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4.15STR-G6551-F8 (IC901) : Switch regulator
4.15.1 Block diagram
4.15.2 Pin function
Pin No.
Symbol
1
D
Drain terminal
2
S
Source terminal
3
GND
Ground terminal
4
Vin
Power supply terminal
5
O.C.P/F.B
Over current / Feedback terminal
4.16TC74HC08AF-X(IC704) : 2-input and gate
4.16.1 Pin layout
1A
1
1B
2
1Y
3
2A
4
2B
5
2Y
6
GND
7
(TOP VIEW)
Description
MOS FET drain
MOS FET source
Ground
Input of power supply for control circuit
Input of over current detection signal and
constant voltage control signal
4.16.2 Truth table
A
L
14
VCC
L
13
4B
H
H
12
4A
11
4Y
10
3B
9
3A
8
3Y
XV-SA600BK/XV-SA602SL
Function
B
Y
L
L
H
L
L
L
H
H
47
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