dc/dc converter wra_s-1wr2 & wrb_s-1wr2 series 201 5 . 08.26 - a/4 page 1 of 6 m ornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation 1w, wide input voltage, isolated & regulated output dc/dc converter patent p rotection rohs features ? ultra c ompact sip package ? wide range of input voltage ( 2: 1) ? operating temperature range: -40 to +85 ? isolation voltage : 1 . 5 k vdc ? low ripple & noise ? short circuit protection (self-recovery) ? remote on/off wra_s-1wr2 & wrb_s-1wr2 series are isolated 1w dc-dc products with 2:1 input voltage and conventional voltage output. the product has a relatively compact sip-8 plastic package, and features high efficiency, operating temperature of -40 ~+85 , remote control , and continuous short-circuit protection. the smaller size and fine cost design make the converter an ideal solution in communication, instruments, and industrial electronics applications. selection guide part no. input v oltage (vdc) output ripple & noise ( mvp-p ) efficiency (%, min./typ . ) @ f ull l oad max. c apacitive l oad ( f) nominal (range) max. output v oltage(vdc) output c urrent (ma)(max./min.) wra0505s-1wr2 5 (4.5-9) 11 5 100/ 5 40/75 71/ 73 1000 wra0512s-1wr2 12 42/ 2 74/ 76 470 wra0515s-1wr2 15 33/ 2 73/ 75 330 wrb050 3 s-1wr2 3.3 303/15 69/71 1800 WRB0505S-1WR2 5 200/10 70/ 72 2200 wrb0512s-1wr2 12 83/4 74/ 76 1000 wrb0515s-1wr2 15 67/3 73/ 75 680 wrb05 24 s-1wr2 24 42/2 71/73 470 wra1205s-1wr2 12 (9-18) 20 5 100/ 5 76/ 78 1000 wra1212s-1wr2 12 42/ 2 79/ 81 470 wra1215s-1wr2 15 33/ 2 76/78 330 wrb120 3 s-1wr2 3.3 303/15 73/75 2700 wrb1205s-1wr2 5 200/10 75/ 77 2200 wrb1209s-1wr2 9 111/6 77/ 79 1800 wrb1212s-1wr2 12 83/4 70/100 77/79 1000 wrb1215s-1wr2 15 67/3 78/ 80 680 wrb12 24 s-1wr2 24 42/2 100/150 74/76 470 wra2405s-1wr2 24 (18-36) 40 5 100/ 5 40/75 77/79 1000 wra240 9 s-1wr2 9 56 / 3 77/79 680 wra2412s-1wr2 12 42/ 2 77/79 470 wra2415s-1wr2 15 33/ 2 77/79 330 wrb2403s-1wr2 3.3 303/15 73/ 75 2700 wrb2405s-1wr2 5 200/10 75/ 77 2200 wrb2412s-1wr2 12 83/4 78/80 1000 wrb2415s-1wr2 15 67/3 70/100 76/78 680 wrb2424s-1wr2 24 42/2 100/150 75/ 77 470 wra4805s-1wr2 48 (36-75) 80 5 100/ 5 40/75 74/ 76 1000 wra4812s-1wr2 12 42/ 2 76/78 470 wra4815s-1wr2 15 33/ 2 78/ 80 330 wrb480 3 s-1wr2 3.3 303/15 73/75 2700 wrb4805s-1wr2 5 200/10 74/ 76 2200 wrb4812s-1wr2 12 83/4 78/80 1000 wrb4815s-1wr2 15 67/3 77/79 680 notes: exceeding the maximum input voltage may cause permanent damage ; for the dual output modules, the capacitive loads of positive and negative outputs are the same.
