控制器 驱动器 lmd18200tnew

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1、LMD18200www.ti.comSNVS091E–MAY2004–REVISEDFEBRUARY2011LMD182003A,55VH-BridgeCheckforSamples:LMD182001FEATURES•Internalchargepumpwithexternalbootstrapcapability2•Deliversupto3Acontinuousoutput•Operatesatsupplyvoltagesupto55VAPPLICATIONS•LowRDS(ON)typically0.33Ωperswitchat3A•DCandsteppermotordriv

2、es•TTLandCMOScompatibleinputs•Positionandvelocityservomechanisms•No“shoot-through”current•Factoryautomationrobots•Thermalwarningflagoutputat145°C•Numericallycontrolledmachinery•Thermalshutdown(outputsoff)at170°C•Computerprintersandplotters•Internalclampdiodes•ShortedloadprotectionDESCRIPTIONThe

3、LMD18200isa3AH-Bridgedesignedformotioncontrolapplications.Thedeviceisbuiltusingamulti-technologyprocesswhichcombinesbipolarandCMOScontrolcircuitrywithDMOSpowerdevicesonthesamemonolithicstructure.IdealfordrivingDCandsteppermotors;theLMD18200accommodatespeakoutputcurrentsupto6A.Aninnovativecircui

4、twhichfacilitateslow-losssensingoftheoutputcurrenthasbeenimplemented.FunctionalDiagramFigure1.FunctionalBlockDiagramofLMD182001Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexasInstrumentssemiconductorproductsanddisclaimerstheretoappear

5、sattheendofthisdatasheet.2Alltrademarksarethepropertyoftheirrespectiveowners.PRODUCTIONDATAinformationiscurrentasofpublicationdate.Copyright©2004–2011,TexasInstrumentsIncorporatedProductsconformtospecificationsperthetermsoftheTexasInstrumentsstandardwarranty.Productionprocessingdoesnotnecessari

6、lyincludetestingofallparameters.LMD18200SNVS091E–MAY2004–REVISEDFEBRUARY2011www.ti.comConnectionDiagramandOrderingInformationFigure2.11-LeadTO-220PackageTopViewThesedeviceshavelimitedbuilt-inESDprotection.Theleadsshouldbeshortedtogetherorthedeviceplacedinconductivefoamduringstorageorhandlingtop

7、reventelectrostaticdamagetotheMOSgates.(1)AbsoluteMaximumRatingsTotalSupplyVoltage(VS,Pin6)60VVoltageatPins3,4,5,8and912VVoltageatBootstrapPins(Pins1and11)VOUT+16VPeakOutputCurrent(200ms)6AContinuousOutputCurrent(2)3APowerDissipat