dc/dc converte r urf1d_qb series 201 4 .12.09-a/1 page 1 of 8 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation 50w/75w/100w, wide input voltage, isolated ®ulated single output dc-dc converter patent protection rohs features z w ide range o f input v oltage : 66-160v z efficiency up to 92% z low no-load power z isolation voltage 3000vdc z operating temperature range:-40 ~+100 z input under-voltage protection, output over-voltage, over-current, short circuit, over-temperature protection z international standard: 1/4 brick z meets requirements of ul60950 and railway standard en50155 urf1d_qb series is a high performance product designed for the field of railway applications. output power contains 50w/75w/100w, no min. load requirement, wide input voltage 66-160vdc, which allows the base plate temperature up to 100 . further product feathers include input under-voltage protection, output over-voltage protec tion, short circuit protection, over temperature protection, remote control and compensated, output voltage regulation functions. meets the en50155 railway standard and ul/en60950 safety standards. widely used in the railway system and associated equipment. selection guide part no. input voltage (vdc) input voltage (vdc) efficiency (%, typ) @ full load max. capacitive load( f) nominal (range) max. * output voltage(vdc) output current (ma)(max./min.) URF1D24QB-50W 110 (66-160) 170 24 2083/0 92 3000 URF1D24QB-50Wh urf1d24qb-75w 24 3125/0 92 3000 urf1d24qb-75wh urf1d24qb-100w 24 4167/0 92 3000 urf1d24qb-100wh note: *absolute maximum rating without damage on the converter, but it isn't recommended. input specifications item operating conditions min. typ. max. unit input current (no-load / full load) nominal input urf1d24qb-100w(h) -- 5/988 -- ma urf1d24qb-75w(h) -- 5/741 -- URF1D24QB-50W(h) -- 5/494 -- reflected ripple current nominal input -- 50 -- input surge voltage (1sec. max.) -0.7 -- 180 vdc start-up threshold voltage -- -- 66 under-voltage shutdown voltage -- 55 -- start-up time -- 25 -- ms input filter pi filter ctrl* module switch on ctrl psuspended or connected to ttl high level (3.5-12vdc) module switch of f ctrl connected to -vin or low level (0-1.2vdc) input current when switched off -- 2 -- ma note: * t he voltage of ctrl pin is relative t oinputpin-vin. output specifications item operating conditions min. typ. max. unit output voltage accuracy nominal input,10%-100% load -- -- 2 % line regulation full load, the input voltage is from low to high -- -- 0.3 load regulation nominal input,10%-100% load -- -- 0.5
dc/dc converte r urf1d_qb series 201 4 .12.09-a/1 page 2 of 8 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation transient recovery time 25% load step change -- 300 500 s transient response deviation -- 3 5 % temperature drift coefficient full load -- -- 0.03 %/ ripple & noise * 20mhz bandwidth -- 100 300 mvp-p output voltage regulated range(trim) -10 -- 10 % output voltage remote compensation(sense) -- -- 5 output over-voltage protection input voltage range 110 -- 140 %vo output over-current protection 110 130 180 %io output short circuit protection continuous note: * the measuring method of ripple and noise, please refer to fig. 1 . general specifications item operating conditions min. typ. max. unit insulation voltage input-output input-output, with the test time of 1 minute and the leak current less than 1ma 3000 -- -- vdc input-case 1500 -- -- output-case 1500 -- -- insulation resistance input-output, i nsulation voltage 500vdc 1000 -- -- m ? isolation capacitance input-output, 100khz/0.1v -- 2200 -- pf switching frequency pfm mode -- 220 -- khz mtbf mil-hdbk-217f@25 500 -- -- k hours environmental specifications item operating conditions min. max. unit base- plate temperature range within the operating temperature curve -40 100 over-temperature protection base- plate temperature -- 115 thermal resistance urf1dxxqb-100w natural convection 10.7 -- /w 200lfm convection 6.0 -- 400lfm convection 5.0 -- 1000lfm convection 4.0 -- urf1dxxqb-100wh natural convection 5.1 -- 200lfm convection 2.8 -- 400lfm convection 2.2 -- 1000lfm convection 1.8 -- storage humidity non-condensing 5 95 %rh storage temperature -55 125 lead temperature welding spot is 1.5mm away from the casing, 10 seconds -- 300 cooling test en60068-2-1 dry heat en60068-2-2 damp heat en60068-2-30 shock and vibration test iec/en61373 physical specifications casing material black flame-retardant and heat-resistant plastic (ul94-v0) weight URF1D24QB-50W urf1d24qb-75w urf1d24qb-100w 46g (typ.) URF1D24QB-50Wh urf1d24qb-75wh urf1d24qb-100wh 76g (typ.) cooling method natural convection or forced convection
