mornsunreservesthecopyright specificationssubjecttochangewithoutnotice. ia_ws-1w5 a/3-2012 page1of2 rohs ia_ws-1w5series 1.5w,fixedinput,isolated®ulated dualoutputdc-dcconverter features sippackage temperaturerange:-25 cto+75 c noheatsinkrequired internalsmdconstruction noexternalcomponentrequired industrystandardpinout rohscompliance applications the ia_ws-1w5 series are specially designedforapplicationswhereagroupofpolar powersuppliesareisolatedfromtheinputpower supplyinadistributedpowersupplysystemona circuitboard. theseproductsapplyto: 1) wherethevoltageoftheinputpowersupply isfixed(voltagevariation ? 10%); 2) whereisolationisnecessarybetweeninput andoutput(isolationvoltage 1000vdc); 3) wheretheregulationoftheoutputvoltage andtheoutputripplenoisearedemanded. modelselection IA0512WS-1W5 product series input voltage output voltage package style rated power mornsunscience&technologyco.,ltd. address:no.5,kehuist.1,kehuidevelopment center,scienceave.,guangzhousciencecity, luogangdistrict,guangzhou,p.r.china. tel:86-20-38601850 fax:86-20-38601272 http://www.mornsun-power.com productprogram part number input output efficiency (%,typ) voltage(vdc) voltage (vdc) current(ma) nominal range max min IA0512WS-1W5 5 4.5-5.5 12 60 6 60 ia1215ws-1w5 12 10.8-13.2 15 50 5 60 note:modelslistedwithstrike-throughtexthavebeenofficiallydiscontinued. isolationspecifications item testconditions min typ max units isolationvoltage testedfor1minuteand1mamax 1000 vdc isolationresistance testat500vdc 1000 m outputspecifications item testconditions min typ max units outputpower 0.15 1.5 w lineregulation forvinchangeof 5% 0.25 % loadregulation 10%to100%fullload 1 outputvoltageaccuracy100%fullload 3 temperaturedrift 100%fullload 0.03 %/ c outputripple* 20mhzbandwidth 20 30 mvp-p outputnoise* 20mhzbandwidth 75 150 switchingfrequency fullload,nominalinput 75 khz *testrippleandnoiseby parallelcable method.seedetailedoperationinstructionsattestingof powerconvertersection,applicationnotes. note: 1.allspecificationsmeasuredatt a =25 c,humidity<75%,nominalinputvoltageandratedoutput loadunlessotherwisespecified. 2.seebelowrecommendedcircuitsformoredetails. 3.operationunderminimumloadwillnotdamagetheconverter;however,theymaynotmeetall specificationlisted,andthatwillreducethelifeofproduct.
mornsunreservesthecopyright specificationssubjecttochangewithoutnotice. ia_ws-1w5 a/3-2012 page2of2 commonspecifications recommendedcircuit if you want to further decrease the input/outputripple,ancapacitorfilteringnetwork maybeconnectedtotheinputandoutputends ofthedc/dcconverter,see(figure1). vin gnd +vo 0v dc cin dc cout (figure1) however,thecapacitanceoftheoutputfilter capacitormustbeproper.ifthecapacitanceis toobig,astartupproblemmightarise.forevery channel of output, provided the safe and reliable operation is ensured, the greatest capacitanceofitsfiltercapacitorsees(table1). externalcapacitortable(table1) it snotrecommendedtoconnectanyexternal capacitorintheapplicationfieldwithlessthan0.5 wattoutput. overloadprotection undernormaloperatingconditions,theoutput circuitofthese productshasnoprotection against over-current and short-circuits. the simplestmethodistoconnectaself-recovery fuseinseriesattheinputendoraddacircuit breakertothecircuit. inputover-voltageprotectioncircuit thesimplestdeviceforinputover-voltage protectionisalinearvoltageregulatorwith overheatprotectionthatisconnectedtothe inputendinseries(figure2). vin gnd 0v +vo dc dc -vo reg (figure2) whentheenvironmenttemperatureishigher than71 c,theproductworkingshouldbe seetemperaturederatinggraph. noparallelconnectionorplugandplay. vin (vdc) cin ( f) vo (vdc) cout ( f) 5 4.7 12 1 12 2.2 15 0.47 item testconditions min typ max units storagehumidity 95 % operatingtemperature -25 75 c storagetemperature -45 105 temp.riseatfullload 25 leadtemperature 1.5mmfromcasefor10seconds 300 cooling freeairconvection casematerial plastic(ul94-v0) shortcircuitprotection* 1 s mtbf 3500 khours weight 6.3 g * supplyvoltagemustbediscontinuedattheendofshortcircuitduration. typicalcharacteristics operating temp.( ) c temperature derating graph outlinedimensions&pinconnections applicationnote requirementonoutputload toensurethismodulecanoperateefficientlyandreliably,duringoperation,theminimum output loadcould notbelessthan10% ofthefullload.iftheactualoutputpowerisvery small, pleaseconnectaresistorwithproperresistanceattheoutputendinparallelto increase theload.
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