STK672-632A-E_11 Datasheet, PDF (4/21 Pages) Sanyo Semicon Device – 2-phase Stepping Motor Driver

Block Diagram
STK672-632A-E
VDD=5V 9
MODE1 10
N.C 11
MODE2 17
CLOCK 12
CWB 13
RESETB ₁₄
ENABLE 15
FAULT 16
S.G 18
Vref 19
Excitation mode
selection
Phase
advance
counter
Power-on
reset
VDD
Phase
excitation
signal
generator
N.C N.C A
87
4
AB
5
B
3
F1
F2
F3
FAO
FAB
FBO
FBB
Latch
Circuit
Overcurrent
detection
R1
R2
FAULT
signal
(open drain)
Overheating
detection
Latch
Circuit
AI
Current control
chopper circuit
BI
Vref/4.9
Amplifier
VSS
100kΩ
VSS
Vref
VSS
BB
1
F4
P.G2
2
P.G1
6
Sample Application Circuit
VDD(5V)
CLOCK
MODE1
MODE2
CWB
ENABLE
FAULT
RESETB
STK672-632A-E
9
2 phase stepping motor driver
12
10
A
4
17
AB
5
13
15
3B
BB
14
1
R01
R03
16
Vref
19
2
18 ⁶
P.G2
P.G1
R02
S.G
VCC
24V
+
C01
at least 100μF
P.GND
No. A1588-4/21