NXPSSL412090WLED照明解决方案

NXPSSL412090WLED照明解决方案NXP公司的SSL4120是集成了PFC控制器和半桥谐振转换器(HBC)控制器的电源控制器,能以上转换器来驱动分立MOSFET和谐振半桥配置来驱动两个分立功率MOSFET,火线电压从85V到305V(AC),主要用在25W到400W之间的电源.本文介绍了SSL4120主要特性和优势,框图和应用电路,以及90W演示板SSL4120DB1123主要特性和优势,技术指标和框图,电路图,材料清单和PCB设计图.TheSSL4120integratesaPowerFactorCorrector(PFC)controllerandacontrollerforaHalf-BridgeresonantConverter(HBC)inamulti-chipIC.ItprovidesthedrivefunctionforthediscreteMOSFETinanup-converterandforthetwodiscretepowerMOSFETsinaresonanthalf-bridgeconfiguration.EfficientPFCoperationisachievedbyimplementingfunctionsforQuasi-Resonant(QR)operationathigh-powerlevelsandQRwithvalleyskippingatlowerpowerlevels.OverCurrentProtection(OCP),OverVoltageProtection(OVP)anddemagnetizationsensingensuresafeoperationunderallconditionsTheHBCmoduleisahigh-voltagecontrollerforazero-voltageswitchingLLCresonantconverter.Itcontainsahigh-voltagelevelshiftcircuitandseveralprotectioncircuitsincludingOCP,open-loopprotection,capacitivemodeprotectionandageneralpurposelatchedprotectioninput.Thehigh-voltagechipisfabricatedusingaproprietaryhigh-voltageBipolar-CMOS-DMOSpowerlogicprocessenablingefficientdirectstart-upfromtherectifieduniversalmainsvoltage.Thelow-voltageSilicon-On-Insulator(SOI)chipisusedforaccurate,high-speedprotectionfunctionsandcontrol.TheSSL4120controlledPFCcircuitandresonantconvertertopologyisveryflexible.Itcanbeusedforabroadrangeofapplicationsoverawidemainsvoltagerange.CombiningPFCandHBCcontrollersinasingleICmakestheSSL4120idealforcontrollingcompactpowersuppliesinlightingapplications,suchasLEDdrivers.UsingtheSSL4120,highlyefficientandreliablepowersuppliesprovidingover100Wcanbedesignedeasilywhichusetheminimumofexternalcomponents.SSL4120主要特性和优势:一般特性:IntegratedPFCandHBCcontrollersUniversalmainssupplyoperationfrom85Vto305V(AC)HighlevelofintegrationresultinginalowexternalcomponentcountandacosteffectivedesignEnableinputtoenableonlythePFCorboththePFCandHBCcontrollersOn-chiphigh-voltagestart-upsourceStand-aloneoperationorICsuppliedfromexternalDCsourcePFC控制器特性:Boundarymodeoperationwithon-timecontrolValley/zero-voltageswitchingforminimumswitchinglossesFrequencylimitingtoreduceswitchinglossesAccurateboostvoltageregulationBurstmodeswitchingwithsoft-startandsoft-stopHBC控制器特性:Integratedhigh-voltagelevelshifterAdjustableminimumandmaximumfrequencyMaximum500kHzhalf-bridgeswitchingfrequencyAdaptivenon-overlaptimeBurstmodeswitching保护特性:SaferestartmodeforsystemfaultconditionsGenerallatchedprotectioninputforoutputovervoltageprotectionorexternaltemperatureprotectionProtectiontimerfortime-outandrestartOvertemperatureprotectionSoft(re)startforbothcontrollersUndervoltageprotectionformains(brownout),boost,ICsupplyandoutputvoltageOvercurrentregulationandprotectionforbothcontrollersAccurateovervoltageprotectionfortheboostvoltageCapacitivemodeprotectionfortheHBCcontrollerSSL4120应用:TheICisusedinallLEDlightingapplicationsthatrequireveryefficient,lowTotalHarmonicDistortion(THD),highPowerFactor(PF)andauniversalmainsinputvoltage.TheSSL4120providesacost-effectivepowersupplysolutionbetween25Wand400W.图1.SSL4120框图图2.SSL4120应用电路图演示板SSL4120DB1123-90W1.9ACC调光LED驱动器TheSSL4120DB1123demoboardisadimmableLEDdriverexampleusingaPFCandanLLCstage.ThismanualdescribesthespecificationanduseoftheSSL4120DB1123board.图3.演示板SSL4120DB1123框图演示板SSL4120DB1123主要特性和优势:•EfficientPFCandLLCtopology•Largeinputvoltagerange•Shortturn-ondelaytime•Lowmainscurrentharmonics•LLCstagewithlargeoutputvoltagerange•Dimmable•SinglelayerPCB146x60mm,wavesoldering演示板SSL4120DB1123主要指标:图4.演示板SSL4120DB1123外形图图5.演示板SSL4120DB1123电路图:火线输入和PFC级图6.演示板SSL4120DB1123电路图:LLC级和LED输出图7.演示板SSL4120DB1123PCB顶层元件布局图图8.演示板SSL4120DB1123PCB底层铜线和元件布局图演示板SSL4120DB1123材料清单:AO-Electronics傲壹电子官网：中文网：