BELINEA Belinea 103052, Service Manual

Page: 23 / 72

--21--
Belinea 103052 Technical Service Manual
STR-F6654
BLOCK DIAGRAM
4
3
2
START
VIN
Rconst-
C1 R1
Comp.2
Vth(2)
Comp.1
Vth (1)
O.C.P/F.B
S
D
R4
R3
GND
LATCH
REG.
T.S.D
Iconst
O.V.P
O.S.C
O.S.C
1
5
Function of Terminal
Other Function
Terminal No. Symbols Description Functions
1 O.C.P/F.B Overcurrent/Feedback terminal
Input of overcurrent detection signal and
constant voltage control signal
2 S Source terminal MOS FET source
3 D Drain terminal MOS FET drain
4 VIN Power supply terminal Input of power supply for control circuit
5 GND Ground terminal Ground
Symbols
Functions
O.V.P Built-in overvoltage protection circuit
T.S.D Built-in thermal shutdown circuit
Internal Constants
R1
T
OFF
Adjustment Trimming Resistor
R2
R4
C1
10
4700pF
I
const
Adjustment Trimming Resistor
R3
150