STK672-632A-E

Overview

The STK672-632A-E is a unipolar stepper motor driver from onsemi, utilizing Power MOSFET technology. It operates within a supply voltage range of 4.75 V to 5.25 V and delivers an output current of 2.2 A. The device supports step resolutions of 1 and 1/2. Designed for general-purpose applications, it integrates protection features including overcurrent detection and overheat detection functions that trigger an active low FAULT signal.

Feature Summary

• Integrates built-in overcurrent detection functionality
• Includes overheat detection mechanism with automatic output shutdown
• Provides active low FAULT signal output for status monitoring

Applications

• General purpose stepper motor control
• Unipolar motor driving systems

Procurement Notes

Verify the specific suffix 'A' against official datasheets to confirm pinout and electrical characteristics, as variations exist within the STK672 series. Confirm availability status through authorized distributors, as some related models in this family may be discontinued or have limited supply. Ensure compatibility with 5V logic levels and unipolar motor configurations before procurement.

Selection Notes

Select this component for applications requiring a dedicated unipolar stepper driver with integrated protection. Compare against other STK672 variants based on required output current ratings and package types. Ensure the design accommodates the specified 4.75 V to 5.25 V supply voltage range and utilizes appropriate heat dissipation methods given the power dissipation capabilities.

Part Context

This part belongs to the STK672 series of stepper motor drivers manufactured by onsemi (formerly SANYO Semiconductor). The series includes various models with different output currents and package options, such as SIP and surface-mount configurations. These drivers are designed for reliable operation in industrial and consumer electronics environments requiring precise motor control.

Replacement Considerations

STK672-632AN-E is a variant within the same series. Verify if the AN suffix denotes a specific package or thermal characteristic difference compared to the A suffix. Other models like STK672-410 or STK672-630AN-E may serve as alternatives but require checking output current and voltage specifications.