STK672-081-E

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The STK672-081-E is a two-phase bipolar stepping motor driver IC, which is categorized as a PMIC (Power Management IC) for Motor Drivers, Controllers. It features an unipolar driver for two-phase bipolar stepping motors with an integrated power MOSFET to provide the power supply voltage for low-voltage applications. The motor driver is suited for a wide range of control systems from simple control systems to microcomputer controlled ones.

The STK672-081-E is designed to operate at supply voltages of 4.5 V to 25 V. Its output current is up to 1 A and it can be used to drive a range of motors, such as 2-phase bipolar stepping motors with windings of up to 0.8Ω/phase. It features a high degree of protection against reversed polarity and short circuits, making it suitable for use in high-reliability applications.

The STK672-081-E provides a wide range of features that make it suitable for a variety of applications. It is capable of speed control by providing a variable supply voltage, allowing the motor speed to be adjusted without the need to modify the external circuit. In addition, the IC is capable of maintaining a constant speed over a wide range of supply voltages, making it particularly suitable for applications where the supply voltage or temperature may vary. The current control of the device is also adjustable, allowing users to adjust the output current to achieve the desired motor speed.

In terms of its working principle, the STK672-081-E works by converting the logic level input into electrical pulses of various widths, which control the drive current in the winding of the motor. The device integrates an oscillator which generates the pulse-width-modulated (PWM) signals required for two-phase bipolar stepping motor control. The PWM signals are received by the motor coils, enabling the motor speed control. The control of the current in the motor coils is adjustable, allowing users to adjust the motor speed.

The STK672-081-E is suitable for a wide range of applications, including laboratory automation, digital encoding, numerical control systems and positioning control. It is also suitable for a variety of home appliances, such as washing machines, refrigerators and robotic systems. Overall, the STK672-081-E is a versatile device that is capable of providing reliable performance and high precision in a wide range of applications.

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