SLA7020M 查看數據表（PDF） - Sanken Electric co.,ltd.
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SLA7020M Datasheet PDF : 10 Pages
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SLA7020M and SLA7021M
s Block diagram
Reference voltage
Vb
r1
R·C for setting r3/r4
chopper OFF
Auxiliary Excitation
power supply signal
r2
time
C1/C2
R·C for protection
against chopping
malfunctions
r5/r6
C3/C4
REF Current peak
detector
circuit
Td
VS
IN
Chopper OFF
time control
circuit
Excitation signal
transfer circuit
Motor main
power supply
VCC
Motor
OUT
OUT
Current control and
counter EMF
canceller circuit
GND
Da/Db
RS
Current detection resistor
RS
s Internal circuit diagram (enclosed with chain line)
6
1
5
VCC
Vs=10~30V
+
8
14
Reg Reg
+
–
+
–
+
+
–
–
10
15
7
23 4
12 13 11
9
RS
Da
C3
r3
r1
r5
C1
r2 r6
Vb(5V)
r4 C4
Db
RS
C2
13
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