STK672-630A-E

Overview

The STK672-630A-E is a hybrid integrated circuit designed as a fully unipolar, two-phase stepper motor driver with PWM current control. It integrates half-bridge control and internal power MOSFETs rated for 2.2A continuous output. The device operates on a supply voltage of 4.75V to 5.25V and supports load voltages from 10V to 42V. Key electrical parameters include a maximum collector-emitter voltage of 42V, a typical switching frequency of 45kHz, and an operating temperature range of 0°C to +105°C. It utilizes a 19-pin SIP package measuring 29.2 x 14.4 x 4.5mm.

Feature Summary

• Integrates half-bridge control with internal power MOSFETs for consistent current delivery
• Features built-in overcurrent detection function for protection
• Supports PWM current control for precise stepper motor operation

Applications

• Office photocopiers
• Printers

Procurement Notes

Verify the specific suffix 'E' against official documentation to confirm exact revision status. Confirm that the component meets all required environmental specifications for the target application. Ensure compatibility with existing PCB footprints and thermal management solutions before finalizing procurement decisions.

Selection Notes

Select this component for applications requiring a fully integrated unipolar stepper motor driver solution. It is suitable for systems needing PWM current control and built-in protection features. Consider the 2.2A continuous output capability and 42V voltage rating when matching motor requirements.

Part Context

This part belongs to the STK672 series of hybrid ICs manufactured by onsemi. These devices are specifically engineered for driving unipolar, two-phase stepping motors. The series provides integrated control and power stages, simplifying design complexity for motion control applications in office equipment.

Replacement Considerations

The STK672-630AN-E is a related variant within the same series. Verify pinout compatibility and specific parameter differences before substitution.