STSTLUX385A150WHID数字镇流器解决方案

ST公司的STLUX385A是用于照明和电源转换的具有六个PWM发生器,96MHzPLL和DALI的数字控制器.器件集成了各种架构和应用,如驱动多个LED串的降压转换器,用于PFC的升压转换器,用于大功率可调光LED串的半桥谐振转换器和用于HID灯镇流器的全桥控制器.本文介绍了STLUX385A主要特性,内部框图,以及基于STLUX385A的150WHID数字镇流器STEVAL-ILH007V1主要特性,电路图和材料清单.TheSTLUX385AdeviceispartoftheSTLUX™familyofSTMicroelectronics®digitaldevicestailoredforlightingandpowerconversionapplications.TheSTLUX385Ahasbeensuccessfullyintegratedinawiderangeofarchitecturesandapplications,startingfromsimplebuckconvertersfordrivingmultipleLEDstrings,boostforpowerfactorcorrections,half-bridgeresonantconvertersforhighpowerdimmableLEDstringsanduptofullbridgecontrollersforHIDlampballasts.TheheartoftheSTLUX385AdeviceistheSMED(statemachineeventdriven)technologywhichallowsthedevicetooperatesixindependentlyconfigurablePWMclockswithamaximumresolutionof1.3ns.ASMEDisapowerfulautonomousstatemachine,whichisprogrammedtoreacttobothexternalandinternaleventsandmayevolvewithoutanysoftwareintervention.TheSMEDreactiontimecanbeaslowas10.4ns,givingtheSTLUX385Atheabilityofoperatingintimecriticalapplications.TheSMEDofferssuperiorperformancewhencomparedtotraditional,timerbased,PWMgenerators.EachSMEDisconfiguredviatheSTLUX385Ainternalmicrocontroller.TheintegratedcontrollerextendstheSTLUX385Areliabilityandguaranteesmorethan15yearsofbothoperatinglifetimeandmemorydataretentionforprogramanddatamemoryaftercycling.AsetofdedicatedperipheralscompletetheSTLUX385A:4analogcomparatorswithconfigurablereferencesand50nsmax.propagationdelay.Itisidealtoimplementzerocurrentdetectionalgorithmsordetectcurrentpeaks.10-bitADCwithconfigurableopampand8-channelsequencer.DALI:hardwareinterfacethatprovidesfullIEC60929andIEC62386slaveinterface.96MHzPLLforhighoutputsignalresolution.STLUX385A主要特性:傲壹电子(AO-Electronics)官网：中文网:(SMEDs)(statemachineeventdriven)–10nseventdetectionandreaction–Max.1.3nsPWMresolution–Single,coupledandtwocoupledoperationalmodes–Upto3internal/externaleventsperSMEDDALI(digitaladdressablelightinginterface)–Interruptdrivenhardwareencoder–Busfrequency:1.2,2.4or4.8kHz–IEC60929andIEC62386compliantplus24-bitframeextension–Configurablenoiserejectionfilter–ReversepolarityonTx/Rxlines4analogcomparators–4internal4-bitreferences–1externalreference–Lessthan50nspropagationtime–Continuouscomparisoncycle8analog-to-digitalconverters(ADCs)–10-bitprecision,withoperationalamplifiertoextendresolutionto12-bitequivalent–Sequencerfunctionality–Inputimpedance:1M–Configurablegainvalue:x1orx4Integratedmicrocontroller–AdvancedSTM8®corewithHarvardarchitectureand3-stagepipeline–Max.fCPU:16MHzMemories–FlashandE2PROMwithreadwhilewrite(RWW)anderrorcorrectioncode(ECC)–Programmemory:32KbytesFlash;dataretention15yearsat85℃after10kcyclesat25℃–Datamemory:1KbytetruedataE2PROM;dataretention:15yearsat85℃after100kcyclesat85℃–RAM:2Kbytes–ROM:2KbytesClockmanagement–Internal96MHzPLL–Low-poweroscillatorcircuitforexternalcrystalresonatorordirectclockinput–Internal,user-trimmable16MHzRCandlow-power153.6kHzRCoscillators–ClocksecuritysystemwithclockmonitorBasicperipherals–Systemandauxiliarytimers–IWDG/WWDGwatchdog,AWU,ITCResetandsupplymanagement–Multiplelow-powermodes(wait,slow,autowakeup,Halt)withuserdefinableclockgating–Lowconsumptionpower-onandpowerdownresetI/O–12multifunctionbidirectionalGPIOwithhighlyrobustdesign,immuneagainstcurrentinjection–6fastdigitalinputDIGIN,withconfigurablepull-upCommunicationinterfaces–UARTasynchronouswithSWflowcontrol–I2Cmaster/slavefast-slowspeedrateOperatingtemperature–-40℃upto105℃.图1.STLUX385A内部框图基于STLUX385A的150WHID数字镇流器STEVAL-ILH007V1TheSTEVAL-ILH007V1productevaluationboardisa150Whighintensitydischarge(HID)digitalballastplatformfortestingtheSTLUX385Adigitalcontroller.ThissolutionisdesignedtodrivesodiumandmetalhalideHIDlamps.Theboardiscomposedoftwostages,thepowerfactorcorrector(PFC)andtheinverter.ThePFCisbasedonaboosttopologytocorrecttheACinputcurrentinphasewiththeACvoltagemains.Theinverterisbasedonafullbridgetopologytodrivethelamps.TheSTLUX385Adigitalcontrollerdrivesbothstages.TheSTLUX385AispartoftheST’sMASTERLUX™familyofdigitaldevicestailoredtolightingandpowerconversionapplications.TheMCUhasa16MHZCPUfrequency,32Kbytesofprogrammemoryand2KbytesofRAM.150WHID数字镇流器STEVAL-ILH007V1主要特性:VIN=185-265VEff(VIN=230V,load=150W)=90%minPF(VIN=185V;load=150W)=0.98THD(VIN=185V;load=150W)=10%Loadlamptype:sodiumormetalhalidePOUT=150WIOUT=1.6ARoHScompliant图2.150WHID数字镇流器STEVAL-ILH007V1外形图图3.150WHID数字镇流器STEVAL-ILH007V1电路图(1)图4.150WHID数字镇流器STEVAL-ILH007V1电路图(2)150WHID数字镇流器STEVAL-ILH007V1材料清单: