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ESD防靜電保護器件選型步驟

2022-10-17 13:53:52 admin

在ESD器件選型時寄生電容可以根據應用接口選擇，如下圖：

保險絲

ESD器件選型步驟：

1，計算接口信號幅值的范圍來確定ESD器件的工作電壓；

2，根據信號類型決定使用單向或者雙向ESD器件;

3，根據信號速率決定該接口能承受的最大寄生電容；

4，根據電路系統的最大承受電壓沖擊，選擇適合的鉗位電壓；

5，確保ESD器件可達到或超過IEC 61000-4-2 level4。

例如USB2.0接口保護電路：

保險絲

標簽: ESD防靜電保護器選型步驟

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ESD防靜電保護器件選型步驟

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