Thick-Film Hybrid IC - Sanyo Semicon Device
Description
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 controller built-in to realize a high torque, low vibration, low noise stepping motor driver using a simple control circuit.
Package Dimensions
unit: mm
4164
[STK672-050]
Applications
• Printer, copier, and X-Y plotter stepping motor drivers
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 and RETURN inputs provide an internal noise elimination circuit as well as CMOS Schmitt circuit to prevent malfunction due to impulse noise.
• 4-phase distribution switch timing selected externally to either CLK rising-edge only detection mode or both rising-edge and falling-edge detection mode • ENABLE pin for excitation current cutoff, thereby reducing system current drain when driver is stopped
Series Organization
The following devices form a series with differing output capacity.
Type No.
STK672-040 STK672-050 Output current (A) 1.
5 3.
0
SANYO Electric Co.
, Ltd.
Semiconductor Business Headquarters
TOKYO OFFICE Tokyo Bldg.
, 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
N2997HA(ID) / 11896HA(ID) No.
5228—1/11
STK672-050
Specifications
Maximum Ratings at Ta = 25°C
Parameter Maximum...
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