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ESD防静电保护器件选型步骤

2022-10-17 13:53:52 admin

在ESD器件选型时寄生电容可以根据应用接口选择，如下图：

保险丝

ESD器件选型步骤：

1，计算接口信号幅值的范围来确定ESD器件的工作电压；

2，根据信号类型决定使用单向或者双向ESD器件;

3，根据信号速率决定该接口能承受的最大寄生电容；

4，根据电路系统的最大承受电压冲击，选择适合的钳位电压；

5，确保ESD器件可达到或超过IEC 61000-4-2 level4。

例如USB2.0接口保护电路：

保险丝

标签: ESD防静电保护器选型步骤

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