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參數(shù)資料
| 型號(hào)： | USB0408-LF-T7 |
| 廠商： | PROTEK DEVICES |
| 元件分類： | 參考電壓二極管 |
| 英文描述： | LOW CAPACITANCE TVS ARRAY |
| 中文描述： | 350 W, UNIDIRECTIONAL, SILICON, TVS DIODE |
| 封裝： | ROHS AND REACH COMPLIANT, PLASTIC PACKAGE-4 |
| 文件頁(yè)數(shù)： | 4/5頁(yè) |
| 文件大小： | 104K |
| 代理商： | USB0408-LF-T7 |
USB0403
thru
USB0424C
4
05205.R1 6/06
www.protekdevices.com
CIRCUIT BOARD LAYOUT RECOMMENDATIONS
Circuit board layout is critical for Electromagnetic Compatibility
(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 inductance.
Ground planes should be used whenever possible. For
multilayer PCBs, use ground vias.
The USB04 Series are TVS arrays designed to protect I/O or
data lines from the damaging effects of ESD and EFT. This
product series provides both unidirectional and bidirectional
protection, with a surge capability of 500 Watts P
PP
per line for
an 8/20μs waveform and ESD protection > 40kV.
UNIDIRECTIONAL
COMMON-MODE CONFIGURATION (Figure 1)
The two USB04 Series devices provide protection in a common-
mode configuration as depicted in Figure 1.
Circuit connectivity is as follows:
TVS Device 1: Line 1(D+) is connected to Pins 2 & 3.
TVS Device 2: Line 2(D-) is connected to Pins 2 & 3.
Both TVS Devices: Pins 1 & 4 connected to ground.
BIDIRECTIONAL
DIFFERENTIAL-MODE CONFIGURATION (Figure 2)
The USB04xxC Series provides protection in a differential-mode
configuration as depicted in Figure 2.
Circuit connectivity is as follows:
Line 1(R
X
) is connected to Pins 1 & 4.
Line 2(T
X
) is connected to Pins 2 & 3.
Figure 1 - Unidirectional Configuration (Two TVS Devices)
Common-Mode USB Protection
1
4
3
2
1
4
2
3
D+
USB IC
D-
U
GND
SOLDER PAD
Figure 2 - Bidirectional Configuration
Differential-Mode Ethernet Protection
1
4
3
2
R
R
T
X
R
R
X
E
APPLICATIONS
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| USB0408-T13 | LOW CAPACITANCE TVS ARRAY |
| USB0408-T7 | LOW CAPACITANCE TVS ARRAY |
| USB0412C-LF-T7 | LOW CAPACITANCE TVS ARRAY |
| USB0412C-T13 | LOW CAPACITANCE TVS ARRAY |
| USB0412C-T7 | LOW CAPACITANCE TVS ARRAY |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| USB0408-T13 | 制造商:PROTEC 制造商全稱:Protek Devices 功能描述:LOW CAPACITANCE TVS ARRAY |
| USB0408-T7 | 制造商:PROTEC 制造商全稱:Protek Devices 功能描述:LOW CAPACITANCE TVS ARRAY |
| USB0412 | 制造商:PROTEC 制造商全稱:Protek Devices 功能描述:LOW CAPACITANCE TVS ARRAY |
| USB0412C | 制造商:PROTEC 制造商全稱:Protek Devices 功能描述:LOW CAPACITANCE TVS ARRAY |
| USB0412C-LF-T7 | 制造商:ProTek Devices 功能描述:USB0412C Series 13.3 V 350 W Bi-Directional Low Capacitance TVS Array - SOT-143 |
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