Stk6981 H - Epson LQ-2550 Technical Manual

REV.-A
The STK6981 H is a unipolar constant current chopper type driver IC, and includes a control/drive circuit
for a 4-phase stepper motor.
2
Q
)
RI
---- - - --
1 2 3 4
Figure A-26. STK6981 H Pin
6 7 8 9
Figure A-27. STK6981 H Internal Circuit
A - 2 4
Diagram
15
010
1 I
I