the copyright and authority for the interpretation of the products are reserved by mornsun wra_s-3wr2 & wrb_s-3wr2 2013.07.22-a/3 page 1 of 7 wra_s - 3wr2 & wrb_s - 3wr2 series 3w wide input, isolated & regulated dual/single output dc-dc converter patent protected rohs part number system wrb1205s-3wr2 product series input voltage output voltage package style rated power features ultra-miniature sip package 2:1 wide input voltage range temperature range: -40 c ~ +85 c 1.5kvdc isolation short circuit protection(automatic recovery) external on/off control high power density application the wra_s-3wr2 & wrb_s- 3wr2 series are specially designed for applications where a wide range input voltage power supplies are isolated from the input power supply in a distributed power supply system on a circuit board. for these dc-dc converters, y ou can reduce the design point of failure and save the development of micro power supply s manpower, material and time costs, also better ensure product quality stability, protect safety and reliability of the end of products. these products apply to where: 1) input voltage range 2:1; 2) 1.5kvdc input and output isolation; 3) regulated and low ripple noise is required. such as: industrial control, tele-communications etc. selection guide input voltage(vdc) output current (ma) input current (ma)(typ.) model nominal (range) max. output voltage (vdc) max. min. @max. load @no load reflected ripple current (ma,typ.) max. capacitive load ( f) efficiency (%, typ.) @max. load wra0505s-3wr2 5 250 13 676 1000 74 wra0512s-3wr2 12 104 5 650 470 77 wra0515s-3wr2 15 83 4 650 330 77 wrb0505s-3wr2 5 500 25 685 2200 73 wrb0509s-3wr2 9 278 14 676 1000 74 wrb0512s-3wr2 12 208 10 650 680 77 wrb0515s-3wr2 5 (4.5-9) 11 15 167 8 676 40 30 470 74 wra1205s-3wr2 5 300 15 321 1000 78 wra1212s-3wr2 12 125 6 317 470 79 wra1215s-3wr2 15 100 5 313 330 80 wrb1203s-3wr2 3.3 758 38 278 2700 75 wrb1205s-3wr2 5 600 30 329 2200 76 wrb1209s-3wr2 9 333 17 317 1000 79 wrb1212s-3wr2 12 250 13 305 680 82 wrb1215s-3wr2 15 200 10 302 470 83 wrb1224s-3wr2 12 (9-18) 20 24 125 6 309 20 30 330 81 wra2405s-3wr2 5 300 15 158 1000 79 wra2409s-3wr2 9 167 8 155 680 81 wra2412s-3wr2 12 125 6 151 470 83 wra2415s-3wr2 15 100 5 151 330 83 wrb2403s-3wr2 3.3 758 38 141 2700 74 wrb2405s-3wr2 5 600 30 155 2200 81 wrb2409s-3wr2 9 333 17 151 1000 83 wrb2412s-3wr2 12 250 13 151 680 83 wrb2415s-3wr2 15 200 10 151 470 83 wrb2424s-3wr2 24 (18-36) 40 24 125 6 151 7 110 330 83
the copyright and authority for the interpretation of the products are reserved by mornsun wra_s-3wr2 & wrb_s-3wr2 2013.07.22-a/3 page 2 of 7 wra4805s-3wr2 5 300 15 79 1000 79 wra4812s-3wr2 12 125 6 76 470 82 wra4815s-3wr2 15 100 5 76 330 82 wrb4803s-3wr2 3.3 758 38 70 2700 75 wrb4805s-3wr2 5 600 30 82 2200 76 wrb4812s-3wr2 12 250 13 78 680 80 wrb4815s-3wr2 15 200 10 75 470 84 wrb4824s-3wr2 48 (36-75) 80 24 125 6 76 7 45 330 82 note: . absolute maximum rating without damage on the converter, but it isn't recommended; . for dual output converter, the given value is the same for each output. input specifications item test conditions min. typ. max. unit 5v input -0.7 -- 12 12v input -0.7 -- 25 24v input -0.7 -- 50 input surge voltage (1sec. max.) 48v input -0.7 -- 100 5v input 3.5 4 4.5 12v input 4.5 8 9 24v input 11 16 18 start-up voltage 48v input 24 33 36 vdc input filter c filter models on ctrl open or be insulated ctrl* models off connect high level voltage, and ensure the current into ctrl to be 5-10ma note: *please refer to "design considerations" as the direction for use of ctrl. output specifications item test conditions min. typ. max. unit output voltage accuracy 5% to 100% load -- 1 3 no - load output voltage accuracy ?? 