topic Re: The INH function of TJA1043T in Other NXP Products

The INH function of TJA1043T

chenyu1 — Tue, 14 Feb 2023 05:00:44 GMT

Our client needs to use the INH function of TJA1043T. Theoretically, when CAN is in sleep mode, the INH pin is in float state. When the chip detects the start frame on the CAN bus, the INH will be raised. I would like to ask you the following two questions. Thank you!

Question 1:

Is the level of the INH pin always high when the INH is pulled high? Or just pull it up for a period of time, what is that period of time?

Question 2:

Does the TJA1043T have any power timing requirements for VCC and VIO?

Re: The INH function of TJA1043T

guoweisun — Tue, 14 Feb 2023 05:20:46 GMT

1: Always high.

2: No power timing requirements.

Re: The INH function of TJA1043T

chenyu1 — Tue, 14 Feb 2023 06:17:40 GMT

Thank you Guowei. In addition, how long will it take for the INH to rise after receiving the external CAN wake-up signal?

Re: The INH function of TJA1043T

chenyu1 — Tue, 14 Feb 2023 08:01:18 GMT

Thank you Guowei.

In addition, how long will it take for the INH to rise after receiving the external CAN wake-up signal?