Epson LQ 1050 Technical Manual - Page 210
A.1.7, Phases Stepper
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REV.-A A.1.7 STK6722H 4-Phases Stepper Motor Driver ./T% The STK6722H is an uni-polar constant current chopper driver IC for the four phases stepper motor. I I 1 2 3456 18 Figure A-1 5. STK6722H Pin Diagram I* , Q,> 9Z t4 Is m I I nls 1 4~ :cQJ II- D1O - 011 *I7 082 *I* 07 DO ~------ --= ------- 1; 1, n: t "4 ; 8: 1------- _l L------ - -~ .Jw_- ,, ~, ,, ,/ , L ----- d -- - mm f. ... . . II I I Figure A-1 6. STK6722H Internal Circuit A-24
REV.-A
A.1.7
STK6722H
4-Phases Stepper
Motor Driver
/%
T
The
STK6722H
is an
uni-polar
constant current chopper driver
IC
for the four phases stepper motor.
.
I
I
1
2
3456
-
- - - - - - 18
Figure A-1 5.
STK6722H
Pin Diagram
I
1
II
I
m
D1O
nls
—
—
—
,
Q,>
9Z
t4
Is
4
~
:
c
Q
J
I*
011
082
*I*
*I7
07
DO
~------
--=
-------
--
~
.Jw_-
-
1;
1,
,,
~,
,,
n:
t
“4
;
8:
,/
,
L
-----
d
1-------
_l
L------
-
-
-
mm
I
I
I
I
.
.-
f
.
.
.
.
Figure A-1 6.
STK6722H
Internal Circuit
A-24