ON Semiconductor STK681-201-E Motor Driver IC

The ON Semiconductor STK681-201-E is a highly efficient, single-channel motor driver integrated circuit (IC) designed for driving one phase of a bipolar stepper motor or a brushless DC motor. This versatile IC is a perfect choice for a variety of applications, including office automation machines, home appliances, and industrial equipment where precise motor control is required.

The STK681-201-E is part of ON Semiconductor's well-known SANYO STK68xx series and is encapsulated in a compact 15-pin multiwatt package, offering a space-saving solution for PCB designs. The IC integrates a unipolar fixed-current chopper type of stepper motor driver, which ensures smooth and efficient operation of the motor.

Key features of the STK681-201-E include:

• Operating voltage range of 10V to 46V, providing flexibility for various power requirements.
• High output current capability of up to 2.0A, allowing it to drive a wide range of motor sizes.
• Built-in overcurrent protection and thermal shutdown features that enhance the safety and reliability of the motor control system.
• Micro-stepping support, enabling precise control over motor movement for applications that require high accuracy.
• Low on-resistance (Ron) of the output stage, which minimizes power loss and improves overall efficiency.

With its integrated diodes for back electromotive force (EMF) protection, the STK681-201-E is engineered to handle the inductive loads associated with motor driving applications. The IC also supports a wide range of control methods, including parallel, serial, and PWM control, providing designers with the flexibility to choose the best method for their specific application.

The STK681-201-E is not only designed for performance but also for ease of use. Its simple pin configuration and minimal external components requirement make it easy to integrate into existing designs, reducing development time and speeding up the time-to-market for new products.

Whether you are designing a new motor control application or seeking to improve an existing one, the ON Semiconductor STK681-201-E offers a reliable, efficient, and versatile solution that can meet the demands of your project.