STK472-422A-E 查看數據表（PDF） - ON Semiconductor
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STK472-422A-E Datasheet PDF : 21 Pages
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Block Diagram
STK672-442A-E
VDD
9
MOI FAULT2 Vref
7
8
19
MODE1 10
MODE2 11
CWB 13
CLOCK 12
MODE3 17
RESETB 14
Excitation mode
selection
Rising edge /
falling edge
detection
Phase
advance
counter
Current divider
ratio switching
Pseudo sine
wave generator
1÷4.9
VSS
-
+
100kΩ
Power-on reset
Phase
excitation
signal
generator
Overcurrent
detection
ENABLE 15
Oscillator
FAULT1 16
S.G 18
Latch
Reference clock
generator
PWM
control
SUB
Overheating
detection
-
+
-
+
A
AB B
BB
4
5
3
1
2 P.G1
6 P.G2
Sample Application Circuit
VDD=5V
CLOCK
ENABLE
CWB
MOI
C02
10μF
R01
+
R02
S.G
FAULT1
FAULT2
STK672-442A-E
10
9
11
17
12
15
13
7
RESETB
14
2-phase stepping motor
A
4
AB
5
B
3
BB
1
Vref
19
P.G2
2
8
16 18
6
P.G1
VCC=24V
+
C01
100μF
P.GND
No.A1587-5/21
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