STK672-520 Datasheet, PDF (1/23 Pages) Sanyo Semicon Device – Thick-Film Hybrid IC 2-phase Stepping Motor Driver

Ordering number : ENA1179
STK672-520
Thick-Film Hybrid IC
2-phase Stepping Motor Driver
http://onsemi.com
Overview
The STK672-520 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.
• 2-phase excitation or 1-2 phase excitation is selected according to switching the state of the MODE pin (low or high).
• The phase is maintained even if the excitation mode is switched in the middle of operation.
• The direction of rotation can be changed by applying a high or low signal to the CWB pin used to select the direction
of rotation.
• Supports schmitt input for 2.5V high level input.
• Incorporating a current detection resistor (0.33Ω: resistor tolerance ±2%), motor current can be set using two external
resistors.
• Equipped with an ENABLE pin that, during clock input, allows motor output to be cut-off and resumed later while
maintaining the same excitation timing.
Semiconductor Components Industries, LLC, 2013
June, 2013
82912HKPC 018-08-0039 No. A1179-1/23