Bipolar stepping motor driver employs a PWM chopper

Toshiba TC78H670FTG Bipolar Stepping Motor Driver exhibits built-in dual H-Bridges, 2.5V to 16V power supply operating voltage, and 2A output current (maximum). This motor driver is a two-phase bipolar stepping motor driver, which employs a PWM chopper and includes DMOS with low on-resistance in output transistors. The stepping motor driver enables full, half, quarter, 1/8, 1/16, 1/32, 1/64, and 1/128 step operations. Furthermore, this driver provides a built-in sense resistor less current control architecture (advanced current detection system) and VCC regulator for an internal circuit.

The bipolar stepping motor driver offers thermal shutdown, over-current shutdown, motor-load open, and UVLO error detect functions with flag output function. This motor driver comes in a small QFN package with a thermal pad (16 pins).