STK672-330 Description
Thick-Film Hybrid IC STK672-330 Unipolar Fixed-Current Chopper (External-Excited PWM) Scheme and Built-in Phase Signal Distribution IC Two-Phase Stepping Motor Driver (Square Wave Drive) Output Current: 1.8 A Overview The STK672-330 is a unipolar fixed-current chopper type 2-phase stepping motor driver hybrid IC.
STK672-330 Key Features
- All inputs are Schmitt inputs
- The motor current can be set by changing the Vref pin voltage. Since a 0.195-Ω current detection resistor is built in, a
- The input frequency range for the clock signal used for motor speed control is 0 to 50 kHz
- Supply voltage ranges: VCC1 = 10 to 42 V, VCC2 = 5.0 V ±5%
- This IC supports motor operating currents of up to 1.8 A at Tc = 105°C, and of up to 2.65 A at Tc = 25°C
- Provides a function that, during clock input, forces all MOSFET devices to the off state when the ENABLE pin is set low,
STK672-330 Applications
- Two-phase stepping motor drive in send/receive facsimile units
- Paper feed in copiers, industrial robots, and other applications that require 2-phase stepping motor drive