1.5 5 output voltage balance dual output, balanced loads -- 0.5 1 line regulation full load, input voltage from low to high -- 0.2 0.5 load regulation 5% to 100% load -- 0.6 1 % transient recovery time -- 0.5 3 ms transient response deviation 25% load step change -- 2.5 5 % temperature coefficient 100% load -- 0.02 0.03 %/ c ripple -- 30 45 noise 20mhz bandwidth -- 35 75 mvp-p output short circuit protection continuous, automatic recovery note: . the max. no-load output voltage accuracy for wrb1203s-3wr2 and wrb4803s-3wr2 is 8%; . ripple and noise tested with "parallel cable" method. see detailed operation instructions at dc-dc application notes; the max. output ripple for wra2405s-3wr2 is 65mvp-p. common specifications item test conditions min. typ. max. unit isolation voltage tested for 1 minute, leakage current less than 1 ma 1500 -- -- vdc isolation resistance test at 500vdc 1000 -- -- m isolation capacitance input/output,100khz/0.1v -- 120 -- pf switching frequency(pfm mode) 100% load, nominal input voltage -- 250 -- khz mtbf mil-hdbk-217f@25 1000 -- -- k hours case material plastic ul94-v0 weight -- 4.9 -- g environmental specifications item test conditions min. typ. max. unit storage humidity non condensing -- -- 95 % operating temperature power derating (above85 ,see figure 5) -40 -- 85 c
the copyright and authority for the interpretation of the products are reserved by mornsun wra_s-3wr2 & wrb_s-3wr2 2013.07.22-a/3 page 3 of 7 storage temperature -55 -- 125 temp. rise at full load ta=25 c -- 25 -- lead temperature 1.5mm from case for 10 seconds -- -- 300 cooling free air convection emc specifications ce cispr22/en55022 class b recommended circuit refer to figure1- or figure 3 emi re cispr22/en55022 class b recommended circuit refer to figure1- or figure 3 esd iec/en61000-4-2 contact 4kv perf. criteria b rs iec/en61000-4-3 10v/m perf. criteria a iec/en61000-4-4 2kv recommended circuit refer to figure1- perf. criteria b eft iec/en61000-4-4 4kv recommended circuit refer to figure 3 perf. criteria b surge iec/en61000-4-5 2kv recommended circuit refer to figure1- or figure 3 perf. criteria b cs iec/en61000-4-6 3 vr.m.s perf. criteria a ems voltage dips, short and interruptions immunity iec/en61000-4-29 0%-70% perf. criteria b emc recommended circuit ldm2 c0 tvs ldm1 mov fuse c1 + vin gnd +vo -vo (0v) eut load c2 cy ctrl cd d1 r ctrl vin gnd (figure1) recommended external circuit parameters: model vin 5v vin:12v vin:24v vin:48v fuse choose according to practical input current mov -- -- s14k35 s14k60 ldm1 -- -- 56 h 56 h tvs smcj13a smcj28a smcj48a smcj90a c0 680 f/16v 680 f/25v 330 f/50v 330 f/100v c1 4.7 f/50v 4.7 f/100v ldm2 12 h c2 4.7 f/50v 4.7 f/100v cy 1nf/2kv d1 rb160m-60/1a r follows: 300 - 0 . 1 - - c d c i v v r = cd 47nf/100v note: 1. in figure 1, part is ems recommended external circuit, part is emi recommended external circuit. choose according to requirements; 2. v c is the voltage to gnd from ctrl, v d is the forward conduction voltage drop of d1,i c is the current through ctrl pin which is normally 5-10ma, the external circuit of ctrl is as shown in figure1- ; 3. if there is no recommended parameters, the model no require the external component. emc recommended circuit pcb layout dual single (figure 2) note: the pad space between input and output gnd (cy) must 2mm.
