thecopyrightandauthorityfortheinterpretationoftheproductsarereservedby mornsun vrb_ld-30wr2 2013.12.11-a/3 page1of8 features efficiencyupto89% 2:1wideinputvoltagerange 1.5kvdcisolation operatingtemperaturerange:-40 c~+85 c outputovercurrentprotection,outputover voltageprotection,inputundervoltage protectionandoutputshortcircuit protection(automaticrecovery) six-sidedmetalshield,industrystandard pinout inversepolarityprotectionfora2s chassis mounting anda4s din-railmounting meeten60950andul60950 application thevrb_ld-30wr2seriesoffer30wofoutput,with2:1 wideinputvoltageof18-36vdc,36-75vdcandfeatures 1500vdcisolation,overcurrentandshort-circuitprotectionetc, aswellassix-sidedmetalshielding.itoffersgoodemc performance,meet en60950 and ul60950 standards.all modelsareparticularlysuitedtoindustrialcontrol,electric power,instrumentation,tele-communicationsetc. vrb_ld-30wr2series 30w,wideinput,isolated®ulated singleoutputdc-dcconverter patentprotected rohs partnumbersystem vrb2405ld-30wr2 rated power package style output voltage input voltage product series selectionguide approval modelnumber inputvoltage(vdc) output voltage (vdc) outputcurrent(ma) inputcurrent (ma)(typ.) reflection ripple current (ma,typ.) max. capacitor load (max, f) efficiency (%,typ.) @max.load nominal (range) max. max. min. @max. load @no load ce vrb2403ld-30wr2 24 (18-36) 40 3.3 6000 600 948 120 48 6800 87 vrb2405ld-30wr2 5 6000 600 1420 120 73 6800 88 vrb2409ld-30wr2 9 3333 333 1420 20 72 680 88 ul/ce vrb2412ld-30wr2 12 2500 250 1420 20 72 680 88 ce vrb2415ld-30wr2 15 2000 200 1404 20 72 680 89 VRB2424LD-30WR2 24 1250 125 1404 20 72 470 89 vrb4803ld-30wr2 48 (36-75) 80 3.3 6000 600 474 80 25 6800 87 vrb4805ld-30wr2 5 6000 600 710 80 36.5 6800 88 vrb4812ld-30wr2 12 2500 250 702 20 36 680 89 vrb4815ld-30wr2 15 2000 200 702 20 36 680 89 vrb4824ld-30wr2 24 1250 125 710 20 36 470 88 note: serieswithsuffix h areheatsinkmounting,forexamplevrb2405ld-30whr2.serieswithsuffix"a2s"arechassismounting,withsuffix"a4s"aredin-rail mounting,forexamplevrb2405ld-30wr2a2sischassismounting,vrb2405ld-30wr2a4sisdin-railmounting.iftheapplicationhasahigherrequirementfor heatdissipation,youcanchoosemoduleswithheatsink. absolutemaximumratingwithoutdamageontheconverter,butitisn'trecommended. theefficiencyof"a2s"and"a4s"isapprox.2%lowerfortheprotectionofinversepolarity. inputspecifications item testconditions min. typ. max. unit inputsurgevoltage(1sec.max.) 24vdcinputmodels -0.7 -- 50 vdc 48vdcinputmodels -0.7 -- 100 start-upvoltage 24vdcinputmodels -- 17.8 18 48vdcinputmodels -- 35.8 36
thecopyrightandauthorityfortheinterpretationoftheproductsarereservedby mornsun vrb_ld-30wr2 2013.12.11-a/3 page2of8 undervoltageshutdown 24vdcinputmodels 16 -- -- vdc 48vdcinputmodels 32 -- -- start-uptime nominalinput&constantresistanceload -- 10 -- ms ctrl * modelson ctrlopenorconnectttlhighlevel(2.5-12vdc) modelsoff ctrlconnectgndorlowlevel(0-1.2vdc) inputcurrentatshutdown -- 1 -- ma inputfilter pifilter *thectrlcontrolpinvoltageisrefertognd. outputspecifications item testconditions min. typ. max. unit outputvoltageaccuracy -- 1 3 % linevoltageregulation inputvoltagefromlowtohighat100%load -- 0.2 0.5 loadregulation from10%to100%loadnominalinput -- 0.5 1 transientrecoverytime 25%loadstepchange -- 300 500 s transientresponsedeviation -- 3 5 % temperaturedrift 100%load -- 0.02 -- %/ c ripple&noise* 20mhzbandwidth -- 50 120 mvp-p outputvoltagerange(trim) -- 10%vo -- vdc overvoltageprotection fullinputvoltage 3.3vdcoutput -- 3.96 -- 5vdcoutput -- 6 -- 9vdcoutput -- 10.8 -- 12vdcoutput -- 15 -- 15vdcoutput -- 18 -- 24vdcoutput -- 28 -- overcurrentprotection fullinputvoltage 120 130 150 % shortcircuitprotection hiccup,automaticrecovery