Ordering number : ENA2284A
STK672-740AN-E
Thick-Film Hybrid IC
2-phase Stepper Motor Driver
http://onsemi.com
Overvie...
Ordering number : ENA2284A
STK672-740AN-E
Thick-Film Hybrid IC
2-phase Stepper Motor Driver
http://onsemi.com
Overview
The STK672-740AN-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. Phase signal input driver activated with an active Low and incorpororates a simulataneous ON prevention 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. Supports compatible pins with STK672-732AN-E.
Specifications
Absolute Maximum Ratings at Tc = 25C
Parameter Maximum supply
voltage 1 Maximum supply
voltage 2 Input
voltage Output current 1 Output current 2 Output current 3 Allowable power dissipation 1 Allowable power dissipation 2 Operating substrate temperature Junction temperature Storage temperature
Symbol VCC max VDD max Vin max IOP max IOH max IOF max PdMF max PdPK max Tcmax Tjmax Tstg
Conditions No signal No signal Logic input pins 10μs 1 pulse (resistance load) VDD = 5V, More than 200Hz 16pin Output current With an arbitrarily ...