc 100 f 10 f 48vdc 10 f - 47 f 10 f
dc/dc converter ur b_mt-3wr3 series 20 16 .0 9 . 30 -a/ 4 page 4 of 5 m ornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation 2. emc solution-recommended circuit vi n gnd +vo 0v dc/dc load c2 ldm1 mov fuse c1 cy 1 c3 c0 + vi n gnd 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 s 20 k3 0 s14k60 c0 68 0 f /50v 68 0 f /100v c 1 ,c 2 4.7 f /50v 4.7 f /100v c 3 refer to the cout in fig.2 ldm1 12 h cy1 1nf/2kv 3. it is not allowed to connect modules output in parallel to enlarge the power 4. for more information about mornsun emc filter products, please visit www.mornsun-power.com to download the selection guide of emc filter dimensions and recommended layout nc: pin to be isolated from circuitry
dc/dc converter ur b_mt-3wr3 series 20 16 .0 9 . 30 -a/ 4 page 5 of 5 m ornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation notes: 1. packing information please refer to product packing information which can be downloaded from www.mornsun-power.com . tube packing bag number : 58010114, reel packing bag number : 58010115 ; 2. the max. capacitive load should be tested within the input voltage range and under full load conditions; 3. if the product needs to be cleaned after welding, please wait to completely dried before electrical use it; 4. unless otherwise specified, parameters in this datasheet were measured under the conditions of ta=25 , humidity<75% rh with nominal input voltage and rated output load; 5. all index testing methods in this datasheet are based on our company s corporate standards; 6. we can provide product customization service , please directly contact our technicians for specific information; 7. specifications of this product are subject to changes without 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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