STK672-110-E

Overview

The STK672-110-E is a unipolar fixed-current chopper type two-phase stepping motor driver hybrid IC manufactured by onsemi. It integrates power MOSFETs in the output stage and includes built-in protection features such as overcurrent, short-circuit, and thermal shutdown. The device operates within a supply voltage range of 10 V to 42 V and supports an output current of 2.1 A. It functions reliably across an operating temperature range from -40°C to +105°C with a maximum power dissipation of 6.5 W.

Feature Summary

• Integrates power MOSFETs in the output stage for efficient driving
• Includes built-in overcurrent, short-circuit, and thermal shutdown protections
• Utilizes fixed-current chopper control method for stable operation

Applications

• Two-phase stepping motor drive systems
• Industrial automation equipment requiring precise motion control
• Appliance motor control circuits

Procurement Notes

Verify component authenticity through authorized onsemi distributors or certified partners. Confirm RoHS compliance status via official documentation before integration. Check for end-of-life notifications or discontinuance alerts, as this part may be subject to production changes. Ensure proper handling procedures are followed during storage and assembly to maintain device integrity.

Selection Notes

Select this component for applications requiring robust two-phase stepper motor control with integrated protection. Consider the SIP-12 package constraints and thermal management requirements due to the 6.5 W power dissipation rating. Evaluate compatibility with system voltage ranges between 10 V and 42 V. Assess whether the fixed-current chopper architecture meets specific torque and speed control needs.

Part Context

This component belongs to the STK672 series of stepping motor drivers designed for industrial and commercial applications. It represents a hybrid IC solution combining logic and power stages in a single package. The series is known for reliability in motor control environments where compact size and integrated protection are critical design factors.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.