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STK672-400C-E Scheda tecnica(PDF) 1 Page - ON Semiconductor |
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STK672-400C-E Scheda tecnica(HTML) 1 Page - ON Semiconductor |
1 / 19 page O1712HKPC 5-7448 No.A2136-1/19 http://onsemi.com Semiconductor Components Industries, LLC, 2013 June, 2013 STK672-400C-E Overview The STK672-400C-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 • Entry of external clock is enough to activate the micro step sinusoidal driver. • The excitation mode of 2, 1-2, W1-2, 2W1-2, or 4W1-2 can be selected with the external pin. • The 4-phase distributor switching timing can be set to occur either on both rising and falling edge detection or on rising edge detection only with an external pin (MODE3). • A phase holding function is provided to prevent phase skip during switching of excitation in the course of operation. • The motor current is set by a voltage divider formed by an external resistor connected to the Vref pin. • The CLK input pin is provided with an internal noise filtering circuit in addition to a Schmidt circuit to increase the margin for extraneous noise. • When set low, the ENABLE pin turns off the motor drive current for all phases and retains the phase excitation state. Ordering number : ENA2136 Thick-Film Hybrid IC 2-phase Stepping Motor Driver |
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