thecopyrightandauthorityfortheinterpretationoftheproductsarereservedby mornsun ura_ld-20wr2&urb_ld-20wr2 2013.11.29-a/3 page1of10 features efficiencyupto90% 4:1wideinputvoltagerange outputovercurrent,overvoltageandinput undervoltageprotection,shortcircuitprotection 1.5kvdcisolation operatingtemperaturerange:-40 c~+85 c six-sidedmetalshield industrystandardpinout meetcispr22/en55022classa meetul60950anden60950 a2s(chassis mounting)and a4s(din-rail mounting)havethefunctionofinputreverse connectionpreventing application ura_ld-20wr2&urb_ld-20wr2seriesareappliedto widevoltagerangeinputsituationsuchasdatatransmission device,batterypowersupplydevice,tele-comunicationdevice, distributedpowersupplysystem,remotecontrolsystem,industrial robotsystemetc. ura_ld-20wr2& urb_ld-20wr2series 20w,ultra-wideinput,isolated& regulatedsingle/dualoutput dc-dcconverter patentprotectied rohs partnumbersystem URB2405LD-20WR2 rated power package style output voltage input voltage product series selectionguide approval model inputvoltage (vdc) output voltage (vdc) outputcurrent(ma) inputcurrent (ma)(typ.) reflection ripple current (ma,typ.) max. capacitive load ( f) efficiency (%,typ.) @max. load nominal (range) max. max. min. @ max.load @ noload ce ura2405ld-20wr2 24 (9-36) 40 5 2000 100 969 20 30 4800 86 ura2412ld-20wr2 12 834 42 948 15 800 88 ura2415ld-20wr2 15 667 33 947 15 625 88 urb2403ld-20wr2 3.3 5000 250 800 40 18700 86 URB2405LD-20WR2 5 4000 200 916 60 9600 90 urb2409ld-20wr2 9 2222 111 947 18 4700 88 urb2412ld-20wr2 12 1667 84 937 15 1600 89 urb2415ld-20wr2 15 1333 67 926 15 1000 90 urb2424ld-20wr2 24 834 42 927 20 500 90 ura4805ld-20wr2 48 (18-75) 80 5 2000 100 485 20 4800 86 ura4812ld-20wr2 12 834 42 474 15 800 88 ura4815ld-20wr2 15 667 33 468 15 625 89 ul/ce urb4803ld-20wr2 3.3 5000 250 400 35 18700 86 urb4805ld-20wr2 5 4000 200 463 35 9600 90 urb4812ld-20wr2 12 1667 84 468 10 1600 89 urb4815ld-20wr2 15 1333 67 463 10 1000 90 urb4824ld-20wr2 24 834 42 463 10 500 90
thecopyrightandauthorityfortheinterpretationoftheproductsarereservedby mornsun ura_ld-20wr2&urb_ld-20wr2 2013.11.29-a/3 page2of10 note: serieswithsuffix h areheatsinkmounting;serieswithsuffix a2s arechassismounting withsuffix a4s aredin-railmounting,forexample urb2405ld-20whr2a2sischassismountingofwithheatsink,URB2405LD-20WR2a4sisdin-railmountingofwithoutheatsink;iftheapplicationhasa higherrequirementforheatdissipation,youcanchoosemoduleswithheatsink; absolutemaximumratingwithoutdamageontheconverter; fordual-output-convertersthegivenvalueisforoneoutput(forbothoutputsthesamevalue); theefficiencyof"a2s"and"a4s"isapprox.2%lowerfortheprotectionofinversepolarity. inputspecifications item testconditions min. typ. max. unit inputsurgevoltage(1sec.max.) 24vdcinput -0.7 -- 50 vdc 48vdcinput -0.7 -- 100 start-upvoltage 24vdcinput -- -- 9 48vdcinput -- -- 17.8 undervoltageshutdown 24vdcinput 7.5 -- -- 48vdcinput 16 -- -- start-uptime nominalinput&constantresistanceload -- 10 -- ms ctrl * modelson ctrlopenorconnectttlhighlevel(2.5-12vdc) modelsoff ctrlconnectgndorlowlevel(0-1.2vdc) inputcurrent(modelsoff) -- 1 -- ma inputfilter pifilter note:*thectrlcontrolpinvoltageisrefertognd. output specifications item testconditions