STK672-640C-E

Overview

The STK672-640C-E is a hybrid integrated circuit designed as a unipolar, two-phase stepper motor driver featuring PWM current control. It integrates fully independent power MOSFETs for parallel output stages within a 19-SIP package. The device supports maximum operating temperatures up to +105°C and includes built-in opened motor pin detection capabilities.

Feature Summary

• Unipolar two-phase stepper motor driver with PWM current control
• Built-in opened motor pin detection functionality
• Fully integrated control and power stage with independent power MOSFETs

Applications

• Office photocopiers
• Printers

Procurement Notes

Verify component status carefully as this part may be obsolete or discontinued in certain regions. Confirm RoHS compliance details directly with the manufacturer or authorized distributors before procurement. Ensure the specific suffix matches project requirements. Check for valid replacement options if supply chain continuity is critical for long-term production cycles.

Selection Notes

Select this component for applications requiring unipolar stepper motor control with integrated power stages. Verify voltage and current ratings against motor specifications. Consider thermal dissipation requirements given the SIP packaging. Ensure compatibility with existing control logic levels. Evaluate availability constraints due to potential obsolescence status in the market.

Part Context

This component belongs to the STK672 series of hybrid ICs from onsemi. These devices are specialized for motion control applications. The series typically offers integrated solutions for driving stepper motors. This specific model focuses on unipolar configurations. It represents a compact solution for office automation hardware.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official onsemi resources for potential cross-references. Verify functional equivalence if considering alternative drivers. Ensure pinout compatibility if substituting components in existing designs.