DRV8824-Q1 Texas instruments

DRV8824-Q1

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DRV8824-Q1

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Описание

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).

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

Number of full bridges	2
Vs (min) (V)	8.2
Vs ABS (max) (V)	47
Full-scale current (A)	1.6
Peak output current (A)	1.8
RDS(ON) (HS + LS) (mΩ)	1280
Sleep current (µA)	10
Control mode	STEP/DIR
Control interface	Hardware (GPIO)
Microstepping levels	32
Features	Current Regulation
Rating	Automotive
Operating temperature range (°C)	-40 to 125