min. typ. max. unit positiveoutputvoltageaccuracy -- 1 3 % negativeoutputvoltageaccuracy outputvoltagebalance dualoutput balanceload -- 0.5 1 lineregulation fullload,inputvoltagefromlowtohigh -- 0.2 0.5 loadregulation 10%to100%load -- 0.5 1 crossregulation dualoutput,mainoutput50%load, supplementoutputfrom10%to100%load -- -- 5 transientrecoverytime 25%loadstepchange -- 300 500 s transientresponsedeviation -- 3 5 % temperaturedrift 100%load -- 0.02 -- %/ c ripple&noise* 20mhzbandwidth -- 70 100 mvp-p outputvoltagetrim -- 10% -- vdc outputovervoltageprotection 3.3voutput -- 3.9 -- 5voutput -- 6.2 -- 9voutput -- 10.8 -- 12voutput -- 15 -- 15voutput -- 18 -- 24voutput -- 30 -- overcurrentprotection inputvoltagerange -- 160 -- % outputshortcircuitprotection hiccup,continuous,automaticrecovery note:*rippleandnoisetestedwith parallelcable method.seedetailedoperationinstructionsat dc-dcapplicationnotes. common specifications item testconditions min. typ. max. unit isolationvoltage input-output,testedfor1minute,leakagecurrentlessthan1ma 1500 -- -- vdc isolationresistance input-output,testat500vdc 1000 -- -- m isolationcapacitance 24voutput input/output,100khz/0.1v -- 2000 -- pf others -- 1000 -- switchingfrequency urb2424ld-20wr2pwmmode 315 -- 345 khz others pwmmode -- 300 -- mtbf mil-hdbk-217f@25 1000 -- -- khours safetyapprovals urb48xxld-20wr2 ul60950,en60950 others en60950
thecopyrightandauthorityfortheinterpretationoftheproductsarereservedby mornsun ura_ld-20wr2&urb_ld-20wr2 2013.11.29-a/3 page3of10 casematerial aluminumalloy size pcbmounting withoutheatsink 50.80 25.40 11.80 mm pcbmounting withheatsink 50.80 25.40 16.30 a2schassismounting withoutheatsink 76.00 31.50 21.20 a2schassismounting withheatsink 76.00 31.50 25.10 a4sdin-railmounting withoutheatsink 76.00 31.50 25.80 a4sdin-railmounting withheatsink 76.00 31.50 29.70 weight pcbmounting withoutheatsink -- 28 -- g pcbmounting withheatsink -- 36 -- a2schassismounting withoutheatsink -- 50 -- a2schassismounting withheatsink -- 58 -- a4sdin-railmounting withoutheatsink -- 70 -- a4sdin-railmounting withheatsink -- 78 -- environmental specifications item testconditions min. typ. max. unit storagehumidity noncondensing 5 -- 95 % operatingtemperature seetemperaturederatingcurve(figure3) -40 -- 85 c storagetemperature -55 -- 125 themax.casetemperature operatingtemperaturecurverange -- -- 105 leadtemperature 1.5mmfromcasefor10seconds -- -- 300 cooling freeairconvection shake 10-55hz,10g,30min.alongx,yandz emcspecifications 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,short andinterruptions immunity iec/en61000-4-29 0%-70% perf.criteriab e mcrecommendedcircuit ldm2 c0 tvs ldm1 mov fuse c1 v in gnd + vin gnd +vo -vo (0v) eut load cy1 2 cy (figure1) note:1.in figure 1,part is ems recommended external circuit, part is emi recommendedexternalcircuit(classb).chooseaccordingtorequirements. recommendedexternalcircuitparameters: model ura/b24_ld-20wr2 ura/b48_ld-20wr2 fuse chooseaccordingtopracticalinputcurrent mov s14k35 s14k60 ldm1 56 h tvs smcj48a smcj90a c0 330 f/50v 330 f/100v c1 1 f/50v 1 f/100v ldm2 4.7 h cy1 cy2 1nf/2kv emcrecommendedcircuitpcblayout (figure2) note:thepadspacebetweeninputandoutput(cy1/cy2)must 2mm.
