Ordering number : ENA2140 STK672-120-SL-E Thick-Film Hybrid IC 2-phase Stepping Motor Driver http://onsemi.
com Overview The STK672-120-SL-E is a hybrid IC for use as a unipolar, 2-phase stepping motor driver with PWM current control.
Applications • Office photocopiers, printers, etc.
Features • The motor speed can be controlled by the frequency of an external clock signal (the CLOCK pin signal).
• The excitation type is switched according to the state (low or high) of the MODE pin.
The mode is set to 2-phase or 1-2phase excitation on the rising edge of the clock signal.
• A motor direction switching pin (the CWB pin) is provided.
• All inputs are schmitt inputs and 40kΩ (typical: –50 to +...

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