STK672-050 - Sanyo Semicon Device

STK672-050 Thick-Film Hybrid IC

Ordering number: EN 5228A Thick Film Hybrid IC STK672-050 Microstep Operation-Supported 4-Phase Stepping Motor Driver (IO = 3.0A) Overview The STK672-050 is a unipolar constant-current choppertype externally-excited 4-phase stepping motor driver hybrid IC which uses MOSFET power devices. It has a microstep operation-supported 4-phase distributed controlle.

Features

• Microstep sine-wave driver operation using only an external clock input (0.2Ω current detection resistor built-in)
• Microstep drive using only an external reference voltage setting resistor
• 2, 1-2, W1-2, 2W1-2, 4W1-2 phase excitation selectable using external pins
• Selectable vector locus (perfect circle mode, inside 1 mode, outside 2 modes) to match motor characteristics in microstep drive state
• Phase hold function during excitation switching
• Schmitt trigger inputs with built-in pull-up resistor (20kΩ)
• Monitor output pin enabling real-time confirmation of IC excitation
• The CLK an.