DP83848Q-Q1: Power rails timing requirements

Rong Wang

Part Number: DP83848Q-Q1

This question is a follow up of the link below.

DP83848Q-Q1: Power consumption of DP83848 - Interface forum - Interface - TI E2E support forums

I have decided to add a MOSFET to switch the power supply of DP83848. However, I am not able to find the timing requirement for the power rail from the datasheet. Can you please kindly advice?

Thanks~~~

8 months ago

0 Gerome Cacho 8 months ago

TI__Mastermind 43585 points

Hello,

Thank you for your reply. A representative from the applications team will be with answering soon.

Sincerely,

Gerome

0 David (ASIC) Liu 8 months ago in reply to Gerome Cacho

TI__Guru**** 190811 points

Hi,

Please see below figure for the power up timing requirement.

Thanks

David

0 Rong Wang 7 months ago in reply to David (ASIC) Liu

Prodigy 50 points

Hi, David,

Many thanks~

Does this mean there is no requirement for the rising time of VCC?

Thanks~

0 David (ASIC) Liu 7 months ago in reply to Rong Wang

TI__Guru**** 190811 points

Hi,

I do not see a specific ramp rates being defined in the DP83848-Q1 datasheet.

Thanks

David