POWER SEQUENCE FOR TJA1043 AND TJA1044

[ypchang]

I want to use TJA1043 and TJA1044 as CAN transcivers. The pin VIO is powered by 3.3V, the pin VCC is powered by 5V, I want to know the power-up sequence between 5V and 3.3V. whether 5V first ,3.3V second or 3.3V first, 5V second. Thank you! I want to use TJA1043 and TJA1044 as CAN transcivers. The pin VIO is powered by 3.3V, the pin VCC is powered by 5V, I want to know the power-up sequence between 5V and 3.3V. whether 5V first ,3.3V second or 3.3V first, 5V second. Thank you!

[guoweisun]

Hi,

No power on sequence about VCC/VIO.

But you'd better pay attention on the normal and standby mode according different VCC and VIO value.