DRA821U: Power supply for each Domain

user6537612

Prodigy 200 points

Part Number: DRA821U
Other Parts Discussed in Thread: DRA821

Yukitoshi

Please give me any information about the power mnagement for DRA821.

DRA821 have three Cores( MCU,MAIN,WAK-UP). We use not only MCU for our process,but also MAIN for some peripherals

belonging to MAIN Domain.

I don not think two Domains needs each power management ICs.

Is that correct ?

over 2 years ago

0 Karthik Ramanan over 2 years ago

TI__Guru** 113800 points

Hi Yukitoshi,

You can use the same PMIC solution as in the DRA821 EVM. Kindly refer to the same as the starting point.

Regards

Karthik

0 user6537612 over 2 years ago in reply to Karthik Ramanan

Prodigy 200 points

Hi Karthic,

Thank you for your response.

We use two Domains in DRA821. We do not have to use two PMIC foreach Domains (MCU Domain and MAIN Domain) ,is it correct ?

I am afraid of functional safety . I use Main domain for the peripherals which belong to Main domain.

Regards

Yukitoshi

0 Chris Sterzik over 2 years ago in reply to user6537612

TI__Guru 53605 points

Hello,

Please refer to this document. Please note the two PMICs which support both the MCU and MAIN domains, in addition to other load switches and discrete regulators.

Regards,
Chris

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DRA821U: Power supply for each Domain