DRV8818 2.5A Bipolar Stepper Motor Driver The DRV8818 provides an integrated stepper motor driver solution for printers, scanners, and other automatic equipment applications. This device has 2 H-bridge drivers and microstepping indexer logic to control a stepper motor. Each output driver block contains N-channel power MOSFETs configured as a full H-bridge to drive the motor windings. A simple step/direction interface allows easy connection to the controller circuit. Pins support configuring the motor in full-step, half-step, quarter-step, or eighth-step mode. Both the decay mode and pulse width modulation (PWM) off time are programmable. An internal shutdown function is provided for overcurrent protection, short-circuit protection, undervoltage lockout, and overtemperature protection.
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