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1、STSTLUX385A100W街燈照明解決方案時(shí)間：2016-03-2910:45:50??????作者：ST??????來(lái)源：中電網(wǎng)ST公司的STLUX385A是集成了多達(dá)6個(gè)可編程PWM發(fā)生器,96MHzPLL和數(shù)字可尋址照明接口(DALI),PWM分辨率為1.3ns,CPU頻率為16MHz,總線頻率為1.2,2.4或4.8kHz,器件具有多種架構(gòu)和應(yīng)用,包括驅(qū)動(dòng)多個(gè)LED串的降壓轉(zhuǎn)換器,用于PFC的升壓轉(zhuǎn)換器,用于大功率可調(diào)光的半橋諧振轉(zhuǎn)換器和用于HID燈鎮(zhèn)流器的全橋控制器.本文介紹了STLUX385A主要特性,框圖,

2、以及100W街燈照明解決方案STEVAL-ILL066V1主要特性,框土,電路圖和材料清單.TheSTLUX?familyofcontrollersisapartoftheSTMicroelectronics?digitaldevicestailoredforlightingandpowerconversionapplications.TheSTLUXcontrollershavebeensuccessfullyintegratedinawiderangeofarchitecturesandapplications,star

3、tingfromsimplebuckconvertersfordrivingmultipleLEDstrings,boostforpowerfactorcorrections,half-bridgeresonantconvertersforhighpowerdimmableLEDstringsanduptofullbridgecontrollersforHIDlampballasts.STLUX385A主要特性:Upto6programmablePWMgenerators(SMEDs-“StateMachineEventDr

4、iven”)?10nseventdetectionandreactionMax.1.3nsPWMresolutionSingle,coupledandtwocoupledoperationalmodesUpto3internal/externaleventsperSMEDDALI(digitaladdressablelightinginterface)?InterruptdrivenhardwareencoderBusfrequency:1.2,2.4or4.8kHzIEC60929andIEC62386compliantp

5、lus24-bitframeextensionConfigurablenoiserejectionfilterReversepolarityonTx/Rxlines4analogcomparators?4internal4-bitreferences1externalreferenceLessthan50nspropagationtimeContinuouscomparisoncycleADCs(upto8channels)?10-bitprecision,withoperationalamplifiertoextendre

6、solutionto12-bitequivalentSequencerfunctionalityInputimpedance:1MΩConfigurablegainvalue:x1andx4Integratedmicrocontroller?AdvancedSTM8??corewithHarvardarchitectureand3-stagepipelineMax.fCPU?:16MHzMultiplelowpowermodesMemories?FlashandE2?PROMwithreadwhilewrite(RWW)an

7、derrorcorrectioncode(ECC)Programmemory:32KbytesFlash;dataretention15yearsat85?℃after10kcyclesat25℃Datamemory:1KbytetruedataE2?PROM;dataretention:15yearsat85℃after100kcyclesat85℃RAM:2KbytesClockmanagement?Internal96MHzPLLLowpoweroscillatorcircuitforexternalcrystalre

8、sonatorordirectclockinputInternal,user-trimmable16MHzRCandlowpower153.6kHzRCoscillatorsClocksecuritysystemwithclockmonitorBasicperipherals?System