TDA2EG-17: Sequencing question of TDA2EG-17

Jimmy Lai

Part Number: TDA2EG-17
Other Parts Discussed in Thread: LP8732-Q1, LP8733-Q1

Dear Team,

Our customer have some question as below,

In theory, it should start at the same time, but there is a 1.5ms start difference, according to (LP8733-Q1 and LP8732-Q1 User’s Guide to Power DRA71x, DRA79x, and TDA2E-17)
Will this cause unexpected recharge or damage to the SOC startup?

Many Thanks,

Jimmy

over 3 years ago

0 Kygo Cheng over 3 years ago

TI__Expert 6830 points

Any update?

0 AJS214 over 3 years ago

TI__Intellectual 1651 points

Jimmy,

Is there a reason the Power Up Sequence is not being followed? I would take a guess that the power down sequence is not compliant per the DM as well. The device will still power up as the customer is seeing but eventually, not following the recommended power sequence can result in POH reliability. TI would recommend to follow the Power Sequence as provided.

Thanks,

Alec

Processors

Processors forum

TDA2EG-17: Sequencing question of TDA2EG-17