STK672-080-E

Overview

The STK672-080-E is a thick-film hybrid integrated circuit designed as a unipolar, two-phase stepper motor driver with PWM current control. It features an output current capability of 2.8 A and operates within a supply voltage range of 10 V to 45 V. The device dissipates up to 8 W of power and functions at temperatures between 0°C and +105°C. It includes built-in overcurrent and overheat detection with fault signaling.

Feature Summary

• Integrates PWM current control for precise unipolar two-phase stepper motor operation
• Includes built-in protection mechanisms against overcurrent and overheating conditions
• Outputs active-low fault signals when protective thresholds are exceeded

Applications

• Office photocopiers
• Printers
• General-purpose stepper motor control systems

Procurement Notes

Verify component authenticity through authorized onsemi channels due to limited availability status. Confirm RoHS compliance details prior to integration. Ensure thermal management solutions support the specified 8 W power dissipation rating. Validate operating temperature ranges against final application environmental constraints before procurement.

Selection Notes

Select this component for applications requiring robust unipolar stepper motor driving with integrated thermal protection. Consider the SIP package form factor for through-hole mounting requirements. Evaluate the 2.8 A output capacity against specific motor load demands. Verify compatibility with existing control logic levels and enable pin configurations.

Part Context

This part belongs to the STK672 series of thick-film hybrid ICs from onsemi. These devices are engineered specifically for high-reliability motor control applications. The series typically integrates power MOSFETs with control logic in a single package to simplify system design and reduce board space requirements for industrial automation tasks.

Replacement Considerations

Check for compatible pins with the STK672-732AN-E. Verify if alternative models meet the same 2.8 A output current and 45 V maximum supply voltage specifications. Ensure replacement parts maintain identical unipolar drive functionality and protection features.