The DRV8825 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 DRV8825 is
capable of driving up to 2.5 A of current from each output (with proper heat sinking, 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, under voltage
lockout and over temperature. Fault conditions are indicated via the nFAULT pin.
The DRV8825 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 DRV8825 is
capable of driving up to 2.5 A of current from each output (with proper heat sinking, 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, under voltage
lockout and over temperature. Fault conditions are indicated via the nFAULT pin.