Datasheet > CP3121

CP3121

更新时间： 2024-10-28 06:48:27

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		电信过电流保护
页数	文件大小	规格书
6页	70K
描述
OVERVOLTAGE AND OVERCURRENT PROTECTION FOR TELECOM LINE

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CP3121 数据手册

LCP3121

Application Specific Discretes

A.S.D.™

OVERVOLTAGE AND OVERCURRENT

PROTECTION FOR TELECOM LINE

FEATURES AND BENEFITS

■

UNIDIRECTIONAL OVERVOLTAGE SUP-

PRESSOR PROGRAMMABLE BY VOLTAGE

AND CURRENT:

■

PROGRAMMABLE BREAKDOWN VOLTAGE

UP TO 100 V.

PROGRAMMABLE CURRENT LIMITATION

FROM 120 mA TO 600 mA.

MULTI-LINE PROTECTION MODE : ONE DE-

VICE CAN PROTECT SEVERAL LINES.

HIGH SURGE CURRENT CAPABILITY :

SO-8

I_PP= 100A for 10/1000 µs.

DESCRIPTION

Dedicated to the protection of sensitive telecom

equipment, the LCP3121 provides protection

which can be programmed by both voltage and

current.

PIN-OUT CONFIGURATION

The breakdown voltage can be easily programmed

by using an external zener diode.

The protection function programmed by the

current is achieved with the use of a resistor

between the gate and the cathode. The value of

the resistor will determine the level of the desired

current before the triggering of the device.

A multiple protection mode is also performed when

using several diodes providing each line interface

with an optimized protection level.

If desired, a bidirectional protection function can

be achieved by the use of two LCP3121.

All cathod pins must be externally connected

COMPLIES WITH THE FOLLOWING STANDARDS :

FUNCTIONAL DIAGRAM

CCITT K20 :

VDE 0433 :

VDE 0878 :

FCC part 68 :

10/700µs

5/310µs

10/700µs

5/310µs

1.2/50µs

1/20µs

6kV

150A

2kV

50A

1.5kV

40A

2/10µs

2.5kV

200A (*)

BELLCORE

TR-NWT-001089 :

2/10µs

2.5kV

200A (*)

BELLCORE

TR-NWT-000974 :

10/1000µs

1kV

100A

(*) with series resistors or PTC.

TM: ASD is trademarks of STMicroelectronics.

April 2003 - Ed: 4

1/6

12 3 4 5 6

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