infineonxdpl8220100w无闪烁led驱动参考设计

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1、InfineonXDPL8220100W无闪烁LED驱动参考设计时间:2017-03-1411:12:01作者:Infineon来源:中电网Infineon公司的XDPL8220是高度集成新一代器件，组合了边界模式PFC和准谐振FB控制器以及初级边调整,从而节省了外接元件和优化了性能，通用AC输A(90-305VAC)或DC输出(90-305VDC),可用功率范I韦I20W到150W,多控制模式(恒流(CC)/恒压(CV”有限功率(LP),效率大于90%,主要用在LED照明的电子控制(ECG).本文介绍了XDPL8220主要特性,框图,型应用电路图以及参考设计REF-XDPL82

2、20-U100W主要特性与优势，电路图和PCB设计图.XDPL8220isahighlyintegratednext-generationdevicecombiningaboundarymodePFCplusaquasi-resonantFBcontrollerwithprimary-sideregulation.Theintegrationofthesefunctionsenablessavingofexternalpartsandoptimizesperformaneebyharmonizedoperationofthetwostages.XDPL8220usesaconst

3、anton-timeschemewithaTHDimprovementalgorithmtoprovideahighpowerfactorsndexcellentTHDperformance.WithitsuniquecontrolschemeofCV,CCandLP,theLEDdriverdesignerisprovidedwithalargedegreeofflexibilityandcanutilizethesystemhardwaretoitslimits.Theon-chipOneTimeProgrammableMemory(OTP)memoryhasanareafo

4、rparametersthatcontrolthebehaviorofthecircuit,e.g.theoutputcurrentorthemaximumoutputpower.Thisenablestheuserofthedevicetocreateaplatformconceptwithsignificantlyfewerdifferenthardwareversionswhilestillcoveringthesameapplicationrange.Thetwo-stageapproachreducesanyvariationintheoutputcurrent(fli

5、cker)toanon-visiblelevel.ByseparatingthePFCfromthepowerconversionpart(FB),bothstagesoperateinamorestablemannerandrequirefewermargins,whichhasapositiveinfluenceonthecost.Lightingrequiresmoreandmore24/7operation,makingitnecessarytohaveastand-bymodewithshortwakeuptimesandlowpowerconsumption.Thep

6、owerconsumptionoflessthan100mWoftheXDPL8220-basedsystemsdefinesthenewstandardforstand-bypowerinlightingECGs.XDPL8220enablesadaptivetemperatureprotectionusingeithertheinternalsensororanexternalNegativeTemperatureCoefficientThermistor(NTC),orboth.Futureproofflexibilitywithapplication-orientedpr

7、ogrammableoperatingwindowsenablesmanagementofLEDgenerationsandportfoliocomplexity.XDPL8220主要特性：•UniversalACinput(90・305VAC)orDCinput(90-305VDC)•Applicablepowerrangeof20Wto150W•SmallnumberofexternalpartsoptimizesBillofMaterials(BOM)andformfact