Overview

The LB1945D is a PWM current control stepping motor driver that uses a bipolar drive technique. It is optimal for use with the carriage and paper feed stepping motors used in printers.

Functions and Features

• PWM current control (external clock)

• Digital load current selection function (supports 1-2, W1-2, and 2-phase excitation)

• Built-in high and low side diodes

• Simultaneous on state prevention function (through-current prevention)

• Built-in thermal shutdown circuit

• Noise canceling function