the copyright and authority for the interpretation of the products are reserved by mornsun vra_d-5w&vrb_d-5w c/1-2012 page 1 of 5 features efficienc y up to 85% 1.5kvdc isolation operatin g temperature: -40c ~ +85c metal shieldin g packa g e industry standard pinout good performance unde r both hi g h and low temperature, meet industrial technical requirements applications the vra_d-5w & vrb_d-5w series are designed for application where isolated output is required from a distributed power system. these products apply to where: 1) input voltage range: 2:1; 2 ) 1.5kv input and output isolation; 3) regulated and low ripple noise is required. vra_d-5w & vrb_d-5w series 5w, 2:1 wide input, isolated & regulated dual/single output dc-dc converter patent protection rohs part number system vra2405d-5w rated power package style output voltage input voltage product series selection guide model number input voltage(vdc) output voltage (vdc) output current (ma) input current (ma)(typ.) reflected ripple current (ma,typ.) max. capacitive load # (f) efficiency (%, typ.) @max. load nominal (range) max* max. min. @max. load @no load vra1205d-5w 12 (9-18) 20 5 500 50 521 13 50 1430 77 vra1209d-5w 9 278 27 520 -- -- 80 vra1212d-5w 12 210 21 504 15 200 82 vra1215d-5w 15 166 16 511 19 100 80 vra1224d-5w 24 105 10 526 32 47 81 vrb1205d-5w 5 1000 100 509 6 8570 78 vrb1209d-5w 9 556 55 494 15 470 80 vrb1212d-5w 12 420 42 500 17 288 82 vrb1215d-5w 15 330 33 247 17 241 82 vrb1224d-5w 24 200 20 471 23 68 83 vra2405d-5w 24 (18-36) 40 5 500 50 252 4 727 80 vra2409d-5w 9 278 27 242 8 503 82 vra2412d-5w 12 210 21 245 10 330 83 vra2415d-5w 15 166 16 246 9 247 83 vra2424d-5w 24 105 10 248 12 68 84 vrb2405d-5w 5 1000 100 258 6 2000 80 vrb2409d-5w 9 556 55 241 6 388 82 vrb2412d-5w 12 420 42 245 7 300 84 vrb2415d-5w 15 330 33 247 8 538 84 VRB2424D-5W 24 200 20 230 11 68 85 vra4805d-5w 48 (36-75) 80 5 500 50 125 -- 150 -- 82 vra4809d-5w 9 278 27 127 -- -- 81 vra4812d-5w 12 210 21 121 5 160 85 vra4815d-5w 15 166 1 6 123 5 159 85 vra4824d-5w 24 105 10 120 -- -- 86 vrb4805d-5w 5 1000 100 126 2 1780 82 vrb4809d-5w 9 556 55 127 -- -- 81 vrb4812d-5w 12 420 42 126 10 617 85 vrb4815d-5w 15 330 33 122 -- -- 85 vrb4824d-5w 24 200 20 121 -- -- 86 note: 1. models listed with strike-through text have been officially discontinued. 2. *input voltage can?t exceed this value, or will cause the permanent damage. 3. # for each output.
the copyright and authority for the interpretation of the products are reserved by mornsun vra_d-5w&vrb_d-5w c/1-2012 page 2 of 5 input specifications item test conditions min. typ. max. unit input surge voltage (1000 ms) 12vdc input models -0.7 -- 25 vdc 24vdc input models -0.7 -- 50 48vdc input models -0.7 -- 100 start-up voltage 12vdc input models -- -- 9 24vdc input models -- -- 18 48vdc input models -- -- 36 under voltage shutdown 12vdc input models -- -- 9 24vdc input models -- -- 18 48vdc input models -- -- 36 start-up time nominal input& constant resistance load -- 300 -- ms short circuit input power -- 0.5 -- w no-load power consumption -- 500 -- mw input filter l filter output specifications item test conditions min. typ. max. unit output power 0.5 -- 5 w positive voltage accuracy refer to recommended circuit -- 1 3 % negative voltage accuracy -- 3 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 10% to 100% load -- 0.5 2 transient recovery time 25%~ 50%~25% load or 50%~75%~50% load step change -- 300 500 s transient response deviation -- 3 5 % temperature drift 100% full load -- 0.02 -- %/c ripple* 20mhz bandwidth -- 30 50 mvp-p noise* -- 100 150 over current protection full input voltage 120 -- -- % short circuit protection continuous, automatic recovery note: 1.dual output models unbalanced load: 5%. 2.*test ripple and noise by ?parallel cable? method. see detailed operatio n instructions at testing of power c onverter section, application notes. common specifications item test conditions min. typ. max. unit isolation voltage tested for 1 minute and leakage current less than 1 ma 1500 -- -- vdc isolation resistance test at 500vdc 500 -- -- m ? isolation capacitance input/output,100khz/0.1v -- 1000 -- pf switching frequency full load, nominal input -- 300 -- khz mtbf mil-hdbk-217f@25 1000 -- -- k hours case material aluminous alloy weight -- 15 -- g environmental specifications item test conditions min. typ. max. unit storage humidity non condensing 5 -- 95 % operating temperature power derating (above 71 ) -40 -- 85 c storage temperature -55 -- 125 temp. rise allowed at full load operating temperature curve range -- 75 -- lead temperature 1.5mm from case for 10 seconds -- -- 300 cooling free air convection
