Hi,all
I meet a problem about TJA1021 local wake-up. in datasheet TJA1021 wakeup by a low level. but I found that it can be wake-up by a high level.
BRs,
xianlong
The WAKE_N has internal pull up to battery. If the battery is high it always high also.
Hi@guoweisun
In our design, WAKE_N can be low during sleep. we test that High level can wake-up tja1021
Is possible for your catch some waveforms for high level wake up?
Hi,@guoweisun
Thank you for your answer.
I just asked my colleague. He say, Kevin has answered the question few years ago ,phenomena do exist.
in my test green is INH,yellow is SLP, blue is WAKE_N
BRs,
xianlong