ON Semiconductor STK672-640AN-E Stepper Motor Driver

The STK672-640AN-E is a highly-integrated, high-efficiency stepper motor driver module from ON Semiconductor, designed to drive bipolar stepper motors in various applications. This compact, hybrid IC utilizes an advanced multi-chip module technology, providing a robust and reliable solution for precise motor control.

With its built-in micro-stepping controller and fixed off-time current control, the STK672-640AN-E is capable of driving your stepper motor with smooth and accurate motion profiles. The device supports various stepping modes, including full-step, half-step, quarter-step, and even up to 1/16 micro-step operation, giving designers the flexibility to choose the desired level of motion resolution.

The driver operates within a wide range of supply voltages, from 10V to 46V, and can deliver up to 2.0A of output current per phase, making it suitable for a diverse set of applications. Its high efficiency is achieved through the use of low on-resistance MOSFETs, which reduce power dissipation and improve thermal performance.

Safety features are a key aspect of the STK672-640AN-E design. The device includes thermal shutdown (TSD), over-current protection (ISD), and under-voltage lockout (UVLO) to safeguard the module and the motor from potential damage due to abnormal operating conditions. Additionally, the driver integrates a built-in excitation distribution circuit, which simplifies the motor control and reduces the need for complex external circuitry.

The STK672-640AN-E comes in a compact 19.6 mm x 24.4 mm package, making it ideal for space-constrained applications while still offering excellent heat dissipation characteristics. It is commonly used in office automation machines, surveillance systems, home appliances, gaming machines, and medical equipment, where precise motor control is paramount.

Overall, the STK672-640AN-E stepper motor driver from ON Semiconductor is a versatile and efficient solution for your motor driving needs, combining high performance, reliability, and ease of use into a single integrated module.