Stepper Motor Driver DRV8825See More
The DRV8825 provides an integrated motor driver solution for printers, scanners, and other automated equipment applications. The device has two H-bridge drivers, and can drive a bipolar stepper motor or two DC motors. The output driver block for each consists of N-channel power MOSFET’s configured as full H-bridges to drive the motor windings. The DRV8825 can supply up to 2.5-A peak or 1.75-A RMS output current (with proper heatsinking at 24 V and 25°C).
A simple step/direction interface allows easy interfacing to controller circuits. Pins 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, under-voltage lockout and overtemperature. The DRV8825 is available in a 28-pin HTSSOP package with PowerPAD (Eco-friendly: RoHS & no Sb/Br).
Features
PWM Microstepping Motor Driver
Built-In Microstepping Indexer
Five-Bit Winding Current Control Allows
Up to 32 Current Levels
Low MOSFET On-Resistance
2.5-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 Surface Mount Package
NOTE: When using a 24V supply to power low amperage steppers (<1.5A), micro-steps will be 'cogged over' if the DECAY pin is not set to FAST mode. See the datasheet for details on the DECAY pin.
Applications
