Daewoo TVZ 1321 Service Manual page 42

2) Function of Each Termiinal
No. of Terminal
1
2
3
4
5
6
7
8
9
3) Other Function
Symbol Function
OVP Built-in Overvoltage Protecton circuit
TSD Built-In Thermal Shutdown Circuit
4) Internal Circuit Constant
R1 T ON Adjustment Trimming Resistor
R2 T OFF Adjustment Trimming Resistor
R3 1.0kΩ
R4 100Ω
R5 85Ω
R6 Vs Adjustment Trimming Resistor
Symbol Description
C Collector Terminal
GND Ground Terminal
B Base Terminal
SINK Sink Terminal
OCP Overcurrent Protection Terminal
Inhibit Terminal
INH
Latch Terminal
SENS Sensing Terminal
DRIVE Drive Terminal
VIN VIN Terminal
R7 14KΩ C4
R8 2.5K C5
R9 35kΩ
C1 3300pF
C2 0.01µF
C3 820pF
40
Function
Collector of TRr(Power Transistor)
Ground(Emitter of PTr)
Base of PTr
Base Current (IS) Input
Overcurrent Sensing Signal Input
Off Time Synchronizing
Latch Circuit Operation Signal Input
Constant Voltage Control Signal Input
Base Drive Current(ID) Output
Control Circuit Power Supply Input
0.01µF
1500pF