STK672-532
Block Diagram
A
5
AB
4
B
3
BB
2
V
(5V)
DD
6
8
V
DD
F1
F2
F3
F4
FAO
Excitation
mode
MODE
Phase
excitation
signal
FAB
FBO
selection
generator
FBB
9
CLOCK
Phase
advance
counter
CWB 10
R2
R1
RESETB
ENABLE
11
12
AI
Chopper
circuit
BI
CI
GND
1
V
SS
Vref
7
Sample Application Circuit
STK672-532
6
9
8
V
(5V)
DD
2-phase stepping motor driver
CLOCK
MODE
A
5
4
AB
V
24V
CWB
10
12
CC
ENABLE
R04
C04 C05 C06 C07
B
3
2
BB
C01
at least 100μF
RESETB
C08
11
7
+
R01
Vref
R03
GND
1
D1
P.GND
+
C03
R02
10μF
C02
+
10μF
R02 is normally open.
No. A2111-4/23