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參數資料
| 型號： | LCP3121RL |
| 英文描述： | OVERVOLTAGE AND OVERCURRENT PROTECTION FOR TELECOM LINE - (ASD) |
| 中文描述： | 過壓和過流保護的電信線路保護- （ASD）的 |
| 文件頁數： | 1/6頁 |
| 文件大小： | 67K |
| 代理商： | LCP3121RL |
1/6
Application Specific Discretes
A.S.D.
LCP3121
OVERVOLTAGE AND OVERCURRENT
PROTECTION FOR TELECOM LINE
I
UNIDIRECTIONAL
PRESSOR PROGRAMMABLE BY VOLTAGE
AND CURRENT:
I
PROGRAMMABLE BREAKDOWN VOLTAGE
UP TO 100 V.
I
PROGRAMMABLE
CURRENT
FROM 120 mA TO 600 mA.
I
MULTI-LINE PROTECTION MODE : ONE DE-
VICE CAN PROTECT SEVERAL LINES.
I
HIGH SURGE CURRENT CAPABILITY :
I
PP
= 100A for 10/1000
μ
s.
DESCRIPTION
OVERVOLTAGE
SUP-
LIMITATION
FEATURES AND BENEFITS
SO-8
Dedicated to the protection of sensitive telecom
equipment, the LCP3121 provides protection
which can be programmed by both voltage and
current.
Thebreakdownvoltagecanbeeasilyprogrammed
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.
April 2003 - Ed: 4
FUNCTIONAL DIAGRAM
A
Gp
C
Gn
CCITT K20 :
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
6kV
150A
2kV
50A
1.5kV
40A
2.5kV
200A (*)
VDE 0433 :
VDE 0878 :
FCC part 68 :
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.
COMPLIESWITHTHEFOLLOWINGSTANDARDS:
PIN-OUT CONFIGURATION
1
2
3
4
5
6
7
8
C
Gn
Gp
A
A
C
C
C
All cathod pins must be externally connected
TM: ASD is trademarks of STMicroelectronics.
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