JVC XV-SA600BK - STR-G6651-F8 (IC901): Switch Regulator; TC74 HC08 AF-X(IC704): 2-Input and Gate

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