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Daewoo DTC-21Y1/21Y2 User Manual

Page 33

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CP-520/520A/520F Service Manual

DTV R&D Europe

32

4.6.4 PIN DESCRIPTION

PIN

NAME

SYMBOL

DESCRIPTION

1

Overcurrent feedback

O.C.

P/E.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

4.6.5 CONTROL PART - ELECTRICAL CHARACTERISTICS

IC PIN

RATING

DESCRIPTION

NUMBER SYMBOL

MIN.

TYPE

MAX

UNIT

Operation start voltage

4-5

V

IN

(on)

14.4

16

17.6

V

Operation stop voltage

4-5

V

IN

(off)

9

10

111

V

Circuit current in operation

4-5

I

IN

(on)

-

-

30

mA

Circ. current in non-operation

4-5

I

IN

(off)

-

-

100

µ

A

Maximum off time

-

T

OFF

(max)

45

-

55

µ

SEC

Minimum time for input of
quaxi resonant signals

1-5

T

TH

(2)

-

-

1.0

µ

SEC

Minimum off time

-

T

OFF

(min)

-

-

1.5

µ

SEC

O.C.P./F.B. terminal
threshold voltage 1

1-5

V

TH

(1)

0.68

0.73

0.78

V

O.C.P./F.B. terminal
threshold voltage 2

1-5

V

TH

(2)

1.3

1.45

1.6

V

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

1-2

I

OCP/FB

1.2

1.35

1.5

mA

OVP operation voltage

4-5

V

IN

(OVP)

20.5

22.5

24.5

V

Latch circuit sustaining
voltage

4-5

I

IN

(H)

-

-

400

µ

A

Latch circuit release voltage

4-5

V

IN

(Loff)

6.6

-

8.4

V

Thermal shutdown operating
temperature

-

T

J

(TSD)

140

-

-

0

C