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The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
TOSHIBA is not responsible for any incorrect or incomplete information. Information is subject to change at any time without notice.
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单向和双向TVS二极管的静电特性如下所示。
与典型的齐纳二极管一样,单向TVS二极管在反向偏置条件下使用。当受保护的IC正常工作时,单向TVS二极管反向偏置,可施加于受保护线路的信号范围为0V至VRWM。然而,TVS二极管同时吸收正负ESD事件。
因此,当在正常操作期间仅对要保护的信号线施加正电压时,可使用单向TVS二极管来吸收正负ESD事件。
当向需受保护的信号线同时施加正负电压时,需使用双向TVS二极管。