LG Flatron 795FT Plus (FB795E-UA) - Page 37

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STR-F6454R(LF1351)5P BK SWITCHING REGULAATOR POWER
4
3
2
1
5
C1
C2
R3
R2
R1
R4
START
I
CONST
DRIVE
SENSE
ERROR
AMP
REG
LATCH
O.V.P
T.S.D
O.S.C
STR
SK
b
BLOCK DIAGRAM
1 2 3 4 5
Terminal
NO
Symbols
O.C.P/F.B
S
D
VIN
GND
Description
Overcurrent/Feedback terminal
Input of overcurrent detection signal and
constant voltage control signal
MOS FET source
MOS FET drain
CONTROL CIRCUIT VOLTAGE INPUT
Ground
Source terminal
Drain terminal
Power supply terminal
Ground terminal
Functions
1
2
3
4
5
KA7805 (KA7808, KA7812) Positive Voltage Regulator 5V (12V)
INPUT OUTPUT
GND
1 3
2
SERIES
PASS
ELEMENT
SOA
PROTECTION
THERMAL
PROTECTION
CURRENT
GENERATOR
REFERENCE
VOLTAGE
STARTING
CIRCUIT
ERROR
AMPLIFIER
1: Input
2: GND
3: Output
1
2
3
BLOCK DIAGRAM