STK672-630CN-E

Overview

The STK672-630CN-E is a hybrid integrated circuit designed as a unipolar, two-phase stepper motor driver. It utilizes Power MOSFET technology to provide fully integrated drive capabilities within a 19-pin Single Inline Package (SIP). The component supports PWM current control for precise motor management. Key electrical specifications include a maximum collector current of 2.2A and a maximum collector-emitter voltage of 46V. It operates with a supply voltage range of 4.75V to 5.25V and features a typical switching frequency of 45kHz. The device is rated for operation between 0°C and +105°C.

Feature Summary

• Integrates Power MOSFET output stages for unipolar stepper motor driving
• Incorporates built-in PWM current control mechanisms
• Provides a fully integrated solution in a compact SIP form factor

Applications

• Office photocopiers
• Printers

Procurement Notes

Verify the specific suffix CN against official onsemi documentation to confirm pinout and thermal characteristics. Ensure the application environment remains within the specified 0°C to +105°C operating temperature range. Confirm that the 2.2A current rating aligns with the connected stepper motor requirements. Check for any recent Product Change Notifications regarding package or material updates.

Selection Notes

Select this component for applications requiring a single-chip solution for unipolar stepper motors. It is suitable where space constraints favor a SIP package over surface-mount alternatives. Consider the 46V voltage rating when designing power supplies. Evaluate thermal dissipation needs given the 2.2A continuous current capability in the specified package.

Part Context

This part belongs to the STK672 series of hybrid ICs from onsemi. These components are specialized for motion control applications, specifically targeting office automation equipment. The series integrates driver logic and power outputs to simplify system design for stepper motor control in printers and copiers.

Replacement Considerations

The STK672-630AN-E is a documented variant within the same series. Verify compatibility regarding pin configuration and electrical ratings before substitution. Consult official datasheets to ensure functional equivalence for the specific motor load.