the INH PIN of TJA1145

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the INH PIN of TJA1145

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CaoRq
Contributor II

Hi,NXP

    when I put TJA1145 into sleep mode and pull down VCC and VIO , the INH pin should be low;

    but I meet a problem :the INH pin will experience the process of  low - high - low  

    Can you tell me how to solve it?

    Thank you in advance

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guoweisun
NXP TechSupport
NXP TechSupport

你能抓一些波形吗?INH 或者VCC/VIO。在INH 变化的时候做了些什么?

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704 Views
CaoRq
Contributor II

Hi,

   示波器那个波形我没有拍,用图给你描述一下,大概是下图这样INH.jpg

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661 Views
guoweisun
NXP TechSupport
NXP TechSupport

是不是中间又被唤醒了?

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657 Views
CaoRq
Contributor II

中间没有被唤醒,设定的特殊帧唤醒,没有发送can,WAKE脚是接地的

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