TB67S142NG

Overview

The TB67S142NG is a Toshiba Semiconductor and Storage unipolar stepper motor driver IC designed for driving two-phase motors. It features an integrated power MOSFET output stage capable of delivering up to 3A continuous output current per phase with a maximum load voltage rating of 84V. The device supports full, half, and quarter step resolutions via parallel interface control. Operating specifications include a supply voltage range of 10V to 40V and a logic supply voltage of 4.75V to 5.25V. It operates within a temperature range of -20°C to +85°C and is housed in a 24-SDIP package.

Feature Summary

• Integrated power MOSFET output stage for high-current drive capability
• Supports full, half, and quarter step resolution modes
• Parallel interface for straightforward clock and direction control

Applications

• General purpose industrial automation equipment
• Office automation devices such as printers and copiers
• Precision positioning systems requiring unipolar stepper control

Procurement Notes

Verify the specific suffix (NG) against the manufacturer's official datasheet to confirm the exact package type and pinout configuration. Ensure that the application circuitry matches the specified 10V to 40V load voltage and 4.75V to 5.25V logic supply requirements. Confirm thermal management solutions are adequate for the expected power dissipation levels under continuous operation conditions.

Selection Notes

Select this component when a robust unipolar stepper driver with high voltage tolerance and moderate current capacity is required. Consider the through-hole SDIP-24 package if PCB layout constraints favor manual assembly or higher mechanical stability. Evaluate alternative packages like HZIP or WQFN if surface-mount technology or different form factors are necessary for the target design.

Part Context

This part belongs to the TB67S series of stepper motor drivers from Toshiba Semiconductor and Storage. The series provides fully integrated control and power stages for various stepping motor applications. The TB67S142NG specifically targets unipolar configurations, distinguishing it from bipolar variants within the same product family line.

Replacement Considerations

TB67S142HG offers the same electrical characteristics in a 25-HZIP package. TB67S145FTG,EL provides equivalent performance in a 48-WQFN surface-mount format.