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參數(shù)資料
| 型號(hào)： | LCP152 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Programmable transient voltage suppressor for SLIC protection |
| 中文描述： | 可編程的用戶接口保護(hù)瞬態(tài)電壓抑制器 |
| 文件頁(yè)數(shù)： | 7/11頁(yè) |
| 文件大小： | 154K |
| 代理商： | LCP152 |
LCP1521S/LCP152DEE
Technical information
7/11
imposed by the various country standards. Taking into account this fact the actual lightning
surge current flowing through the LCP is equal to:
I
surge
= V
surge
/ (R
g
+ R
s
)
With:
V
surge
= peak surge voltage imposed by the standard.
R
g
= series resistor of the surge generator
R
s
= series resistor of the line card (e.g. PTC)
e.g. For a line card with 30
of series resistors which has to be qualified under GR1089
Core 1000V 10/1000 μs surge, the actual current through the LCP152 is equal to:
I
surge
= 1000 / (10 + 30) =
25 A
The LCP152 is particularly optimized for the new telecom applications such as the fiber in
the loop, the WLL, the remote central office. In this case, the operating voltages are smaller
than in the classical system. This makes the high voltage SLICs particularly suitable.
The schematics of
Figure 7.
give the most frequent topology used for these applications.
Figure 7.
Protection of high voltage SLIC
Surge peak current versus overload
duration
Rs (*) = PTC or fuse resistor
Gate
GND
GND
TIP
RING
-Vbat
LCP152xx
220nF
SLIC
Rs (*)
Rs (*)
Line
Line card
TIP
RING
GND
Figure 8.
Figure 9.
Relative variation of holding
current versus junction
temperature
I
(A)
TSM
0
1.E-02
4
8
12
16
20
24
1.E-01
1.E+00
1.E+01
1.E+02
1.E+03
t(s)
F=50Hz
T
j
initial=25°C
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
0.7
0.8
0.9
1
1.1
1.2
1.3
T (°C)
I [T ] / I [T =25°C]
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LCP1521 | 功能描述:ESD 抑制器 Dual Program TVS RoHS:否 制造商:STMicroelectronics 通道:8 Channels 擊穿電壓:8 V 電容:45 pF 端接類型:SMD/SMT 封裝 / 箱體:uQFN-16 功率耗散 Pd: 工作溫度范圍:- 40 C to + 85 C |
| LCP1521RL | 功能描述:ESD 抑制器 Dual Program TVS RoHS:否 制造商:STMicroelectronics 通道:8 Channels 擊穿電壓:8 V 電容:45 pF 端接類型:SMD/SMT 封裝 / 箱體:uQFN-16 功率耗散 Pd: 工作溫度范圍:- 40 C to + 85 C |
| LCP1521S | 功能描述:TVS 二極管 - 瞬態(tài)電壓抑制器 SLIC Protection IC RoHS:否 制造商:Vishay Semiconductors 極性:Bidirectional 工作電壓: 擊穿電壓:58.9 V 鉗位電壓:77.4 V 峰值浪涌電流:38.8 A 系列: 封裝 / 箱體:DO-214AB 最小工作溫度:- 55 C 最大工作溫度:+ 150 C |
| LCP1521S_06 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Programmable transient voltage suppressor for SLIC protection |
| LCP1521SRL | 功能描述:ESD 抑制器 SLIC Protection IC RoHS:否 制造商:STMicroelectronics 通道:8 Channels 擊穿電壓:8 V 電容:45 pF 端接類型:SMD/SMT 封裝 / 箱體:uQFN-16 功率耗散 Pd: 工作溫度范圍:- 40 C to + 85 C |
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