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參數(shù)資料
| 型號： | PLC497 |
| 英文描述： | Direct ProTek Replacement:PLC497 |
| 中文描述： | 直接太克替代：PLC497 |
| 文件頁數(shù)： | 4/5頁 |
| 文件大?。?/td> | 74K |
| 代理商： | PLC497 |
The PLC496 is an ultra low capacitance, bidirectional array that is designed to protect I/O or high speed data lines from the damaging effects of ESD
or EFT. This product has a surge capability of 500 Watts P
PP
per line for an 8/20μs waveshape and offers ESD protection > 40kV.
!""#
CIRCUIT BOARD LAYOUT RECOMMENDATIONS
Circuit board layout is critical for Electromagnetic Compat-
ibility (EMC) protection. The following guidelines are
recommended:
The protection device should be placed near the input
terminals or connectors, the device will divert the
transient current immediately before it can be coupled
into the nearby traces.
The path length between the TVS device and the
protected line should be minimized.
All conductive loops including power and ground loops
should be minimized.
The transient current return path to ground should be
kept as short as possible to reduce parasitic induc-
tance.
Ground planes should be used whenever possible.
For multilayer PCBs, use ground vias.
DIFFERENTIAL MODE CONFIGURATION (Figure 1)
The PLC496 is designed to protect one bidirectional line where the normal signal
voltage is both positive and negative. Figure 1 shows a typical differential mode
line to line) I/O port protection circuit application. Pins 1, 4 5 and 8 are con-
nected to the data lines while Pins 2, 3, 7 and 6 are not connected.
COMMON MODE CONFIGURATION (Figure 2)
The PLC496 can provide protection for sensor circuit applications. Figure 2, a
typical common mode (line to ground) sensor circuit applications, shows pins 1
and 8 of the TVS connected to the line and pins 4 and 5 connected to ground, no
connections to pins 2, 3, 6, and 7.
LINE 2 IN
Figure 1. Typical Differential Mode I/O Port Protection
1
2
3
8
4
7
6
5
LINE 1 OUT
LINE 1 IN
LINE 2 OUT
NC
NC
NC
NC
1
8
2
3
4
7
6
5
1
8
2
3
4
7
6
5
Figure 2. Typical Common Mode Sensor Protection Circuit
SENSOR
CIRCUITRY
NC
NC
NC
NC
NC
NC
NC
NC
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| PLC497_07 | 制造商:PROTEC 制造商全稱:Protek Devices 功能描述:ULTRA LOW CAPACITANCE TVS ARRAY |
| PLC497_10 | 制造商:PROTEC 制造商全稱:Protek Devices 功能描述:ultra low capacitance steering diode/TVS array |
| PLC497_12 | 制造商:PROTEC 制造商全稱:Protek Devices 功能描述:ULTRA LOW CAPACITANCE STEERING DIODE/TVS ARRAY |
| PLC497-LF-T7 | 制造商:ProTek Devices 功能描述:PLC497 Series 2 Ch 5 Vcl 1.3 Vbr Uni-directional Steering Diode Array - SOT-23 |
| PLC4H-S25-C | 制造商:Panduit Corp 功能描述: |
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