STK672-642AN-E

单极两相步进电机驱动器

The is a hybrid IC for use a unipolar, 2-phase stepper motor driver with PWM current control. It includes a built-in controller and is based on a unipolar constant-current PWM system. The STK672-642AN-E supports application simplification and standardization by providing a built-in 4 phase distribution stepping motor controller. It supports five excitation methods: 2 phase and 1-2 phase excitations, and can provide control of the basic stepping angle of the stepper motor divided into 1/2 step units. It also allows the motor speed to be controlled with only a clock signal. The use of this hybrid IC allows designers to implement systems that provide high motor torques, low vibration levels, low noise, fast response, and high-efficiency drive. In addition the STK672-642AN-E has protective function against over-current and over-heat. And STK672-640AN-E with hole to attach a heat-sink is lined up.

Features |   | Benefits

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Micro stepping controller built in

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Easy to switch between full step and half step with prevention of jumping phase

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Protective function against over-current and over-heat built in

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Superior in safety drive

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Current detection resistors built in

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Easy to design and reduce the mounting area