DRV8825 motor driver

DRV8825 stepper driverMax current 2.5A

The DRV8825 provides an integrated motor driver1• PWM Microstepping Stepper Motor Driversolution for printers, scanners, and other automated– Built-In Microstepping Indexer equipment applications. The device has two H-bridge– Up to 1/32 Microstepping drivers and a microstepping indexer, and is intendedto drive a bipolar stepper motor. The output driver • Multiple Decay Modesblock consists of N-channel power MOSFET’s– Mixed Decay configured as full H-bridges to drive the motor– Slow Decay windings. The DRV8825 is capable of driving up to– Fast Decay 2.5 A of current from each output (with proper heatsinking, at 24 V and 25°C). • 8.2-V to 45-V Operating Supply Voltage Range• 2.5-A Maximum Drive Current at 24 V and A simple STEP/DIR interface allows easy interfacingT to controller circuits. Mode pins allow for configuration A = 25°Cof the motor in full-step up to 1/32-step modes. Decay• Simple STEP/DIR Interface mode is configurable so that slow decay, fast decay,• Low Current Sleep Mode or mixed decay can be used. A low-power sleep• Built-In 3.3-V Reference Output mode is provided which shuts down internal circuitryto achieve very low quiescent current draw. This • Small Package and Footprint sleep mode can be set using a dedicated nSLEEP• Protection Features pin.– Overcurrent Protection (OCP) Internal shutdown functions are provided for– Thermal Shutdown (TSD) overcurrent, short circuit, under voltage lockout and– VM Undervoltage Lockout (UVLO) over temperature. Fault conditions are indicated viathe nFAULT pin.– Fault Condition Indication Pin (nFAULT)