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LCP3121 Datasheet

  • LCP3121

  • OVERVOLTAGE AND OVERCURRENT PROTECTION FOR TELECOM LINE

  • 6頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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LCP3121
OVERVOLTAGE AND OVERCURRENT
PROTECTION FOR TELECOM LINE
Application Specific Discretes
A.S.D.鈩?/div>
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 :
I
PP
= 100A for 10/1000
碌s.
DESCRIPTION
Dedicated to the protection of sensitive telecom
equipment, the LCP3121 provides protection
which can be programmed by both voltage and
current.
The breakdown voltage can be easily programmed
by using an external zener diode.
The protection functionprogrammed 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 bidirectionalprotection functioncan be
achieved by the use of two LCP3121.
COMPLIESWITHTHE FOLLOWINGSTANDARDS :
CCITT K20 :
VDE 0433 :
VDE 0878 :
FCC part 68 :
BELLCORE
TR-NWT-001089 :
BELLCORE
TR-NWT-000974 :
(*) with series resistors or PTC.
TM: ASD is trademarks of SGS-THOMSON Microelectronics.
SO8
PIN-OUT CONFIGURATION
C
1
8 C
Gn 2
Gp 3
7 A
6
A
C
4
5 C
All cathod pins must be externally connected
FUNCTIONAL DIAGRAM
10/700碌s
5/310碌s
10/700碌s
5/310碌s
1.2/50碌s
1/20碌s
2/10碌s
2/10碌s
2/10碌s
2/10碌s
10/1000碌s
10/1000碌s
1kV
25A
2kV
50A
1.5kV
40A
2.5kV
200A (*)
2.5kV
200A (*)
1kV
100A
A
Gp
Gn
C
1/6
September 1998 - Ed: 3

LCP3121 產(chǎn)品屬性

  • STMicroelectronics

  • ESD 抑制器

  • SO-8

  • Tube

  • 100

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