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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


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