PS/2端口

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Circuit Protection of PS/2



Design Notes:

Protection Application:
PS/2端口中使用的数据信号的最大幅度为5V，数据速率为10,000 bps。按照此数据速率，不需要考虑抑制器的电容。要保护不受ESD的信号线包括数据和时钟。5VDC功率应受到保护，以防止ESD和过电流事件。
解决方案说明：
As shown at the left, multilayer varistors can be used on the power bus and data lines for ESD protection. A PTC is used for resettable overcurrent protection. An alternate solution is to use a diode array for ESD protection for the data lines and power bus for part count reduction.
伴侣解决方案：
Does not apply.
Regulatory Issues:
The IEC 61000-4-2 will be the most appropriate standard that applies for this port. It supplies a test method for verifying that the end product is not susceptible to ESD events.
独特的功能：
Does not apply.
申请警告：
Does not apply.

解决方案

解决方案

  • SP0503BAHT

    表面安装电视雪崩二极管阵列

  • SP0503BAHTG

    30pf，30kV，单向电视阵列，用于ESD保护