DRV8824-Q1_15 Datasheet, PDF (9/30 Pages) Texas Instruments – DRV8824-Q1 Automotive Motor Controller IC

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8 Detailed Description
DRV8824-Q1
SLVSCH0 – APRIL 2014
8.1 Overview
The DRV8824-Q1 is an integrated motor driver solution for bipolar stepper motors. The device integrates two
NMOS H-bridges, current sense and regulation circuitry, and a microstepping indexer. The DRV8824-Q1 can be
powered with a supply voltage between 8.2 V and 45 V, and is capable of providing an output current up to 1.6 A
full-scale or 1.1 A rms.
A simple STEP/DIR interface allows easy interfacing to the controller circuit. The internal indexer is able to
execute high-accuracy microstepping without requiring the processor to control the current level.
The current regulation is highly configurable, with three decay modes of operation. Fast, slow, and mixed decay
can be used.
A low-power sleep mode is included which allows the system to save power when not driving the motor.
Copyright © 2014, Texas Instruments Incorporated
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