thecopyrightandauthorityfortheinterpretationoftheproductsarereservedby mornsun ura_ld-20wr2&urb_ld-20wr2 2013.11.29-a/3 page4of10 emctestwaveform(classbtestcircuit) URB2405LD-20WR2 ce(positiveline) URB2405LD-20WR2 ce(negativeline) urb4815ld-20wr2 ce(positiveline) urb4815ld-20wr2 ce(negativeline) URB2405LD-20WR2 re(horizontal) URB2405LD-20WR2 re(vertical) urb4815ld-20wr2 re(horizontal) urb4815ld-20wr2 re(vertical) ura2405ld-20wr2ce(positiveline) ura2405ld-20wr2ce(negativeline)
thecopyrightandauthorityfortheinterpretationoftheproductsarereservedby mornsun ura_ld-20wr2&urb_ld-20wr2 2013.11.29-a/3 page5of10 ura4815ld-20wr2ce(positiveline) ura4815ld-20wr2ce(negativeline) ura2405ld-20wr2re(horizontal) ura2405ld-20wr2re(horizontal) ura4815ld-20wr2re(horizontal) ura4815ld-20wr2re(horizontal) product typical curve temperaturederatingcurve 0 20 40 60 80 100 120 -40 0 40 80 120 60 85 operating temp( c) o u t p u t p o w e r p e r c e n t ( % ) withoutheatsink with heatsink safe operating area 55 (figure3)
thecopyrightandauthorityfortheinterpretationoftheproductsarereservedby mornsun ura_ld-20wr2&urb_ld-20wr2 2013.11.29-a/3 page6of10 50 55 60 65 70 75 80 85 90 95 100 9 121518212427303336 efficiency(%) total output current (%) efficiency vs input voltage curve (full load) URB2405LD-20WR2 30 40 50 60 70 80 90 100 5 102030405060708090100 efficiency(%) input voltage(v) efficiency vs output load curve (vin=vin-nominal) URB2405LD-20WR2 50 55 60 65 70 75 80 85 90 95 100 18243036424854606675 efficiency(%) total output current (%) efficiency vs input voltage curve (full load) urb4815ld-20wr2 30 40 50 60 70 80 90 100 5102030405060708090100 efficiency(%) input voltage(v) efficiency vs output load curve (vin=vin-nominal) urb4815ld-20wr2 50 55 60 65 70 75 80 85 90 95 100 9 121518212427303336 efficiency(%) total output current (%) efficiency vs input voltage curve (full load) ura2405ld-20wr2 30 40 50 60 70 80 90 100 5102030405060708090100 efficiency(%) input voltage(v) efficiency vs output load curve (vin=vin-nominal) ura2405ld-20wr2 50 55 60 65 70 75 80 85 90 95 100 18243036424854606675 efficiency(%) total output current (%) efficiency vs input voltage curve (full load) ura4815ld-20wr2 30 40 50 60 70 80 90 100 5102030405060708090100 efficiency(%) input voltage(v) efficiency vs output load curve (vin=vin-nominal) ura4815ld-20wr2
thecopyrightandauthorityfortheinterpretationoftheproductsarereservedby mornsun ura_ld-20wr2&urb_ld-20wr2 2013.11.29-a/3 page7of10 pcbmountingoutlinedimensions,recommendedfootprint(withoutheatsink) pcbmountin goutlinedimensions(withheatsink) ura-ld-20wr2a2s&urb-ld-20wr2a2s chassismountingoutlinedimensions footprintdetails pin 1 2 3 4 5 6 dual ctrl gnd vin -vo 0v +vo single ctrl gnd vin 0v trim +vo
