Transcription of DRV8821 Dual Stepper Motor Controller and Driver
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DRV8821 Dual Stepper Motor Controller and Driver
ProductFolderSample &BuyTechnicalDocumentsTools &SoftwareSupport &CommunityDRV8821 SLVS912J JANUARY2009 REVISEDJANUARY2016 DRV8821 dual StepperMotorControllerand Driver1 Features3 DescriptionThe DRV8821providesa dual microstepping-capable1 DualPWMM icrosteppingMotorDriversteppermotorcontr oller/driversolutionfor printers, Built-InMicrosteppingIndexersscanners,an dotherofficeautomationequipment Up to Windingapplications. Three-BitWindingCurrentControlAllowsup toTwo the motordriverblocksemploy Low MOSFETOn-ResistanceN-channelpowerMOSFET sconfiguredas an H- SelectableSlowor MixedDecayModesbridgeto drivethe motorwindings. 8-V to 32-VOperatingSupplyVoltageRangeA simplestep/directioninterfaceallowseasy InternalChargePumpfor GateDriveinterfacingto the motorin full-step,half-step, SimpleStep/DirectionInterfacequarter-ste p,or eighthstepmodes,and the selectionof slowor mixeddecaymodes.
DRV8821 SLVS912J–JANUARY 2009–REVISED JANUARY 2016 www.ti.com Pin Functions (continued) PIN I/O(1) DESCRIPTION EXTERNAL COMPONENTS OR CONNECTIONS NAME NO. BOUT1 48 O Bridge B output 1 Connect to second coil of bipolar stepper motor AB, or DC motor
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