Daewoo DSC-3220E/3220L service manual Pin Name Symbol Description, Vin Ovp, Iin H, Tj Tsd

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

VIN

Input of power supply for control circuit

5

Ground

GND

Ground

4-8-5 Control part electrical characteristics

DESCRIPTION

IC PIN

SYMBOL

RATING

UNIT

NUMBER

MIN.

TYPE

MAX

Operation start voltage

4-5

VIN (on)

14.4

16

17.6

V

Operation stop voltage

4-5

VIN (off)

9

10

111

V

Circuit current in

4-5

IIN (on)

-

-

30

mA

operation

Circuit current in non-

4-5

IIN (off)

-

-

100 mA

A

operation

Maximum OFF time

-

TOFF (max)

45

-

55

SEC

Minimum time for input of

1-5

TTH (2)

-

-

1.0

SEC

quaxi resonant signals

Minimum off time

-

TOFF (min)

-

-

1.5

SEC

O.C.P./F.B. terminal

1-5

VTH (1)

0.68

0.73

0.78

V

threshold voltage 1

O.C.P./F.B. terminal

1-5

VTH (2)

1.3

1.45

1.6

V

threshold voltage 2

O.C.P./F.B. terminal extraction

1-2

IOCP/FB

1.2

1.35

1.5

mA

current

O.V.P. operation voltage

4-5

VIN (OVP)

20.5

22.5

24.5

V

Latch circuit sustaining voltage

4-5

IIN (H)

-

-

400

A

Latch circuit release voltage

4-5

VIN (La.off)

6.6

-

8.4

V

Thermal shutdown operating

-

TJ (TSD)

140

-

-

0 C

temperature