PN7462 power sequence with PVDD_IN powered externally

[johannesdev]

Hi!

I would like to supply PVDD_IN and PVDD_M_IN using an external 3V3 regulator. The datasheet states that PVDD_OUT must be connected to GND in this case (sub-diagram 3):

However, I ask myself if there is any power sequencing to take into account. Although the external 3V3 will always follow the 5V Vbus voltage on my PCB, is there any delay time or sequence from PVDD_IN to 1V8 (DVDD) or from PVDD_IN to Vbus to respect?

Thanks and best regards,
Johannes

[vicentegomez · Accepted solution]

Hi

should be no problem

PVDD_IN supply voltage is independent from VBUS supply level.

Have a good day.