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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.
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如何计算小信号MOSFET的通道到环境的热阻Rth(ch-a)？
您可以根据漏极损耗计算通道-环境热阻Rth(ch-a)。
Rth(ch-a) 可参考数据表，通过以下公式求出。
公式：Rth(ch-a)＝（Tch最大值-Ta）/PD最大值
- Rth(ch-a)：通道到环境的热阻
- Tch最大值：最大结温
- Ta：环境温度（PD最大值的温度条件）
- PD最大值：最大功耗
另请参阅下面的文档。