Overview
The LB1945H is a PWM current control type stepping motor driver.

FEATURE
• PWM current control (external excitation)
• Load current digital selection (1-2, W1-2, and 2 phase excitation drives possible)
• Built-in upper/lower diode
• Simultaneous ON prevention function (feed-through current prevention)
• Built-in thermal shutdown circuit
• Built-in noise canceler