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參數(shù)資料
| 型號： | CLP30-200B1 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Overvoltage and Overcurrent Protection for Telcom Line(電信裝備的過壓和過流保護(hù)) |
| 中文描述： | 過壓和過流保護(hù)為電訊，線（電信裝備的過壓和過流保護(hù)） |
| 文件頁數(shù)： | 3/11頁 |
| 文件大?。?/td> | 107K |
| 代理商： | CLP30-200B1 |
Fig.1:
Suscriberlineprotectiontopology
APPLICATIONNOTE
1.INTRODUCTION
The aim of this section is to show the behaviorof
ournewtelecom lineprotectiondevice.
Figure 1 is a simplified block diagram of a
subscriber line protection that is mainly used so
far.
Thisshowstwo differentthings :
A ”primaryprotection”locatedon the MainDis-
tribution Frame (MDF) eliminates coarsely the
high energy environmental disturbances (light-
ning transients and AC power mains distur-
bances) for which the CCITT K20 requires a
4kV10/700
μ
s test.Thiscan beassumedeither
by gas-tubes or silicon protection such as the
TLPxxM.
A ”secondary protection” located on the line
card eliminates finely the remaining transients
that have not been totally suppressed by the
first stage. The CCITT K20 requires a 1 kV
10/700
μ
s test. At this stage, the protection is
managedby the CLP30-200B1.
The explanations which follow are basically
telecommunication
”PRIMARYPROTECTION”
MDF
LINE CARD
EXCHANGE
line
SLIC
”SECONDARYPROTECTION”
CLP30-
200B1
RVOLTAGE
2. SGS-THOMSONCLP30-200B1CONCEPT
2.1 Evolutionof the SLICprotection
Over the years, the performances of the SLICs
considerablyincreased and therefore the need of
the protectionhas alsoevolved.
The CLP30-200B1 is especially designed for the
protectionof thisnew generationof SLIC. For this,
it is based on both overvoltage and overcurrent
protectionmodes.
The figure 2 summarises the performance of the
CLP30-200B1 which basically holds the SLIC
inside its correct voltageand currentvalues.
Fig.2 :
Linecardprotection
- I
SWON
Programmabe thanks to
an external resistor
Programmabe thanks to
anyexternal voltage reference
V
I
Line Card operating conditions
+ I
SWON
- V
SWON
+ V
SWON
CLP30-200B1
3/11
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相關(guān)代理商/技術(shù)參數(shù) |
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| CLP30-200B1_06 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:ASD (Application Specific Devices) Overvoltage and overcurrent protection for telecom line |
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