DP83869HM: Power Sequence for DP83869HMRGZT

Esther Lu

Prodigy 35 points

Part Number: DP83869HM

What is the consequence to DP83869HMRGZT if VDD1P1 power up after VDDIO(3.3V) and VDDA1P8(1.8V)?

thanks,

Esther

25 days ago

0 Esther Lu 25 days ago

Prodigy 35 points

this is the power up sequence that i have.

VDDA1P8(1.8V) VDDA2P5(2.5V) power up same time -> 7.4mS later power up VDDIO(3.3V)-> 1mS later power up VDD1P1(1.1V)

0 Gregory Kobyakov 24 days ago in reply to Esther Lu

TI__Genius 14790 points

Hi Esther,

This power-up sequence does not seem to follow the recommended sequencing. I can check internally what the specific risks are of powering VDD1P1 after other supplies

Best regards,

Greg

Interface

Interface forum

DP83869HM: Power Sequence for DP83869HMRGZT