DRV8824-Q1中文资料德州仪器数据手册PDF规格书

1 Features

1• Qualified for Automotive Applications

• AEC-Q100 Qualified with the Following Results:

– Device Temperature Grade 1: -40°C to +125°C

– Device HBM ESD Classification Level H2

– Device CDM ESD Classification Level C4B

• PWM Microstepping Motor Driver

– Built-In Microstepping Indexer

– Five-Bit Winding Current Control Allows Up to

32 Current Levels

– Low MOSFET On-Resistance

• 1.6-A Maximum Drive Current at 24 V, 25°C

• Built-In 3.3-V Reference Output

• 8.2-V to 45-V Operating Supply Voltage Range

• Thermally Enhanced HTSSOP Surface Mount

Package

2 Applications

• Automotive HVAC

• Automotive Valves

• Automotive Infotainment

3 Description

The DRV8824-Q1 provides an integrated motor driver

solution for automotive applications. The device has two H-bridge drivers and a microstepping indexer,

and is intended to drive a bipolar stepper motor. The

output driver block for each consists of N-channel

power MOSFET’s configured as full H-bridges to drive the motor windings. The DRV8824-Q1 is

capable of driving up to 1.6-A of output current (with

proper heatsinking, at 24 V and 25°C).

A simple step/direction interface allows easy

interfacing to controller circuits. Terminals allow

configuration of the motor in full-step up to 1/32-step

modes. Decay mode is programmable.

Internal shutdown functions are provided for

overcurrent protection, short circuit protection, undervoltage lockout and overtemperature.

The DRV8824-Q1 is available in a 28-terminal HTSSOP package with PowerPAD™ (Eco-friendly:

RoHS & no Sb/Br).