thecopyrightandauthorityfortheinterpretationoftheproductsarereservedby mornsun ura_ld-20wr2&urb_ld-20wr2 2013.11.29-a/3 page8of10 ura_ld-20whr2a2s&urb_ld-20whr2a2schassismountingoutlinedimensions footprintdetails pin 1 2 3 4 5 6 dual ctrl gnd vin -vo 0v +vo single ctrl gnd in 0v trim +vo ura-ld-20wr2a4s&urb-ld-20wr2a4sdin-railmountingoutlinedimensions itishangedonthets35rail footprintdetails pin 1 2 3 4 5 6 dual ctrl gnd vin -vo 0v +vo single ctrl gnd vin 0v trim +vo ura_ld-20whr2a4s&urb_ld-20whr2a4sdin-railmountingoutlinedimensions din-railmodulesarefittingtots35rails footprintdetails pin 1 2 3 4 5 6 dual ctrl gnd vin -vo 0v +vo single ctrl gnd vin 0v trim +vo
thecopyrightandauthorityfortheinterpretationoftheproductsarereservedby mornsun ura_ld-20wr2&urb_ld-20wr2 2013.11.29-a/3 page9of10 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 note:leaveopenifnotused;valueforr1,r2,r3,andv ref refertotheabovetable1;r t :resistanceoftrim;a:user-definedparameter,noactualmeanings.;vo :the trimup/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 ) 15 10 15 17.8 17.8 20 vref(v) 1.24 2.5 2.5 2.5 2.5 2.5 designconsiderations recommendedcircuit alltheura_ld-20wr2&urb_ld-20wr2serieshavebeentestedaccordingtothefollowingrecommendedtestingcircuitbeforeleaving factory(seefigure4). ifyouwanttofurtherdecreasetheinput/outputripple,youcanincreaseacapacitanceproperlyorchoosecapacitorswithlowesr,butthe greatestcapacitanceofitsfiltercapacitormustlessthanthemax.capacitiveload.therecommendedcapacitanceofitsfiltercapacitorsees (table2).
thecopyrightandauthorityfortheinterpretationoftheproductsarereservedby mornsun ura_ld-20wr2&urb_ld-20wr2 2013.11.29-a/3 page10of10 note: 1.min.loadshouldn'tbelessthan5%,otherwiseripplemaybeincreaseddramatically,iftheproductoperatesundermin.load,itmaynotbe guaranteedtomeetallspecificationlisted.operationunderminimumloadwillnotdamagetheconverter. 2.recommendeddualoutputmodelsunbalancedload: 5%,iftheproductoperates> 5%,itmaynotbeguaranteedtomeetallspecification listed,pleasecontactourtechnicalpersonformoredetail. 3.max.capacitiveloadistestedatnominalinputvoltageandfullload. 4.allspecificationsmeasuredatta=25 c,humidity<75%,nominalinputvoltageandratedoutputloadunlessotherwisespecified. 5.inthisdatasheet,allthetestmethodsofindicationsarebasedonourcorporatestandards. 6.allcharacteristicsareforlistedmodel,non-standardmodelsmayperformdifferently,pleasecontactourtechnicalpersonformoredetail. 7.contactusforyourspecificrequirement. 8.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 dc dc vin gnd +vo 0v cin cout vin gnd +vo 0v cin cout dc dc -vo cout dual output single output (figure4) externalcapacitortable(table2) single vout (vdc) cout ( f) cin ( f) dual vout (vdc) cout ( f) cin ( f) 3.3v/5 470 100 5 220 100 9/12/15 220 12/ 15 100 24 100 -- -- itisnotrecommendedtoincreasetheoutputpowercapabilitybyconnectingtwoormoreconvertersinparallel.theproductisnot hot-swappable
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