
DRV8824-Q1 Series
Automotive, 47-V, 1.6-A, bipolar stepper motor driver with current regulation & 1/32 microstepping
Manufacturer: Texas Instruments
Catalog
Automotive, 47-V, 1.6-A, bipolar stepper motor driver with current regulation & 1/32 microstepping
Key Features
• Qualified for Automotive ApplicationsAEC-Q100 Qualified with the Following Results:Device Temperature Grade 1: –40°C to +125°CDevice HBM ESD Classification Level H2Device CDM ESD Classification Level C4BPWM Microstepping Motor DriverBuilt-In Microstepping IndexerFive-Bit Winding Current Control Allows Up to32 Current LevelsLow MOSFET On-Resistance1.6-A Maximum Drive Current at 24 V, 25°CBuilt-In 3.3-V Reference Output8.2-V to 45-V Operating Supply Voltage RangeThermally Enhanced HTSSOP Surface Mount PackageQualified for Automotive ApplicationsAEC-Q100 Qualified with the Following Results:Device Temperature Grade 1: –40°C to +125°CDevice HBM ESD Classification Level H2Device CDM ESD Classification Level C4BPWM Microstepping Motor DriverBuilt-In Microstepping IndexerFive-Bit Winding Current Control Allows Up to32 Current LevelsLow MOSFET On-Resistance1.6-A Maximum Drive Current at 24 V, 25°CBuilt-In 3.3-V Reference Output8.2-V to 45-V Operating Supply Voltage RangeThermally Enhanced HTSSOP Surface Mount Package
Description
AI
The DRV8824 provides an integrated motor driver solution for printers, scanners, and other automated equipment 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 consists of N-channel power MOSFETs configured as full H-bridges to drive the motor windings. The DRV8824 is capable of driving up to 1.6 A of current from each output (with proper heatsinking, at 24 V and 25°C).
A simple STEP/DIR interface allows easy interfacing to controller circuits. Mode pins allow for configuration of the motor in full-step up to 1/32-step modes. Decay mode is configurable so that slow decay, fast decay, or mixed decay can be used. A low-power sleep mode is provided which shuts down internal circuitry to achieve very-low quiescent current draw. This sleep mode can be set using a dedicated nSLEEP pin.
Internal shutdown functions are provided for overcurrent, short circuit, undervoltage lockout, and over temperature. Fault conditions are indicated through the nFAULT pin.
The DRV8824 provides an integrated motor driver solution for printers, scanners, and other automated equipment 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 consists of N-channel power MOSFETs configured as full H-bridges to drive the motor windings. The DRV8824 is capable of driving up to 1.6 A of current from each output (with proper heatsinking, at 24 V and 25°C).
A simple STEP/DIR interface allows easy interfacing to controller circuits. Mode pins allow for configuration of the motor in full-step up to 1/32-step modes. Decay mode is configurable so that slow decay, fast decay, or mixed decay can be used. A low-power sleep mode is provided which shuts down internal circuitry to achieve very-low quiescent current draw. This sleep mode can be set using a dedicated nSLEEP pin.
Internal shutdown functions are provided for overcurrent, short circuit, undervoltage lockout, and over temperature. Fault conditions are indicated through the nFAULT pin.