the copyright and authority for the interpretation of the products are reserved by mornsun vra_d-5w&vrb_d-5w c/1-2012 page 3 of 5 emc specifications emi ce cispr22/en55022 class a external circuit refer to figure1- ? ems esd iec/en61000-4-2 contact 4kv perf. criteria b eft iec/en61000-4-4 2kv perf. criteria b external circuit refer to figure 1- surge iec/en61000-4-5 2kv perf. criteria b external circuit refer to figure 1- emc recommended circuit vin gnd +vo -vo (0v) eut load lcm c0 tvs ldm mov fuse c1 c2 vin gnd (figure1) vra_d-5w recommended external circuit parameters: model vin: 12v vin: 24v vin: 48v ems fuse choose according to practical input current mov -- 10d560k 10d101k ldm -- 56 h56 h tvs smcj28a smcj48a smcj90a c0 680 f/25v 120 f/50v 120 f/100v emi c1 4.7 f/50v 4.7 f/50v 4.7 f/100v lcm 9.5mh 9.5mh 9.5mh c2 100pf/2kv 100pf/2kv 100pf/2kv vrb_d-5w recommended external circuit parameters: model vin: 12v vin: 24v vin: 48v ems fuse choose according to practical input current mov -- 10d560k 10d101k ldm -- 56 h56 h tvs smcj28a smcj48a smcj90a c0 680 f/25v 120 f/50v 120 f/100v emi c1 -- 4.7 f/50v 4.7 f/100v lcm -- 1.27mh 9.5mh c2 -- -- 100pf/2kv note:1.infigure1,part is ems recommended external circuit, part is emi recommended external circuit. choose according to requirements. 2. if there is no recommended parameters, the model no require the external component. emc recommended circuit pcb layout (figure 2)
the copyright and authority for the interpretation of the products are reserved by mornsun vra_d-5w&vrb_d-5w c/1-2012 page 4 of 5 product typical curve temperature derating curve output power percent(%) ambient temp.( ) safe operating area efficiency vs input voltage curve (full load) 50 54 58 62 66 70 74 78 82 86 90 18 20 22 24 26 28 30 32 34 36 input voltage(v) efficiency(%) vra2405d-5w vrb2405d-5w efficiency vs input voltage curve (full load) 50 54 58 62 66 70 74 78 82 86 90 36 40 44 48 52 56 60 64 70 75 input voltage(v) efficiency(%) vrb4805d-5w efficiency vs output load (vin=vin-nominal) 0 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 out p ut current percent ( % ) efficiency(%) vra2405d-5w vrb2405d-5w efficiency vs output load curve (vin=vin-nominal) 0 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 output current percent(%) efficiency(%) vrb4805d-5w outline dimensions, recommended footprint & packaging 27.50 [1.083] 27.50 [1.083] 20.32 [0.800] 20.32 [0.800] 5.08 [0.200] 10.20 [0.402] 4.10 [0.161] 0.50 [0.020] 1 3 2 4 5 no pin vin gnd -vo +vo 0v vin gnd 0v +vo 3 4 5 2 1 ? 0.80[0.031] l=530mm[20.866inch] tube quantity: 19pcs l=220mm[8.661inch] tube quantity: 7pcs pin footprint details note: unit:mm[inch] pin diameter tolerances: 0.10mm[ 0.004inch] general tolerances: 0.50mm[ 0.020inch] mechanical dimensions recommended footprint tube outline dimensions note: unit :mm[inch] general tolerances: 0.50mm[ 0.020inch] (front view) (bottom view) single dual dual single short tube inner package dimensions: l*w*h= 255*170*80mm short tube outer package dimensions(with six inner package boxes): l*w*h= 375*280*270mm long tube inner package dimensions: l*w*h= 580*200*100mm long tube outer package dimensions(with two inner package boxes): l*w*h= 600*215*220mm long tube outer package dimensions(with three inner package boxes): l*w*h= 600*215*325mm note grid 2.54*2.54mm : . ? 1.30 [0.051] 30.30 [1.193] 21.50 [0.846] 14.50[0.571] 12.30 [0.484] 3 5 2 1 3 5 2 1 4
the copyright and authority for the interpretation of the products are reserved by mornsun vra_d-5w&vrb_d-5w c/1-2012 page 5 of 5 test configurations input reflected-ripple current test setup input reflected-ripple current is measured with a inductor lin and cin to simulate source impedance. dc cin lin dc load oscilloscope current probe lin(4.7h) cin(220f, 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 10% of the full load. 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, or use our company?s products with a lower rated output power. 2) overload protection under normal operating conditions, the output circuit of these products has no protection against overload. the simplest method is add a circuit breaker to the circuit. 3) recommended circuit all the vra_d-5w&vrb_d-5w series have been tested according to the following recommended testing circuit before leaving factory. this series should be tested under load. never be tested under no load (see figure 3). if you want to further decrease the output ripple, you can increase capacitance properly or choose capacitors with low esr. however, the capacitance can?t exceed the maximum capacitor load in the list (table 1). dc dc vin gnd +vo 0v cin cout vin gnd +vo 0v cin cout dc dc -vo cout dual outpu t single output (figure 3) external capacitor table (table 1) capacitance output voltage cout # (f) cin(f) sin gle 5v 220 100 12v,15v 100 24v 47 du al 5v 100 12v,15 47 24v 22 note: # for each output. 4) no parallel connection o r plug and play note: 1. the load shouldn't be less than 10%, otherwise ripple will increase dramatically. operation under minimum load will not damage the converter; however, they may not meet all specification listed, and that will reduce the life of product. 2. max. capacitive load tested at nominal input voltage, full load and constant resistive load. 3. all specifications measured at ta=25c, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 4. in this datasheet, all the test methods of indications are based on corporate standards. 5. only typical models listed, other models may be different, please contact our technical person for more details. 6. our company offer custom products. 7. specifications subject to change without 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 http://www.mornsun-power.com
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