双音道低电压功率放大电路

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1、BL59A66ShanghaiBellingCo.,Ltd.ShanghaiBellingCo.,Ltd.PhotoSmokeDetectorControlICwithhushBL59A66DATASHEET2004.7Page1of8BL59A66ShanghaiBellingCo.,Ltd.Introduction:TheBL59A66isalow-currentBiCMOScircuitprovidingallofthefeaturesforaphotoelectrictypesmokedetector.BL59A66canbeusedinconjunctionwithani

2、nfraredphotoelectricchambertosensescatteredlightfromsmokeparticles.Specialfeaturesareincorporatedinthedesigntofacilitatecalibrationandtestingofthefinisheddetector.Features:ò6Vto12VOperatingVoltageRangeòSupplyVoltagecurrent：lessthan10uAòInternalTimer&ControlforReducedSensitivityòOperatingTemper

3、atureRange：－25～75℃òPower-ONResetòESDandLatch-upProtectionòPiezoelectricHornDriveròInterconnectUpto50DetectorsòContinuousModulatedToneOutputForaLocalorRemoteAlarmConditionòPackageType:DIP16;SOP16PinConfiguration:Fig.1PinConfiguration2004.7Page2of8BL59A66ShanghaiBellingCo.,Ltd.MAXIMUMRATINGS(Vol

4、tagereferencedtoVss)SymbolParameterRangeUnitＶDDSupplyVoltage-0.5～＋15VＶINInputVoltage-0.3～ＶDD＋0.3VIINInputCurrent10mATAOperatingTemperature-25～+75℃ＴstgStorageTemperature-55～+125℃ＴLWeldingTemperature260℃PINFUNCTIONALDESCRIPTIONPinNo.PinsymbolInput/FunctionDescriptionOutput1,2C1,C2Exteriorcapacit

5、orAcapacitorconnectedtothepinsdeterminesconnectedtothethegainofthephotoamplifier.pins3DETECTInputInputtothephotoThispinconnectsthecathodeofthephotoamplifierdiode.Thephotodiodeisoperatedatzerobias.4STROBEOutputRegulatedvoltageThepinistheRegulatedvoltageOutput.TheOutputvalueisVdd-5V.5,14Vdd,VSSP

6、ower/GndPowersupply6IREDOutputSignaloutputThispinisaoutput,whichprovidesapulsedbasecurrentfortheexternalnpntransistor,whichdrivestheIRemitter.7I/OAconnectionatthispinallowsmultiplesmokedetectors(lessthan50)tobeinterconnected.8,9BRASS,OutputPiezoelectricTheseTWOpinsareusedinconjunctionwithaSILV

7、ERTransducerOutputpiezoelectrictransducer.10FEEDBACKInuputPiezoelectricThepinisusedinconjunctionwithaTransducerInputpiezoelectrictransducerfeedbackelectrode.11LEDOutputSignaloutputThisopen-drainNMOSoutputisusedtodirectlydriveavisibleLED