
DRV8834 Series
11-V, 1.5-A, dual H-bridge or stepper motor driver with 1/32 microstep indexer
Manufacturer: Texas Instruments
Catalog
11-V, 1.5-A, dual H-bridge or stepper motor driver with 1/32 microstep indexer
Key Features
• Dual-H-Bridge Current-Control Motor DriverCapable of Driving Two DC Motors or OneStepper MotorTwo Control Modes:Built-In Indexer Logic With SimpleSTEP/DIRECTION Control and Up to1/32-Step MicrosteppingPHASE/ENABLE Control, With the Ability toDrive External References for > 1/32-StepMicrosteppingOutput Current 1.5-A Continuous, 2.2-A Peak perH-Bridge (at VM= 5 V, 25°C)Low RDS(ON): 305-mΩ HS + LS(at VM= 5 V, 25°C)Wide Power Supply Voltage Range:2.5 V to 10.8 VDynamic tBLANKand Mixed Decay Modes forSmooth MicrosteppingPWM Winding Current Regulation and LimitingThermally Enhanced Surface-Mount PackageDual-H-Bridge Current-Control Motor DriverCapable of Driving Two DC Motors or OneStepper MotorTwo Control Modes:Built-In Indexer Logic With SimpleSTEP/DIRECTION Control and Up to1/32-Step MicrosteppingPHASE/ENABLE Control, With the Ability toDrive External References for > 1/32-StepMicrosteppingOutput Current 1.5-A Continuous, 2.2-A Peak perH-Bridge (at VM= 5 V, 25°C)Low RDS(ON): 305-mΩ HS + LS(at VM= 5 V, 25°C)Wide Power Supply Voltage Range:2.5 V to 10.8 VDynamic tBLANKand Mixed Decay Modes forSmooth MicrosteppingPWM Winding Current Regulation and LimitingThermally Enhanced Surface-Mount Package
Description
AI
The DRV8834 provides a flexible motor driver solution for toys, printers, cameras, and other mechatronic applications. The device has two H-bridge drivers, and is intended to drive a bipolar stepper motor or two DC motors.
The output driver block of each H-bridge consists of N-channel power MOSFETs configured as an H-bridge to drive the motor windings. Each H-bridge includes circuitry to regulate or limit the winding current.
With proper PCB design, each H-bridge of the DRV8834 can driving up to 1.5-A RMS (or DC) continuously, at 25°C with a VMsupply of 5 V. The device can support peak currents of up to 2.2 A per bridge. Current capability is reduced slightly at lower VMvoltages.
Internal shutdown functions with a fault output pin are provided for overcurrent protection, short-circuit protection, undervoltage lockout and overtemperature. A low-power sleep mode is also provided.
The DRV8834 is packaged in a 24-pin HTSSOP or VQFN package with PowerPAD™ (Eco-friendly: RoHS & no Sb/Br).
The DRV8834 provides a flexible motor driver solution for toys, printers, cameras, and other mechatronic applications. The device has two H-bridge drivers, and is intended to drive a bipolar stepper motor or two DC motors.
The output driver block of each H-bridge consists of N-channel power MOSFETs configured as an H-bridge to drive the motor windings. Each H-bridge includes circuitry to regulate or limit the winding current.
With proper PCB design, each H-bridge of the DRV8834 can driving up to 1.5-A RMS (or DC) continuously, at 25°C with a VMsupply of 5 V. The device can support peak currents of up to 2.2 A per bridge. Current capability is reduced slightly at lower VMvoltages.
Internal shutdown functions with a fault output pin are provided for overcurrent protection, short-circuit protection, undervoltage lockout and overtemperature. A low-power sleep mode is also provided.
The DRV8834 is packaged in a 24-pin HTSSOP or VQFN package with PowerPAD™ (Eco-friendly: RoHS & no Sb/Br).