STK672-440A-E Sanyo Semicon Device, STK672-440A-E Datasheet - Page 5

• Manufacturer Part Number: STK672-440A-E
• Description: 2-phase Stepping Motor Driver
• Manufacturer: Sanyo Semicon Device

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Block Diagram
Sample Application Circuit
RESETB
ENABLE
FAULT1 16
MODE1
MODE2
MODE3
CLOCK 12
CWB
S.G 18
10
17
14
15
V DD =5V
ENABLE
FAULT1
FAULT2
CLOCK
CWB
MOI
S.G
10μF
Oscillator
C02
Excitation mode
Rising edge /
falling edge
Power-on reset
detection
selection
+
R01
R02
Reference clock
generator
Latch
RESETB
advance
counter
Phase
Vref
V DD
SUB
9
STK672-440A-E
10
11
17
12
15
13
7
14
19
STK672-440A-E
excitation
generator
Phase
control
signal
PWM
8
wave generator
Current divider
ratio switching
Pseudo sine
9
16
18
MOI
7
4
5
3
1
2
6
+
+
-
-
V SS
1÷4.9
Overcurrent
Overheating
detection
A
AB
B
BB
P.G2
detection
P.G1
FAULT2
2-phase stepping motor
100kΩ
+
-
Vref
19
A
4
AB
5
+
C01
100μF
B
3
V CC =24V
P.GND
No.A1128-5/21
BB
1
2
6
P.G1
P.G2
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