dc/dc converter ur b_mt-3wr3 series 201 5 . 09.01 - a/2 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 ? wide range of input voltage (4:1) ? efficiency up to 8 4 % ? no-load power consumption as low as 0. 12 w ? isolation voltage:1.5k vdc ? input under-voltage protection, output over- ? current protection , short-circuit protection ? operating temperature range: -40 to +85 ? low ripple & noise ? international standard pin-out ? meet iec60950, ul60950,en60950 standards 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, output short circuit protection, these products are widely used in fields such as i ndustrial control, electric power, instruments and communication. selection guide certification part no. input voltage (vdc) output efficiency (%,typ.) @ full load max. capacitive load( f) nominal (range) max. output voltage (vdc) output current (ma) (max./min.) ce/ul/cb URB2405MT-3WR3 24 (9-36) 40 5 600/0 7 8 / 80 2200 urb2412mt-3wr3 12 250/0 80/82 680 urb2415mt-3wr3 15 200/0 81/83 470 urb2424mt-3wr3 24 125/0 80/82 100 -- urb4815mt-3wr3 48 (18-75) 80 15 200/0 8 2 /8 4 470 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 -- 158/4 173/6 ma 48vdc input -- 7 9/3 81/5 reflected ripple current 24vdc input -- 120 -- 48vdc input -- 60 -- input impulse voltage (1sec. max.) 24vdc input -0.7 -- 50 vdc 48vdc input -0.7 -- 100 starting voltage 24vdc input -- -- 9 48vdc input -- -- 18 input under-voltage protection 24vdc input 5.5 6.5 -- 48vdc input 13 15.5 -- starting time nominal input& 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 hot plug unavailable note: *the voltage of ctrl pin is relative to input pin gnd.
dc/dc converter ur b_mt-3wr3 series 201 5 . 09.01 - a/2 page 2 of 5 m ornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation 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 -- 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 r ipple & 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 derating if the temperature is 71 (see fig. 1) -40 -- + 85 storage temperature -55 -- + 125 casing temperature rise ta=25 , nominal input, full load output -- +65 -- 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* p w m 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 p lastic dimensions 19.20*18.10*10.16 mm weight 3.50g(typ.) cooling method free 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 2kv (see fig.3- for recommended circuit) perf. criteria b c s 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 201 5 . 09.01 - a/2 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 201 5 . 09.01 - a/2 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 c3 ldm1 c1 mov fuse c2 cy vi n gnd + 1 c4 c0 + 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 , c1 330 f /50v 330 f /100v c2 , c3 4.7 f /50v 4.7 f /100v c4 refer to the cout in fig.2 ldm1 12 h cy1 1nf/2kv emc solution-recommended circuit pcb layout fig. 4 note: the min. distance of the bonding pads between input & output isolation capacitors (cy1) shall be 2mm. 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
dc/dc converter ur b_mt-3wr3 series 201 5 . 09.01 - a/2 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. recommended used in more than 5 % load, if the load is lower than 5 %, then the ripple index of the 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. if the product needs to be cleaned after welding, please wait to completely dried before electrical use it; 5. unless otherwise specified, data in this datasheet should be tested under the conditions of ta= 2 5 , humidity<75% when inputting nominal voltage and outputting rated load; 6. all index testing methods in this datasheet are based on our company s corporate standards; 7. the performance indexes of the product models listed in this 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; 8. we can provide product customization service; 9. 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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