STK672-340-E

Overview

The STK672-340-E is a unipolar fixed-current chopper type 2-phase stepping motor driver hybrid IC manufactured by onsemi. It integrates power MOSFETs in the output stage and features a built-in constant current control circuit. The device supports a maximum collector current of 3.6A and operates with a supply voltage range typically between 10V and 45V. It utilizes a 12-pin SIP package for through-hole mounting.

Feature Summary

• Integrates power MOSFETs in the output stage for efficient driving
• Features built-in constant current control circuitry
• Designed as a unipolar fixed-current chopper type driver

Applications

• 2-phase stepping motor control systems
• Hybrid stepper motor drive applications
• Industrial automation equipment requiring unipolar motor drivers

Procurement Notes

Verify component status carefully as sources indicate this part may be discontinued or no longer manufactured by onsemi. Check availability through authorized distributors like Rochester Electronics or DigiKey, noting potential lead times and stock variations. Confirm package integrity and authenticity upon receipt.

Selection Notes

Select this component for applications requiring a dedicated unipolar stepper motor driver with integrated power stages. Ensure the load current does not exceed the 3.6A rating and that the supply voltage aligns with the 10V to 45V operating range. Verify compatibility with the 2-phase hybrid motor configuration before integration.

Part Context

This component belongs to the STK672 series of stepper motor drivers from onsemi. These devices are designed to simplify the interface between logic controllers and stepper motors by integrating drive electronics directly into a single hybrid IC package, reducing external component count.

Replacement Considerations

Public confirmed substitute part numbers were not identified in the provided source material. Users should consult official onsemi documentation or distributor databases for verified cross-references.