2-phase Stepper Motor Driver
Ordering number : ENA2277A
STK672-642AN-E
Thick-Film Hybrid IC
2-phase Stepper Motor Driver
http://onsemi.com
Overvie...
Description
Ordering number : ENA2277A
STK672-642AN-E
Thick-Film Hybrid IC
2-phase Stepper Motor Driver
http://onsemi.com
Overview
The STK672-642AN-E is a hybrid IC for use as a unipolar, 2-phase stepper motor driver with PWM current control.
Applications
Office photocopiers, printers, etc.
Features
Built-in overcurrent detection function, overheat detection function (output current OFF). FAULT signal (active low) is output when overcurrent or overheat is detected. 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.
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. Supports compatible pins with STK672-640AN/-630AN/-632AN-E.
Specifications
Absolute Maximum Ratings at Tc = 25C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage 1 Maximum supply voltage 2 Input voltage Output current 1 Output current 2 Output current 3 Allowable powe...
Similar Datasheet