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Product Detailed Parameters
- Description：IC MOTOR DRIVER
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Bulk
- Motor Type - Stepper：-
- Motor Type - AC, DC：-
- Function：-
- Output Configuration：-
- Interface：-
- Technology：-
- Step Resolution：-
- Applications：-
- Current - Output：-
- Voltage - Supply：-
- Voltage - Load：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The STK672-081-E is a monolithic two-phase stepper motor driver integrated circuit manufactured by onsemi. It integrates power output stages, control logic, and protection circuits into a single package. The device supports unipolar drive configurations with pulse-width modulation (PWM) capability for microstepping applications. It operates within a supply voltage range of 10 V to 45 V and delivers an output current of 2.8 A per phase. The component features low operating supply current of 14 mA and includes thermal shutdown protection. It is designed for industrial automation and motion control systems requiring reliable stepper motor actuation.
Feature Summary
- Integrated two-phase power output stage for direct stepper motor driving
- Supports PWM-based microstepping for smooth motion control
- Built-in thermal shutdown protection for operational safety
- Monolithic design combining control logic and power drivers
Applications
- Industrial automation equipment
- Motion control systems
- Unipolar stepper motor actuation
- Precision positioning devices
Procurement Notes
Verify component authenticity through authorized distributors or certified secondary market suppliers such as Rochester Electronics. Confirm manufacturing date codes and lot traceability prior to procurement. Ensure compliance with RoHS and REACH regulations as specified in the official datasheet. Validate pin compatibility with target PCB layouts. Request original manufacturer documentation to confirm electrical specifications and handling requirements.
Selection Notes
Select this component for applications requiring integrated two-phase stepper motor control with microstepping support. Verify that the load current does not exceed the 2.8 A rating per phase. Ensure the supply voltage remains within the 10 V to 45 V operational window. Consider thermal management solutions if operating near maximum current limits. Confirm compatibility with unipolar motor winding configurations before integration.
Part Context
The STK672 series represents a family of stepper motor drivers originally developed by Sanyo Semiconductor, now part of onsemi. The STK672-081-E variant specifically targets two-phase unipolar applications. Related models include the STK672-080-E and STK672-430AN. The series is characterized by high integration levels, reducing external component count in motor driver designs.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Designers should consult onsemi technical support for qualified alternatives. Verify pinout compatibility and electrical parameters when considering cross-references from other manufacturers.
