Toshiba Electronics (UK) Ltd Motor Drivers, Controllers TB67S142HG

The TB67S142HG is a clock-controlled PWM chopping type unipolar stepping motor driver designed for high-performance applications. It operates with a maximum supply voltage of 45V and can handle output voltages up to 84V, with a peak output current of 3.0A. This driver utilizes a BiCD process and features a PWM-controlled constant current drive, allowing for full, half, and quarter step resolutions. Key functionalities include a low on-resistance output MOSFET (0.25Oc typical), standby mode for low power consumption, and a brake mode function. The device also incorporates error detection feedback signals for overcurrent and thermal shutdown conditions, ensuring reliable operation. Additionally, it has a built-in VCC regulator for internal circuit use and allows for fixed off-time adjustments through external components. Engineers should consider the TB67S142HG for applications requiring precise control of unipolar stepping motors, particularly where high voltage and current capabilities are essential. However, attention must be paid to thermal conditions during operation to prevent potential overheating issues.