STK672-050-E Description
EN5228D STK672-050-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 3.0A (no heat sink ) http://onsemi. Overview The STK672-050-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...
STK672-050-E Key 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)
- Provides four freely selectable modes for the vector locus during microstepping drive: circular mode, one inside mode, a
- Phase retention even if excitation is switched
- The excitation phase state can be verified in real time using the MO1, MO2, and MOI signal output pins
- The CLK input counter block can be selected to be one of the following by the high/low setting of the M3 input pin
- The CLK and RETURN input pins include built-in malfunction prevention circuits for external pulse noise
- ENABLE and RESET pins provided. These are Schmitt trigger inputs with built-in 20kΩ (typical) pull-up resistors
- No noise generation due to the difference between the A and B phase time constants during motor hold since external exci
- Microstepping operation supported even for small motor currents, since the reference voltage Vref can be set to any valu