Daewoo DDT-21H9ZZF, Service Manual, Page: 34 / 83

-33-
Service Manual CP-099F
4-8-3 Block diagram
4-8-4 Pins description
pin name symbol description
1 Overcurrent / feedback O.C.P./ F.B. Input of over current detection signal and
feedback signal
2 Source S MOSFET source
3 Drain D MOSFET drain
4 Supply V
IN
Input of power supply for control circuit
5 Ground GND Ground
4
START
REG.
T.S.D
O.V.P LATCH
DRIVE
O.S.C
5
1
2
3
GND
D
S
O.C.P/F/B
R4
R3
Comp. 1
Comp. 2
-
+
Vth(1)
Vth(2)
C1 R1
Rconst-
R2
VIN