the copyright and authority for the interpretation of the products are reserved by mornsun wra_s-3wr2 & wrb_s-3wr2 2013.07.22-a/3 page 4 of 7 emc module application circuit eut gnd ctrl -vo +vo -vin +vin ft-a/bx1d load -vo (0v) +vo vin cd d1 r ctrl c + -vin +vin fuse ft-a/bx1d is mornsun s eft suppresser for nominal voltage<48v, c 330uf/50v for nominal voltage =48v, c 330uf/100v (figure 3) emc module recommended circuit pcb layout dual single (figure 4) emi test waveform (recommended circuit figure1- ) wra2415s-3wr2 ce ( class b, positive line ) wra2415s-3wr2 ce ( class b, negative line ) wrb1205s-3wr2 ce ( class b, positive line ) wrb1205s-3wr2 ce ( class b, negative line ) product typical performance curve tolerance envelope graph 120 100 80 60 40 20 0 -40 0 40 85 105120 o u t p u t p o w e r p e r c e n t ( % ) output current percent(%) ambient temp.() temperature derating graph safe operating area (figure 5)
the copyright and authority for the interpretation of the products are reserved by mornsun wra_s-3wr2 & wrb_s-3wr2 2013.07.22-a/3 page 5 of 7 efficiency vs input voltage curve (full load) 50 55 60 65 70 75 80 85 90 95 100 18202224262830323436 input voltage(v) efficiency(%) wra2415s-3wr2 efficiency vs output load curve (vin=vin-nominal) 0 10 20 30 40 50 60 70 80 90 100 102030405060708090100 total output current (%) efficiency(%) wra2415s-3wr2 efficiency vs input voltage curve (full load) 50 55 60 65 70 75 80 85 90 95 100 9101112131415161718 input voltage(v) efficiency(%) wrb1205s-3wr2 efficiency vs output load curve (vin=vin-nominal) 0 10 20 30 40 50 60 70 80 90 100 102030405060708090100 total output current (%) efficiency(%) wrb1205s-3wr2 outline dimensions,recommended footprint & packaging
the copyright and authority for the interpretation of the products are reserved by mornsun wra_s-3wr2 & wrb_s-3wr2 2013.07.22-a/3 page 6 of 7 test configurations input reflected-ripple current test setup input reflected-ripple current is measured with an inductor lin and capacitor cin to simulate the source impedance. dc cin lin dc load oscilloscope current probe lin(4.7 h) cin(220 f, esr < 1.0 at 100 khz) design considerations 1) requirement on output load to ensure this module can operate efficiently and reliably, during operation, the minimum output load could not be less than 5% of the full load, otherwise output ripple maybe increase dramatically. if the actual output power is very small, please connect a resistor with proper resistance at the output end in parallel to increase the load, suppose to use the resistance of 5% rated power, or use our compan y s products with a lower rated output power. 2) recommended circuit all the wra_s-3wr2 & wrb_s-3wr2 series have been tested according to the following recommended test circuit before leaving the factory (see figure 6). if you want to further decrease the input/output ripple, you can increase a capacitance-values properly or choose capacitors with low esr. however, the capacitance of the output filter capacitor must be proper. if the capacitance is too big, a startup problem might arise. for every channel of output, provided the safe and reliable operation is ensured, the greatest capacitance of its filter capacitor must be less than the max. capacitive load. general: cin1: 5v&12v 100 f 24v&48v 10 f cin2: 5v&12v 47 f 24v&48v 1 f lin: 4.7 h~12 h cs: 10 f~22 f cout: 100 f(typ.) lout: 2.2 h~10 h cd: 47nf/100v single output dual output +vo 0v cout 6 7 8 cs cin1 vin gnd 2 1 3 vc r lin ic d1 cd cin2 +vo 0v cout 6 8 7 cout lout lout -vo cin1 vin gnd 2 1 lin 3 vc r ic d1 cd cin2 (figure 6) 3) ctrl terminal when open or high impedance, the converter works well; when this pin is high , the converter shut down. it should be note that the input current should be between 5-10ma, exceeding the maximum 20ma will cause permanent damage to the converter. the value of r can be derived as follows: 300 - 0 . 1 - - c d c i v v r = for detailed parameter, please refer to "emc recommended circuit". 4) input current when it is used in unregulated power supply, be sure that the fluctua ting range of the power supply and the rippled voltage do not exceed the module standard. input current of power supply should afford the flash startup average current of this kind of dc/dc module (figure 7). general: vin:5v iave =1110ma vin:12v iave =640ma vin:24v iave =325ma vin:48v iave =160ma i n p u t c u r r e n t ( a ) input voltage (v) input voltage range iave (figure 7) 5) it is not recommended to increase the output power capability by connecting two or more converters in parallel. the product is not hot-swappable
the copyright and authority for the interpretation of the products are reserved by mornsun wra_s-3wr2 & wrb_s-3wr2 2013.07.22-a/3 page 7 of 7 note: 1. min. load shouldn't be less than 5%, otherwise ripple maybe increased dramatically. if the product operates under min. load, it may not be guaranteed to meet all specifications listed. operation under minimum load will not damage the converter. 2. recommended dual output models unbalanced load is ? 5%, if the product operates > 5%, it may not be guaranteed to meet all specifications listed. please contact our technical support for more details. 3. max. capacitive load is tested at input voltage range and full load. 4. all specifications measured at ta=25 c, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 5. in this datasheet, all test methods are based on our corporate standards. 6. all characteristics are for listed models, and non-standard models may perform differently. please contact our technical support for more details. 7. please contact our technical support for any specific requirement. 8. specifications of this product are subject to changes without prior notice. 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 e-mail: info@mornsun.cn http://www.mornsun-power.com
|
