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TJA1043 state after power-on

Question asked by Nemanja Savic on Jan 15, 2018
Latest reply on Jan 18, 2018 by Nemanja Savic

Hi all,


I am using TJA1043 in my project, and the issue I am experiencing is the following:

On power-on, only Vbat is present, despite that, in the first moment, INH signal is set high and only after about 200ms it is set floating.

My question is why TJA1043 does not immediately go to sleep-mode after power-on when only Vbat is present? How can I force it to do that?


Our setup is pretty simple, and the circuit is identical to the one provided in the application note.