DRV8834PWPR Datasheet PDF - TI

●Description

●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 VM supply of 5 V. The device can support peak currents of up to 2.2 A per bridge. Current capability is reduced slightly at lower VM voltages.

●Features

●• Dual-H-Bridge Current-Control Motor Driver

●   – Capable of Driving Two DC Motors or One Stepper Motor

●• Two Control Modes:

●   – Built-In Indexer Logic With Simple STEP/DIRECTION Control and Up to 1/32-Step Microstepping

●   – PHASE/ENABLE Control, With the Ability to Drive External References for > 1/32-Step Microstepping

●• Output Current 1.5-A Continuous, 2.2-A Peak per H-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 V

●• Dynamic tBLANK and Mixed Decay Modes for Smooth Microstepping

●• PWM Winding Current Regulation and Limiting

●• Thermally Enhanced Surface-Mount Package

●Applications

●• Battery-Powered Toys

●• POS Printers

●• Video Security Cameras

●• Office Automation Machines

●• Gaming Machines

●• Robotics