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首頁 > 應用 > 數碼家電 > 10/100/1000以太網ESD保護
 

 

適用於ESD和雷擊高達10A、20A和40A的10/100/1000以太網解決方案
解決方案:

 

 


設計說明:

保護應用:

在以太網端口用於數據信號1.0V和2.5V之間變化,隨著千兆(或1GB)的最大數據速率。在此速度下,需要抑制的電容來加以考慮。受到保護,免受ESD和雷電瞬變信號線包括TX +/ - 和RX +/ - 。

解决方案说明:

Top: The SP4060 is an 8 channel TVS Diode Array capable of protecting all 8 channels of a 1000Base-T (1Gb) Ethernet port. It provides ESD protection and lightning immunity up to the GR-1089 intra-building requirements (100A, tp=2/10us) if a robust transformer is used. Lab testing could also prove the SP4060 to be effective suppressing inter-building (500A, tp=2/10us) lighting surges as well, but this would have to be verified via testing since it will be heavily dependant on the transformer.

Middle: The SP3050 is a 4 channel TVS Diode Array capable of protecting up to 4 channels. It provides ESD protection and lightning immunity up to the GR-1089, intra-building requirements (100A, tP=2/10us) if a robust transformer is used.

Bottom: The SP3050 is a 4 channel TVS Diode Array capable of protecting up to 4 channels from differential (metallic) lightning surges and ESD. If used on the secondary side of the transformer, the SPLV2.8-4 will provide ESD prote

配套解决方案:

除了上述建议外,LF产品组合中还提供了其它解决方案。 If the transformer is not capable of withstanding GR-1089 (intra and inter-building) lightning surges, then more robust Ethernet solutions involving the SP03 or SEP Series should be considered. It should also be noted that the SPLV2.8-4 provides differential (metallic) protection only. If common mode (longitudinal) transients are a concern, the other solutions like the SP3050 or SP4060 can be used.

监管问题:

GR1089 (Intra- or Inter-building, Port Type 3b/5b) will be the most applicable standard for lightning immunity of Ethernet ports but ITU K.20, .21, YS/T950, YD/T993, and IEC 61000-4-5 may also apply depending on the geographical destination for the final application. The IEC 61000-4-2 will be the most appropriate standard for ESD protection, and this is also cited in GR-1089.

特性:

应用警告:

     
 
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