Overview

The STK672-010 is a 4-phase stepping motor driver IC that adopts power MOSFET for its output stage and that uses a unipolar fixed-current chopper scheme. Since the STK672-010 includes a built-in 4-phase distribution controller, the stepping motor driver circuit and the control scheme can be simplified, and the stepping motor driver circuit structure can be standardized. The STK672-010 provides high torque, low vibration, and rapid response based on a W1-2 phase excitation drive scheme. The motor current is voluntary set from externals. Since, compared to the earlier STK6770 Series, the STK672-010 has a smaller package size and reduced drive power

dissipation (reduced by 70 over previous products), it provides a wider operating power supply voltage range.