note:*rippleandnoisetestedby parallelcable method.seedetailedoperationinstructionsat dc-dcapplicationnotes . commonspecifications item testconditions min. typ. max. unit isolationvoltage input-output,testedfor1minute,leakagecurrentlessthan1ma 1500 -- -- vdc isolationresistance input-output,testat500vdc 1000 -- -- m isolationcapacitance input-output,100khz/0.1v -- 2000 -- pf switchingfrequency pwmmode -- 300 -- khz mtbf mil-hdbk-217f@25 1000 -- -- khours safetyapprovals vrb2412ld-30wr2 ul60950,en60950 others en60950 casematerial aluminumalloy size pcbmounting withoutheatsink 50.8x25.4x11.8 mm pcbmounting withheatsink 50.8x25.4x16.3 a2schassismounting withoutheatsink 76.0x31.5x21.2 a4sdin-railmounting withoutheatsink 76.0x31.5x25.8 a2schassismounting withheatsink 76.0x31.5x25.1 a4sdin-railmounting withheatsink 76.0x31.5x29.7 weight pcbmounting withoutheatsink -- 22 -- g pcbmounting withheatsink -- 35 -- a2schassismounting withoutheatsink -- 44 -- a4sdin-railmounting withoutheatsink -- 64 -- a2schassismounting withheatsink -- 57 -- a4sdin-railmounting withheatsink -- 77 -- environmental specifications item testconditions min. typ. max. unit storagehumidity noncondensing 5 -- 95 % operatingtemperature seetemperaturederatingcurve seefigure3 -40 -- 85 c storagetemperature -55 -- 125
thecopyrightandauthorityfortheinterpretationoftheproductsarereservedby mornsun vrb_ld-30wr2 2013.12.11-a/3 page3of8 themax.casetemperature operatingtemperaturecurverange -- -- 105 c solderingtemperature 1.5mmfromcasefor10seconds -- -- 300 cooling freeairconvection shake 10-55hz,10g,30min.alongx,yandz emc specifications emi ce cispr22/en55022 classa withoutexternalcircuit /classb externalcircuitrefertofigure1- re cispr22/en55022 classa withoutexternalcircuit /classb externalcircuitrefertofigure1- ems esd iec/en61000-4-2 contact 4kv perf.criteriab rs iec/en61000-4-3 10v/m perf.criteriaa eft iec/en61000-4-4 2kv externalcircuitrefertofigure1- perf.criteriab surge iec/en61000-4-5 2kv externalcircuitrefertofigure1- perf.criteriab cs iec/en61000-4-6 3vr.m.s perf.criteriaa voltagedips,shortand interruptionsimmunity iec/en61000-4-29 0%-70% perf.criteriab emcrecommendedcircuit vin gnd +vo 0v eut load c2 lcm1 c0 tvs ldm1 mov fuse c1 vin gnd cy1 cy2 (figure1) note:1.infigure1,part isemsrecommendedexternalcircuit,part isemirecommended externalcircuit.chooseaccordingtorequirements. 2.fl2d-30-102istheemcauxiliarycomponentofourcompany. recommendedexternalcircuitparameters: model vrb24_ld-30wr2 vrb48_ld-30wr2 fuse chooseaccordingtopracticalinputcurrent mov s14k35 s14k60 ldm1 56 h 56 h tvs smcj48a smcj90a c0 330 f/50v 330 f/100v c1,c2 4.7uf/50v 2.2uf/100v lcm1 1mh(fl2d-30-102) cy1,cy2 1nf/2kv 1nf/2kv emcrecommendedcircuitpcblayout (figure2) emitestwaveform(classbapplicationcircuit) vrb2405ld-30wr2 ce positiveline vrb2405ld-30wr2 ce negativeline
thecopyrightandauthorityfortheinterpretationoftheproductsarereservedby mornsun vrb_ld-30wr2 2013.12.11-a/3 page4of8 vrb4815ld-30wr2 ce positiveline vrb4815ld-30wr2 ce negativeline vrb2405ld-30wr2 re horizontal vrb2405ld-30wr2 re vertical vrb4815ld-30wr2 re horizontal vrb4815ld-30wr2 re vertical producttypicalperformancecurve temperaturederatingcurve (outputvoltage 5v) (outputvoltage 5v) o u t p u t p o w e r p e r e n t ( % ) operating temp( ) c 0 20 40 60 80 100 120 -40 0 40 120 55 85 65 o u t p u t p o w e r p e r e n t ( % ) operating temp( ) c safe operating area withoutheatsink with heatsink (figure3)
