NXPSSL1623PH开关电源LED驱动方案

NXPSSL1623PH开关电源LED驱动方案关键词：电源管理,开关电源,LED驱动器NXP公司的SSL1623PH是开关电源(SMPS)控制器,能直接从通用电压火线(80V-276V)整流电压工作,它集成了6.5Ω和650V的功率开关,可调频率以方便设计,具有可调过流保护,以及欠压保护,温度保护和短路保护,主要用在LED镇流器,外观照明,LED点照明以及商业照明.本文介绍了SSL1623PH主要特性和优势,方框图以及典型应用电路图.TheSSL1623PHisaSwitchedModePowerSupply(SMPS)controllerICthatoperatesdirectlyfromtherectifieduniversalACmains.ItisimplementedinthehighvoltageEasyHighVoltageSilicon-On-Insulator(EZ-HVSOI)process,combinedwithalowvoltageBipolarComplementaryMetalOxideSemiconductor(BiCMOS)process.Thedeviceincludesahighvoltagepowerswitchandastart-upcircuitthatoperatesdirectlyfromtherectifiedmainsvoltage.Adedicatedcircuitforvalleyswitchingisbuiltin,whichmakesaveryefficientslim-lineelectronicLEDdriverconceptpossible.TheSSL1623PHcanoperateinLEDapplicationswithapowerrangeofupto25W.Applicationsbelow15WaremoresuitedtotheSSL152xfamilyofmainsLEDdrivers.InitsmostbasicversionofapplicationtheSSL1623PHactsasavoltagesource.Herenoadditionalsecondaryelectronicsarerequired.Acombinedvoltageandcurrentsourcecanberealizedwithminimumcostsforexternalcomponents.ImplementationoftheSSL1623PHrendersanefficientandlowcostLEDpowersupplysystem.SSL1623PH主要特性和优势:Integratedpowerswitch:6.5Ωand650VOperatesfromuniversalACmainssupplies,80Vto276VAdjustablefrequencyforflexibledesignRCoscillatorforloadinsensitiveregulationloopconstantValleyswitchingforminimumswitch-onlossAdjustableovercurrentprotectionUndervoltageprotectionTemperatureprotectionShort-circuitwindingprotectionSaferestartmodeforsystemfaultconditionsSimpleapplicationwithbothprimaryandsecondary(opto)feedback16-pinDIPpackageSSL1623PH应用:LEDballastsContourlightingLEDspotlightsChannelletterlightingDownlightingCommerciallighting(retaildisplays)AO-Electronics傲壹电子官网：中文网：典型应用电路图-初级检测