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adum5000发烫

justdoit 在 2015-1-18 詢問的問題
最後回覆由adi_susan於2015-1-19提供

我采用adum5000设计了一个电路,连续焊接了2块芯片,上电就烫手烫的厉害。数据手册上写到1和7脚,10和16脚在内部连接,但是我用万用表测量这2个引脚有40-70kΩ的电阻。我的电路如下图所示。请问为何芯片会发烫,为何1和7脚,10和16脚会有40-70kΩ的电阻。Pin 1 and Pin 7 are internally connected to each other, and it is recommended that both pins be externally connected to a common power source.

Pin 10 and Pin 16 are internally connected to each other and connecting both externally is recommended.

adum5000电路.png

結果