STK672-523-E

Overview

The STK672-523-E is a hybrid integrated circuit designed as a unipolar, two-phase stepping motor driver. It integrates fully functional control and power stages within a single package. The device supports both full-step and half-step driving modes for precise motion control applications. It features built-in PWM current control to regulate motor performance and efficiency. The component utilizes a Single In-line Package (SIP) configuration suitable for through-hole mounting on printed circuit boards.

Feature Summary

• Integrates complete control logic and power output stages for stepper motors
• Supports unipolar two-phase operation with full and half-step modes
• Includes internal Pulse Width Modulation (PWM) current regulation

Applications

• Stepping motor speed control systems
• Industrial automation equipment requiring precise positioning
• Motion control modules in manufacturing machinery

Procurement Notes

Verify the specific datasheet revision and RoHS compliance status directly with onsemi or authorized distributors before procurement. Confirm that the SIP package dimensions and pinout align with the target PCB layout. Ensure thermal management requirements are met for the intended operating environment. Check for any recent Product Change Notifications (PCNs) affecting component specifications or manufacturing locations.

Selection Notes

Select this component when a monolithic solution for unipolar stepper motors is required. It is appropriate for designs needing integrated PWM current limiting without external discrete drivers. Consider the SIP package constraints and maximum voltage ratings relative to the motor coil specifications. Evaluate the thermal dissipation capabilities of the package against the expected load conditions.

Part Context

This part belongs to the STK672 series of hybrid ICs from onsemi. The series is engineered specifically for stepping motor drive applications. These components consolidate complex driver circuits into compact packages to simplify system design. The STK672-523-E represents a specific variant within this family tailored for unipolar configurations.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing driver architectures if considering alternative models from other manufacturers.