Overview
The STK672-740B-E is a hybrid IC for use as a unipolar, 2-phase stepping motor driver with PWM current control.

Features
• Built-in motor terminal open detection function (output current OFF).
• Built-in overcurrent detection function (output current OFF).
• Built-in overheat detection function (output current OFF).
• FAULT1 signal (active low) is output when any of motor terminal open, overcurrent, or overheat is detected. The FAULT2 signal is used to output the result of activation of protection circuit detection at 3 levels.
• Built-in power on reset function.
• Phase signal input driver activated with an active Low and incorporates a simultaneous ON prevention function.
• Supports schmitt input for 2.5V high level input.
• Incorporating a current detection resistor (0.089Ω: resistor tolerance ±2%), motor current can be set using two external resistors.
• Provides the output current cutoff ENABLE pin.

Applications
• Office photocopiers, printers, etc.