A3909-Datasheet

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1、A3909DualFullBridgeMotorDriverFeaturesandBenefitsDescription•LowRDS(on)outputsTheA3909isadualfullbridgemotordriver,designedfor•DrivestwoDCmotorsorsinglesteppermotor12Vmediumpowerapplications.Theoutputsareratedfor•Lowpowerstandby(Sleep)modewithzerocurrentdrainoper

2、ationthroughapowersupplyrangeof4to18V,and•Thermalshutdownprotectioncapableofupto1Aperphase.•Paralleloperationoptionfor1.8A,singleDCmotor•Overcurrentprotection:Parallelingtheoutputsispossibleforhigheramperagesingle▫OutputtosupplyshortDCmotorapplications.▫OutputtoG

3、NDshortThefourinputs(IN1toIN4)cancontrolDCmotorsinforward,▫Outputloadshortreverse,brake,andcoastmodes,orabipolarsteppermotorinfull-andhalf-stepmodes.TheA3909issuppliedina10-pinMSOPpackagewithexposedPackages:thermalpad(suffixLY)anda10-pinSSOP(suffixLN)forwavesolde

4、rapplications.Bothpackagesarelead(Pb)freewith100%matte-tinleadframeplating.10-pinMSOPwithexposedthermalpad10-pinSSOP(LYpackage)(LNpackage)NottoscaleFunctionalBlockDiagramLoadSupplyLoadSupplyVBBVBBControlIN1LogicOUT1OUT1TSDDisableUVLOOCPOUT2OUT2IN2VBBGNDGNDVBBCont

5、rolIN3LogicOUT3OUT3TSDDisableUVLOOCPOUT4OUT4IN4VBBGNDPADConfigurationConfigurationfordrivingforparalleloperationLYpackage2DCmotorsat1.8AA3909-DSA3909DualFullBridgeMotorDriverSelectionGuidePartNumberPackagePackingA3909GLNx-T*10-pinSSOP3000piecesper13-in.reel10-pin

6、MSOPwithA3909GLYTR-T4000piecesper13-in.reelexposedthermalpad*ContactAllegroSalesforavailabilityofthispackageoption.AbsoluteMaximumRatings*CharacteristicSymbolNotesRatingUnitSupplyVoltageVBB18VLogicInputVoltageRangeVIN–0.3to6VOutputCurrentIOUT1VOutputVoltageVOUT–0

7、.3toVBB+1VOperatingAmbientTemperatureTAGtemperaturerange–40to105ºCMaximumJunctionTemperatureTJ(max)150ºCStorageTemperatureTstg–55to150ºCThermalCharacteristicsmayrequirederatingatmaximumconditions,seeapplicationinformationCharacteristicSymbolTestConditions*ValueUn

8、itLNpackage(estimated),on1-layerPCBwithcopperlimited130ºC/WtopinareaPackageThermalResistanceRθJALYpackage,on2-layerPCBwith2.260in.2ofcopperarea48ºC/Weachside*A