參數(shù)資料
型號： TPP
英文描述： OVERVOLTAGE AND OVERCURRENT PROTECTION FOR TELECOM LINE - (ASD)
中文描述： 過壓和過流保護(hù)的電信線路保護(hù)- （ASD）的
文件頁數(shù)： 1/7頁
文件大小： 273K
代理商： TPP
1/7
TPP25011
I
UNIDIRECTIONAL FUNCTION
I
PROGRAMMABLE BREAKDOWN VOLTAGE
UP TO 250 V
I
PROGRAMMABLE CURRENT LIMITATION
FROM 40 mA TO 500 mA
I
SURGE CURRENT CAPABILITY
I
PP
= 30A
10/1000
μ
s
FEATURES
SO-8
Dedicated to sensitive telecom equipment protec-
tion, this device can provide both voltage and cur-
renttriggeredprotectionwithaverytighttolerance.
The breakdown voltage can be easily programmed
by using an external zener diode.
A multiple protection mode can be also performed
when using several zener diodes, providing to
each line interface an optimized protection level.
The current limiting function is achieved with the
use of a resistor between the gate and the cath-
ode. The value of the resistor will determine the
level of the desired current.
DESCRIPTION
SCHEMATIC DIAGRAM
OVERVOLTAGE and OVERCURRENT
PROTECTION for TELECOM LINE
October 2003 - Ed: 5
Application Specific Discretes
A.S.D.
TM: ASD is trademarks of STMicroelectronics.
CCITT K17 :
10/700
5/310
10/700
5/310
0.5/700
0.2/310
2/10
2/10
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
1.5 kV
38 A
2k V
40 A (*)
1.5 kV
38 A
2.5 kV
75 A (*)
VDE 0433 :
CNET :
FCC part 68 :
BELLCORE
TR-NWT-000974 :
10/1000
μ
s
10/1000
μ
s
1
30 A (*)
kV
(*) with series resistors or PTC.
COMPLIES WITH THE FOLLOWING STANDARDS :
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