dc/dc converte r urf1d_qb series 201 4 .12.09-a/1 page 3 of 8 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation emc specifications item test conditions test procedure emi conducted disturbance 150khz-30mhz class b (see fig. 2 for recommended circuit) cispr22/en55022 radiated emission 30mhz-1ghz class b (see fig. 2 for recommended circuit) cispr22/en55022 ems electrostatic discharge contact 6kv, air 8kv perf.criteria b iec/en61000-4-2 gb/t17626.2 radiation immunity 10v/m perf.criteria a iec/en61000-4-3 gb/t17626.3 conducted disturbance immunity 10vr.m.s perf.criteria a iec/en61000-4-6 gb/t17626.6 eft 2kv(5khz, 100khz)(see fig. 2 for recommended circuit) perf.criteria b iec/en61000-4-4 gb/t17626.4 surge immunity 2kv(1.2 s /50 s 2 ? ), (see fig. 2 for recommended circuit) 4kv(1.2 s /50 s 12 ? ), (see fig. 2 for recommended circuit) perf.criteria b iec/en61000-4-5 gb/t17626.5 1.8kv (5/50 s 5 ? ) , (see fig. 2 for recommended circuit) perf.criteria b en50155 immunities of short interruption 100%-0%, 10ms (see fig. 2 for recommended circuit) perf.criteria b en50155 efficiency curves urf1d24qb-100w(h) urf1d24qb-75w(h) URF1D24QB-50W(h) 80 85 90 95 100 66 70 80 90 100 110 120 130 140 150 160 efficiency(%) input voltage(v) efficiency vs input voltage (full load) urf1d24qb-100w(h) urf1d24qb-75w(h) URF1D24QB-50W(h) 60 65 70 75 80 85 90 95 100 5102030 4 05060708090100 efficiency(%) output current percentage(%) efficiency vs output load( vin=110v ) thermal curves 0 20 40 60 80 100 120 -40 0 10 20 30 40 50 60 70 80 90 100 output power(w) a mbient temperature( ) urf1d24qb-100w thermal curves (vin=110v) no heatsink natural convection no heatsink 200lfm no heatsink 400lfm no heatsink 1000lfm 0 20 40 60 80 100 120 -40 0 10 20 30 40 50 60 70 80 90 100 output power(w) ambient temperature( ) urf1d24qb-100wh thermal curves (vin=110v) heatsink natural convection heatsink 200lfm heatsink 400lfm heatsink 1000lfm
dc/dc converte r urf1d_qb series 201 4 .12.09-a/1 page 4 of 8 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation 0 10 20 30 40 50 60 70 80 -40 0 10 20 30 40 50 60 70 80 90 100 output power(w) ambient temperature( ) urf1d24qb-75w thermal curves (vin=110v) no heatsink natural convection no heatsink 200lfm no heatsink 400lfm no heatsink 1000lfm 0 10 20 30 40 50 60 70 80 -40 0 10 20 30 40 50 60 70 80 90 100 output power(w) ambient temperature( ) urf1d24qb-75wh thermal curves (vin=110v) heatsink natural convection heatsink 200lfm heatsink 400lfm heatsink 1000lfm 0 10 20 30 40 50 60 -40 0 10 20 30 40 50 60 70 80 90 100 output power(w) ambient temperature( ) URF1D24QB-50W thermal curves (vin=110v) no heatsink natural convection no heatsink 200lfm no heatsink 400lfm no heatsink 1000lfm 0 10 20 30 40 50 60 -40 0 10 20 30 40 50 60 70 80 90 100 output power(w) ambient temperature( ) URF1D24QB-50Wh thermal curves (vin=110v) heatsink natural convection heatsink 200lfm heatsink 400lfm heatsink 1000lfm sense of application and precautions 1. w hen remote sense is not used 0v +vo sens e+ trim sens e- + c the lead as short as possible load short at pin root notes 1) when remote sense is not used, make sure + vo and sense + are shorted, and that 0v and sense- are shorted as well; 2) keep t he patterns between + v o and sense + and 0v and sense- as short as possible. a void a looping pattern. i f noise enters t he loop, t he operation of t he power module will become unstable. 2. w hen remote sense is used 0v +vo sens e+ trim sens e- a s far as possibl e using t he twisted pair load + c notes: 1. using remote sense with long wires may cause output voltage to be come unstable. consult us if long sensing wiring is necessary. 2. sense patterns or wires should be as short as possible. if wires are used, use either twisted-pair or shielded wires. 3. please use w ide pcb t race o r a t hic k w ires between t he power supply module and t he load, t he line voltage drop should be kept less t han 0.3v. make sure the power supply module's output voltage remains within the specified range. 4. the impedance of wires may cause the output the voltage oscillation o r have a greater ripple, please do adequate assessments before using.
