ON Semiconductor STK672-410 Stepper Motor Driver

The STK672-410 from ON Semiconductor is a unipolar 2-phase stepper motor driver that integrates power MOSFETs and microstepping control logic into a single package. This high-performance, compact module is designed to drive a bipolar stepper motor in a microstepping mode and is capable of low-vibration, high-performance motor control.

With its built-in microstepping controller, the STK672-410 can divide a full step into a maximum of 16 microsteps, allowing for smoother and more precise motor movements. This feature makes it an excellent choice for applications requiring fine positioning and smooth motion, such as 3D printers, CNC machines, and automated robotic arms.

The device operates from a supply voltage ranging from 10V to 42V, making it versatile for various applications. It can deliver an output current of up to 1.2A per phase, without the need for external current sense resistors, thanks to its integrated current detection feature.

The STK672-410 is equipped with multiple protection features to ensure the safety and longevity of the module and the motor. These include thermal shutdown (TSD), overcurrent shutdown (ISD), and motor load open detection (LOD). These protective measures help prevent damage from overheating, excessive current, and potential wiring issues.

The compact design of the STK672-410, combined with its heat dissipation capabilities, makes it a reliable and efficient solution for driving stepper motors in space-constrained applications. Its pin layout is designed for easy PCB layout and simple interfacing with microcontrollers or other control units.

Overall, the ON Semiconductor STK672-410 is a robust, easy-to-use stepper motor driver module that offers sophisticated features for advanced motor control applications. Its integration of power components and control logic into a single device reduces system complexity and improves reliability, making it a popular choice among engineers and hobbyists alike.