dc/dc converter wra_s-1wr2 & wrb_s-1wr2 series 201 5 . 08.26 - a/4 page 2 of 6 m ornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation input s pecifications item operating c onditions min. typ. max. unit in put c urrent (full load / no-load) 5v dc input -- 281/40 290/60 ma 12v dc input -- 1 11/15 114/30 24v dc input -- 5 5/ 6 57/10 ma 48v dc input -- 27 / 4 28/6 reflected r ipple c urrent 5v dc input -- 30 -- 12v dc input -- 40 -- 24v dc input -- 55 -- 48v dc input -- 45 -- inpu t i mpulse v oltage (1sec. max.) 5v dc input -0.7 -- 12 vdc 12v dc input -0.7 -- 25 24v dc input -0.7 -- 50 48v dc input -0.7 -- 100 starting v oltage 5v dc input -- -- 4.5 12v dc input -- -- 9 24v dc input -- -- 18 48v dc input -- -- 36 input f ilter filter capacitor hot p lug unavailable ctrl* module turn-on the ctrl end is suspended or of high resistance module turn-off connect with high level (relative to the input grounding) to make the 5-10ma current flows into the ctrl end. note: * for use of ctrl, please refer to the design reference in this manual. output s pecifications item operating c onditions min. typ. max. unit output v oltage a ccuracy 5%-100% load input voltage range 3.3v/5v output -- 2 5 % others -- 1 3 no-load o utput v oltage a ccuracy input voltage range -- 1.5 5 balance o f o utput v oltage dual output, balanced load -- 0.3 0.5 line r egulation full load, the input voltage is from low to high -- 0.2 0.5 load r egulation 5%-100% load -- 0.4 0.75 transient r ecovery t ime 25% load step change -- 0.5 2 ms transient r esponse d eviation -- 2.5 5 % temperature c oefficient full load -- 0.02 0.03 %/ s hort c ircuit p rotection con tinuous , self-recovery note: * ripple and noise are measured by parallel cable method, please see dc-dc converter application notes for specific operation. general s pecifications item operating c onditions min. typ. max. unit isolation v oltage input-output, with the test time of 1 minute and the leak current lower than 1ma 1500 -- -- vdc isolation r esistance input-output, i so lation voltage 500vdc 1000 -- -- m isolation c apacitance input-output, 100khz/0.1v -- 120 -- pf operating t emperature derating if the temperature 85 , (see fig. 1) -40 -- 85 storage t emperature -55 -- 125 pin w elding r esistance t emperature welding spot is 1.5mm away from the casing, 10 seconds -- -- 300 storage h umidity non-condensing -- -- 95 % rh switching f requency (pfm m ode) full load, nominal input voltage -- 200 -- khz mtbf mil-hdbk-217f@25 1000 -- -- k hours
dc/dc converter wra_s-1wr2 & wrb_s-1wr2 series 201 5 . 08.26 - a/4 page 3 of 6 m ornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation physical s pecifications casing m aterial black flame-retardant and heat-resistant plastic (ul94-v0) d imension 22.00*9.50*12.00 mm weight 4.9 0 g (typ.) c ooling method free convection emc s pecifications 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 r s 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 voltage dips, short interruptions and voltage variations immunity iec/en61000-4-29 0%-70% perf. criteria b product c haracteristic c urve output power percentage(%) environment temperature.( ) temperature derating curve 120 100 80 60 40 20 0 -40 0 40 85 safe ope ration a rea 60 fig 1
dc/dc converter wra_s-1wr2 & wrb_s-1wr2 series 201 5 . 08.26 - a/4 page 4 of 6 m ornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation design r eference 1. recommended c ircuit all the dc/dc converters of this series are tested according to the recommended circuit (see fig. 2) before delivery. if a further decrease of the input and output ripple is required, properly increase the input & output of additional capacitors cin1, cin2, cs and cout; or select capacitors of low equivalent impedance like series capacitor, etc. cs is used to reduce ripple . no need to add cs, if ripple meet s the demand . appropriate filter capacitance shall be chosen, start-up problems may be caused if the capacitance is too large . for each output circuit , under the condition of safe and reliable operation , the max. capacity of its filter capacitor should be lower than the max. capacitive load. single 1 v in g n d c d c i n 1 c i n 2 l in 2 6 8 7 + vo 0 v c s 3 r d 1 v c l c c o u t dual +vo 0v cout 6 8 7 cout lout lout -vo cin1 vin gnd 2 1 lin 3 vc r ic d1 cd cin2 fig. 2 vin 5 vdc &12 vdc 