LCDP1511D

®

September 1999 - Ed:2A

DUAL LINE PROGRAMMABLE TRANSIENT

VOLTAGE SUPPRESSOR FOR SLIC PROTECTION

SO8

Dual line programmable transient suppressor

µs)

FEATURES

The LCDP1511D is a dual line protector which pro-

tects subscriber line interface circuits (SLIC)

against transient overvoltages.

Positive overvoltages are clamped with diodes to-

wards GND, while negative overvoltages are sup-

pressed by thyristors connected to GND. The

breakdown voltage of the thyristors is determined

DESCRIPTION

Application Specific Discretes

A.S.D.

TM

COMPLIES WITH THE

FOLLOWING STANDARDS:

Peak Surge

Voltage

(V)

Voltage

Waveform

(

µs)

Current

Waveform

(

µs)

Admissible

Ipp

(A)

Necessary

Resistor

(

Ω)

ITU-T K20

1000

10/700

5/310

25

-

VDE0433

2000

10/700

5/310

25

40

VDE0878

1500

1.2/50

1/20

40

-

IEC1000-4-5

level 2

level 2

10/700

1.2/50

5/310

8/20

25

25

-

-

FCC Part 68

1500

800

10/160

10/560

10/160

10/560

30

20

-

5

BELLCORE NWT-001089-CORE

2500

1000

2/10

10/1000

2/10

10/1000

70

15

25

45

TIP 1

RING 1

8

1

TIP 2

RING 2

5

4

GATE

GATE

2

3

GND

GND

7

6

FUNCTIONAL DIAGRAM

1/6