SKT672-080-E Datasheet (ON Semiconductor)

SKT672-080-E, Stepping Motor Driver

External Excitation Chopper Drive Block Description VCC1 IOFF L2 D1 ION Enable φA (control signal) Current divider L1 Divider CR oscillator 800kHz 45kHz S MOSFET AND Q Latch circuit R Noise filter Vref A=1 * + Rs Driver Block Basic Circuit Structure A13263 Since this hybrid IC

Ordering number : EN6507B STK672-080-E Thick-Film Hybrid IC Unipolar Constant-current Chopper (external excitation PWM) Circuit with Built-in Microstepping Controller Stepping Motor Driver (sine wave drive) Output Current 2.8A (no heat sink ) http://onsemi.com Overview The STK672-080-E is a stepping motor driver hybrid IC that uses power MOSFETs in the output stage.

It includes a built-in microstepping controller and is based on a unipolar constant-current PWM system.

The STK672-080-E sup

SKT672-080-E Features

* Can implement stepping motor drive systems simply by providing a DC power supply and a clock pulse generator.

* One of five drive types can be selected with the drive mode settings (M1, M2, and M3) 1) 2 phase excitation drive 2) 1-2 phase excitation drive 3