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參數(shù)資料
| 型號(hào)： | LCP3121 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | OVERVOLTAGE AND OVERCURRENT PROTECTION FOR TELECOM LINE |
| 中文描述： | 過(guò)壓和過(guò)流保護(hù)的電信線路保護(hù) |
| 文件頁(yè)數(shù)： | 1/6頁(yè) |
| 文件大?。?/td> | 53K |
| 代理商： | LCP3121 |
ApplicationSpecific Discretes
A.S.D.
LCP3121
OVERVOLTAGE AND OVERCURRENT
PROTECTION FOR TELECOM LINE
UNIDIRECTIONAL
PRESSOR PROGRAMMABLE BY VOLTAGE
AND CURRENT:
PROGRAMMABLE BREAKDOWN VOLTAGE
UP TO100 V.
PROGRAMMABLE
CURRENT
FROM120 mA TO600 mA.
MULTI-LINE PROTECTION MODE : ONE DE-
VICECAN PROTECT SEVERALLINES.
HIGH SURGECURRENT CAPABILITY:
I
PP
= 100Afor 10/1000
μ
s.
OVERVOLTAGE
SUP-
LIMITATION
FEATURESAND BENEFITS
SO8
Dedicated to the protection of sensitive telecom
equipment, the LCP3121 provides protection
which can be programmed by both voltage and
current.
Thebreakdownvoltagecanbe easilyprogrammed
by usingan externalzener diode.
Theprotectionfunctionprogrammedbythecurrent
is achievedwith the use of a resistor between the
gate andthe cathode.The value of the resistorwill
determine the level of the desired current before
the triggeringof thedevice.
A multipleprotectionmodeis alsoperformedwhen
using several diodes providing each line interface
with an optimizedprotectionlevel.
If desired,a bidirectionalprotectionfunctioncanbe
achievedby the use of twoLCP3121.
COMPLIESWITHTHEFOLLOWINGSTANDARDS:
DESCRIPTION
September 1998 - Ed: 3
FUNCTIONAL DIAGRAM
A
Gp
C
Gn
CCITTK20 :
10/700
μ
s
5/310
μ
s
10/700
μ
s
5/310
μ
s
1.2/50
μ
s
1/20
μ
s
2/10
μ
s
2/10
μ
s
1kV
25A
2kV
50A
1.5kV
40A
2.5kV
200A(*)
VDE0433 :
VDE0878 :
FCCpart68 :
BELLCORE
TR-NWT-001089 :
2/10
μ
s
2/10
μ
s
2.5kV
200A(*)
BELLCORE
TR-NWT-000974 :
10/1000
μ
s
10/1000
μ
s
1kV
100A
(*) with series resistors or PTC.
PIN-OUTCONFIGURATION
1
2
3
4
5
6
7
8
C
Gn
Gp
A
A
C
C
C
All cathodpins must be externallyconnected
TM: ASD is trademarks of SGS-THOMSONMicroelectronics.
1/6
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