24v dc &48v dc cin1 100 f 10 f cin2 47 f 1 f lin 4.7 h~12 h cs 10 f~22 f cout 100 f(typ.) l out 2.2 h~10 h cd 47nf/100v 2. emc s olution- r ecommended c ircuit ldm1 c0 mov fuse c1 + vin gnd +vo -vo (0v) dc/dc load c2 cy ctrl cd d1 r ctrl vin gnd 1 c3 fig. 3 parameter description: model vin:5v dc vin:12v dc vin:24v dc vin:48v dc fuse slow blown fuses according to the actual input current selections of the clients mov -- s14k25 s 14k 35 s 14k 60 c0 10 0 0 f/16v 1000 f/25v 330 f/50v 330 f/100v c1 4.7 f/50v 4.7 f/100v ldm 1 12 h c2 4.7 f/50v 4.7 f/100v c 3 r efer to the cout in fig.2 cy 1 1nf/ 2 kv d1 rb160m-60/1a r in accordance with the formula: 300 - 0 . 1 - - c d c i v v r = cd 47nf/100v notes: part in fig. 3 is used for ems test while part is used for emi filtering; and parts and may be selected based on needs. v c is the voltage of the ctrl end relative to the gnd of the input grounding; v d is the positive-going conduction pressure drop of d1; i c is the current flows into the ctrl end and its value is generally 5-10ma, see fig. 3- for the peripheral circuit of ctrl end; if there is no recommended parameters, no external component is required. emc solution-recommended circuit pcb layout fig. 4 note: the min. distance of the bonding pads between input grounding and output grounding shall be 2mm.
dc/dc converter wra_s-1wr2 & wrb_s-1wr2 series 201 5 . 08.26 - a/4 page 5 of 6 m ornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation 3. ctrl e nd the modules are of normal output when the ctrl end is suspended or of high resistance; the modules turn off when connecting with high level (relative to the input grounding); notice that the current flows into the pin shall be 5 - 10ma, the modules will be permanently damaged if the current exceeds its max. value (20ma in general). 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 solution-recommended circuit in this manual. 4. input current when the electricity is provided by the unstable power supply, please make sure that the range of the output voltage fluctuation and the ripple voltage of the power supply do not exceed the indicators of the modules. input current of power supply should afford the flash startup current of this kind of dc/dc module(see fig. 5 ). generally: vin= 5v series iave =450ma vin=12v series lave =220ma vin=24v series lave =110ma vin=48v series lave =55ma i n p u t c u r r e n t ( a ) input voltage (v) input voltage scope iave fig. 5 5. output l oad r equirements when using, the minimum load of the module output should not be less than 5% of the nominal load.in order to meet the performance parameters of this datasheet, please connect a 5% dummy load in parallel at the output end, the dummy load is generally a resistor, please note that the resistor needs to be used in derating . 6. for more information please find dc-dc converter application notes on www.mornsun-power.com dimensions and recommended layout
dc/dc converter wra_s-1wr2 & wrb_s-1wr2 series 201 5 . 08.26 - a/4 page 6 of 6 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 . packing bag number: 582 10004; 2. recommend to use module with more than 5% load, if not, the ripple of the product may exceeds the specification, but does not affect the reliability of the product ; 3. the recommended unbalance degree of the dual output module load is 5%; if the degree exceeds 5%, than the product performance cannot be guaranteed to comply with all parameters in the datasheet. please contact our technicians directly for specific information ; 4. the maximum capacitive load offered were tested at nominal input voltage and full load; 5. unless otherwise specified, parameters in this datasheet were measured under the conditions of ta=25 , humidity<75% with nominal input voltage and rated output load; 6. all index testing methods in this datasheet are based on company s corporate standards; 7. the performance parameters of the product models listed in this manual are as above, but some parameters of non-standard model products may exceed the requirements mentioned above. p lease contact our technicians directly for specific information; 8. we can provide product customization service; 9. specifications are subject to change without prior notice. m ornsun 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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