DRV8824-Q1_15 Datasheet, PDF (1/30 Pages) Texas Instruments – DRV8824-Q1 Automotive Motor Controller IC

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DRV8824-Q1 Automotive Motor Controller IC
DRV8824-Q1
SLVSCH0 – APRIL 2014
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).
Device Information
ORDER NUMBER
PACKAGE
BODY SIZE
DRV8824QPWPRQ1 HTSSOP (28)
9.7 mm x 4.4 mm
4 Simplified Schematic
8.2 to 45 V
Microstepping Current Waveform
STEP/DIR ^DRV8824-Q1
1.6 A
Step size
Decay mode
Stepper
Motor Driver
1.6 A
1/32 µstep
M
+-
Increasing
Current
Decreasing
Current
Increasing
Current
Decreasing
Current
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.