STK672-400C-E Datasheet, PDF (1/19 Pages) Sanyo Semicon Device – Thick-Film Hybrid IC 2-phase Stepping Motor Driver

Ordering number : ENA2136
STK672-400C-E
Thick-Film Hybrid IC
2-phase Stepping Motor Driver
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.
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"standard application", intended for the use as general electronics equipment. The products mentioned herein
shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life,
aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system,
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Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer's products or
equipment.
O1712HKPC 5-7448 No.A2136-1/19