DRV8818PWP

The DRV8818PWP is a 2.5A bipolar Stepper Motor Driver with on-chip 1/8 microstepping indexer. This device has two H-bridge drivers, as well as microstepping indexer logic to control a stepper motor. The output driver block for each consists of N-channel power MOSFETs configured as full H-bridges to drive the motor windings. A simple STEP/DIRECTION interface allows easy interfacing to controller circuits. The mode pins allow for configuration of the motor in full-step, half-step, quarter-step or eighth-step modes. Decay mode and PWM off time are programmable. Internal shutdown functions are provided for over-current protection, short-circuit protection, under-voltage lockout and over-temperature.