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PT2477 45V/1.6A, Micro Stepping Motor Driver
DESCRIPTION
The PT2477 is a monolith integrated motor driver designed for printers, scanners, and home or office automated equipment. The dual H-bridge drivers are consisting by all of N-channel MOSFETs, and designed to drive a 4-wires bipolar stepper motor. The output driving current of the PT2477 allows up to 1.6 Amps (mounted on dual layer PCB with proper heatsinking, VM=24V, TA=25°C).
To simplified control interface, the STEP and DIR pins allows easy communicates with micro controller, Three Mode Select pins allow for configuration the micro steps from full-step divides to 1/32 micro-step. 3 kind of winding current decay modes are configurable to keeps motor not missing step and low current ripple.