dc/dc converte r urf1d_qb series 201 4 .12.09-a/1 page 5 of 8 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation design reference 1. ripple & noise all the urf1d_qb-100w series have been tested according to the following recommended test circuit before leaving the factory (see figur e 1). 0v +vo 25.4mm 51mm c2 c3 c1 2.54mm 6.4mm sens e+ tri m sens e- -vin ctrl +vin c0 dc input 33 u f 1u f 10 u f 22 0u f copper shee t connect oscillograph probe (20mhz bandwidth) load fig. 1 2. typical application if don?t use our company?s emc models, please make sure the input of at least 33uf electrolytic capacitor in parallel to suppress the input terminal may produce surge voltage. 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. dc dc +vin -vin +v o 0v cin cout output voltage cout( f) cin( f) 24v 220 100 3. emc solution-module recommended circuit +vin -vin fc-xxxd dc/dc converter +vo 0v +vo -vo fuse + c0 c1 c2 fig. 2 c0 82uf/200v electrolytic capacitor c1, c2 2200pf/400vac capacitor fc-xxxd recommended to use mornsun?s fc-cx3d fuse due to the difference of the power module input current, the fuse of the recommended values, please refer to the technicalmanualforthepowermodule. 4. these applications are not supported for the follow models +vin -vin fc-xxxd dc/dc converter +vo 0v +vo -vo fuse +vin -vin +vin -vin fc-xxxd dc/dc converter +vo 0v +vo -vo fuse +vin -vin -vin +vin -vin fc-xxxd dc/dc converter +vo 0v +vo -vo fuse +vin c -vin capacitive parameter
dc/dc converte r urf1d_qb series 201 4 .12.09-a/1 page 6 of 8 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation 5. thermal design the maximum operating temperature of base- plate tb is 100 ,aslongastheuser'sthermalsystemkeepstb<100 , the converter can deliver its full rated power. a power derating curve can be calculated for any heatsink that is attached to the base-plate of the converter. it is only necessary to determine the thermal resistance , rth(b-a), of the chosen heatsink between the base-plate and the ambient air for a given airflow rate. this information is usually available from the heatsink vendor. the following formula can the be used to determine the maximum power the converter can dissipate for a give n thermal condition if its base-plate is to be no higher than 100 oc. a - b a max th 100 r t p diss ? = (t a is ambient temperature) the maximum load operating power of power supply module at a certain ambient temperature can be calculated by the power dissipation, formula is as follows: ) 1 1 ( max max ? = diss p po ( value for r1, r2, r3, and v ref refer to the above table 1. r t : resistance of trim. a: user-defined parameter, no actual meanings. vo?: the trim up/down voltage. table 1 vo parameter 24(vdc) r1(k ? )24.87 r2(k ? )2.87 r3(k ? )20 vref(v) 2.5 7. the product does not support in parallel and hot-plug use 8. for more information please find the application notes on www.mornsun-power.com
dc/dc converte r urf1d_qb series 201 4 .12.09-a/1 page 7 of 8 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation dimensions and recommended layout (without heatsink) dimensions and recommended layout(with heatsink)
dc/dc converte r urf1d_qb series 201 4 .12.09-a/1 page 8 of 8 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation note 1. packing information please refer to 'product packing informatio n'. packing bag number:58010113(without heatsink), 58010112(with heatsink); 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 o f t he product may exceed t he 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 t he customer t ests emc, suggest t o t ake our emc module fc-cx3d. if t he customer needs t o meet t he performance aspects of t he surge, and don?t take our emc module fc-cx3d, please make sure the surge residual voltage less than 180v, to ensure the reliability of the product; 5. recommends that customers plus silicone film or thermal grease between the module and the heatsink, in order to ensure good heat dissipation; 6. unless otherwise specified, data in this datasheet should be tested under the conditions of ta=25 , humidity<75% when inputting nominal voltage and outputting rated load; 7. all index testing methods in this datasheet are based on our company?s corporate standards; 8. the performance indexes of the product models listed in this d atasheet 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; 9. we can provide product customization service; 10.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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