STK672-120-SL-E
Overview
The STK672-120-SL-E 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 (the CLOCK pin signal).
- The excitation type is switched according to the state (low or high) of the MODE pin. The mode is set to 2-phase or
1-2phase excitation on the rising edge of the clock signal.
- A motor direction switching pin (the CWB pin) is provided.
- All inputs are schmitt inputs and 40kΩ (typical:
- 50 to +100%) pull-up resistors are built in.
- The motor current can be set by changing the Vref pin voltage. Since a 0.165Ω current detection resistor is built in, a current of 1A is set for each 0.165V of applied voltage.
- The input frequency range for the clock signal used for motor speed control is 0 to 25k Hz.
- Supply voltage ranges: VCC = 10 to 42V, VDD = 5.0V ±5%
- This IC supports motor operating currents of...
