TB67S158NG

Overview

The TB67S158NG is a bipolar stepping motor driver IC manufactured by Toshiba Semiconductor and Storage. It features an integrated control and power stage designed for driving two-phase stepper motors. The device supports a maximum load voltage of 80V and delivers a continuous output current of 1.5A per phase. It operates within a junction temperature range of -20°C to 150°C and accepts a supply voltage between 4.75V and 5.25V. The component utilizes a parallel interface and offers selectable step resolutions including full, half, and quarter steps. It is housed in a 24-SDIP package with through-hole mounting capabilities.

Feature Summary

• Integrates both logic control and power MOSFET stages into a single monolithic circuit
• Supports selectable micro-stepping resolution modes for smooth motion control
• Includes built-in protection mechanisms against overcurrent and thermal overload conditions

Applications

• Industrial automation equipment requiring precise positioning
• Office automation devices such as printers and scanners
• General-purpose motion control systems

Procurement Notes

Verify the specific suffix and package variant when ordering to ensure compatibility with existing board layouts. Confirm that the required operating temperature range aligns with the specified junction limits. Check for RoHS compliance status if environmental regulations apply to the final assembly. Ensure the supply voltage matches the internal logic requirements before integration.

Selection Notes

Select this component when a robust bipolar stepper driver with moderate current capacity is required. Consider the 80V voltage rating for applications involving higher inductive loads. Evaluate the thermal performance characteristics relative to the expected duty cycle and ambient conditions. Compare the physical dimensions of the SDIP package against available PCB space constraints.

Part Context

This part belongs to Toshiba's dedicated stepping motor driver series, which focuses on providing complete drive solutions without external power transistors. The TB67S158NG represents a standard offering within this family, balancing performance with ease of implementation for general industrial applications.

Replacement Considerations

TB67S149HG