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STK672-642A-E fiches techniques PDF

ON Semiconductor - 2-phase Stepping Motor Driver

Numéro de référence STK672-642A-E
Description 2-phase Stepping Motor Driver
Fabricant ON Semiconductor 
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STK672-642A-E fiche technique
Ordering number : ENA1589A
STK672-642A-E
Thick-Film Hybrid IC
2-phase Stepping Motor Driver
http://onsemi.com
Overview
The STK672-642A-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
Built-in overcurrent detection function (output current OFF).
Built-in overheat detection function (output current OFF).
If either over-current or overheat detection function is activated, the FAULT signal (active low) is output.
Built-in power on reset function.
The motor speed is controlled by the frequency of an external clock signal.
2 phase or 1-2 phase excitation switching function.
Using either or both edges of the clock signal switching function.
Phase is maintained even when the excitation mode is switched.
Rotational direction switching function.
Supports schmitt input for 2.5V high level input.
Incorporating a current detection resistor (0.089Ω: resistor tolerance ±2%), motor current can be set using two
external resistors.
The ENABLE pin can be used to cut output current while maintaining the excitation mode.
With a wide current setting range, power consumption can be reduced during standby.
No motor sound is generated during hold mode due to external excitation current control.
Miniature package (provides pin compatibility with STK672-640A-E)
Semiconductor Components Industries, LLC, 2013
June, 2013
62911HKPC 018-08-0078/N1809HKIM No. A1589-1/21

PagesPages 21
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