thecopyrightandauthorityfortheinterpretationoftheproductsarereservedby mornsun vrb_ld-30wr2 2013.12.11-a/3 page5of8 efficiency vs input voltage curve (full load) 50 55 60 65 70 75 80 85 90 95 100 18202224262830323436 input voltage(v) efficiency(%) vrb2405ld-30wr2 efficiency vs output load curve (vin=vin-nominal) 0 10 20 30 40 50 60 70 80 90 100 102030405060708090100 total output current (%) efficiency(%) vrb2405ld-30wr2 pcbmounting(withoutheatsink)outlinedimensions,recommendedfootprint pcbmounting(withheatsink)outlinedimensions
thecopyrightandauthorityfortheinterpretationoftheproductsarereservedby mornsun vrb_ld-30wr2 2013.12.11-a/3 page6of8 vrb_ld-30wr2a2schassismountingoutlinedimensions footprintdetails pin 1 2 3 4 5 6 function ctrl gnd vin trim 0v +vo vrb_ld-30whr2a2s chassismountingoutlinedimensions footprintdetails pin 1 2 3 4 5 6 function ctrl gnd vin trim 0v +vo vrb_ld-30wr2a4sdin-railmountingoutlinedimensions din-railmodulesarefittingtots35rails footprintdetails pin 1 2 3 4 5 6 function ctrl gnd vin trim 0v +vo
thecopyrightandauthorityfortheinterpretationoftheproductsarereservedby mornsun vrb_ld-30wr2 2013.12.11-a/3 page7of8 vrb_ld-30whr2a4sdin-railmountingoutlinedimensions din-railmodulesarefittingtots35rails footprintdetails pin 1 2 3 4 5 6 function ctrl gnd vin trim 0v +vo packagediagram specialpackageseries a2s/a4s testconfigurations inputreflected-ripplecurrenttestsetup inputreflected-ripplecurrentismeasuredwithaninductorlinandcapacitorcintosimulatesourceimpedance. dc cin lin dc load oscilloscope current probe lin(4.7 h) cin(220 f,esr<1.0 at100khz) trimapplication&trimresistance applicationcircuitfortrim(partinbrokenlineistheinteriorofmodels) 0v r 2 r 1 r 3 v ref r t trim +vo 0v r 2 r 1 r 3 v ref r t trim +vo trim up trim down formulaforresistanceoftrim up: a= vref vo -vref r 1 r= t ar 2 r-a 2 -r 3 down: a= vref vo -vref r 2 r= t ar 1 r-a 1 -r 3
thecopyrightandauthorityfortheinterpretationoftheproductsarereservedby mornsun vrb_ld-30wr2 2013.12.11-a/3 page8of8 note: 1.min.loadshouldn'tbelessthan10%,otherwiseripplemaybeincreaseddramatically,iftheproductoperatesundermin.load,itmaynotbe guaranteedtomeetallspecificationslisted.operationunderminimumloadwillnotdamagetheconverter. 2. max.capacitiveloadistestedatinputvoltagerangeandfullload. 3.allspecificationsmeasuredatta=25 c,humidity<75%,nominalinputvoltageandratedoutputloadunlessotherwisespecified. 4. inthisdatasheet,alltestmethodsarebasedonourcorporatestandards. 5. allcharacteristicsareforlistedmodels,andnon-standardmodelsmayperformdifferently.pleasecontactourtechnicalsupportformoredetails. 6.pleasecontactourtechnicalsupportforanyspecificrequirement. 7. specificationsofthisproductaresubjecttochangeswithoutpriornotice. mornsunscience&technologyco.,ltd. address:no.5,kehuist.1,kehuidevelopmentcenter,scienceave.,guangzhousciencecity,luogangdistrict,guangzhou,p.r.china. tel:86-20-38601850 fax:86-20-38601272 e-mail: info@mornsun.cn http://www.mornsun-power.com note:valueforr1,r2,r3,andv ref refertotheabovetable1. r t :resistanceoftrim a:user-definedparameter,noactualmeanings. vo :thetrimup/downvoltage. (table1) vo parameter 3.3(vdc) 5(vdc) 9(vdc) 12(vdc) 15(vdc) 24(vdc) r1(k ) 4.801 2.883 7.5 10.971 14.497 24.872 r2(k ) 2.863 2.864 2.864 2.864 2.864 2.863 r3(k ? designconsiderations 1 recommendedcircuit allthevrb_ld-30wr2serieshavebeentestedaccordingtothefollowingrecommendedtestcircuitbeforeleavingthefactory(seefigure4). ifyouwanttofurtherdecreasetheinput/outputripple,youcanincreaseacapacitance-valuesproperlyorchoosecapacitorswithlowesr,but the totalcapacitanceofthefiltercapacitormustnotexceedthemax.capacitiveload. vin gnd +vo 0v dc cin dc cout (figure4) externalcapacitortable(table2) 2 itisnotrecommendedtoincreasetheoutputpowercapabilitybyconnectingtwoormoreconvertersinparallel.theproductisnothot- swappable capacitance outputvoltage cout( f) cin( f) 3.3v,5v 220 100 9v,12v,15v 100 24v 47
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