STK681-310

The STK681-310 is a Pulse-Width Modulation (PWM) control IC designed to be used as a motor driver and controller. This IC is ideal for applications which require the precise and efficient control of both DC and stepper motors. The STK681-310 integrates several motor control functions in one small and highly reliable package.

The STK681-310 includes features that can save power and improve motor performance, such as an adjustable PWM frequency and duty cycle, an integrated low-ripple voltage regulator, an adjustable under-voltage lockout voltage setting, and a full-bridge output stage. It also features over-voltage and over-current protection, as well as a temperature protection circuit for the motor.

The STK681-310 works by using PWM signals to control the speed and direction of a motor. A PWM signal is a square wave signal with a certain frequency and duty cycle. The frequency of the signal is typically set to match the speed at which the motor should be driven. The duty cycle of the signal indicates the rate of power delivery to the motor, which determines the amount of torque it can deliver. The STK681-310 also provides adjustable current control, allowing the user to adjust the amount of current flowing in the motor at any given time.

The STK681-310 is designed to operate over the extended temperature range of -40°C to +125°C. It also comes with an integrated over-temperature protection circuit which allows the device to shut down if the temperature exceeds a certain threshold. This feature ensures that the motor is protected from overheating.

The STK681-310 is ideal for applications in the automotive and general industrial markets, such as motor drive systems for E-bikes, electric tools, robotic automation, and more. The integrated features and the extended temperature range of the STK681-310 make it an excellent choice for motor control applications in these markets.