Ordering number : ENA0754A
STK672-540
Thick-Film Hybrid IC
2-phase Stepping Motor Driver
http://onsemi.com
Overview
T...
Ordering number : ENA0754A
STK672-540
Thick-Film Hybrid IC
2-phase Stepping Motor Driver
http://onsemi.com
Overview
The STK672-540 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 (0.11Ω: 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
62911HKPC 018-08-0038/71608HKIM No. A0754-1/22
STK672-540
Specifications
Absolute Maximum Ratings at Tc = 25°C
Parameter Maximum supply
voltage 1 Maximum supply
voltage 2 Input
voltage Output current 1 Output current 2 Allowable power dissipation Operating substrate temperature Junction temperature Storage temperature
Symbol VCC max VDD max VIN max IOP max IOH max Pd max
Tc ma...