TPS54320: Lead Frame TPS54320RHLR

Mercedes Trevino

Prodigy 50 points

Part Number: TPS54320

Just want to verify if there was a change to the lead frame for PN TPS54320RHLR from 2020 to 2021,

They are slightly different;

date code 2030

2139

Any help is appreciated.

over 2 years ago

0 Nancy Zhang over 2 years ago

TI__Mastermind 47760 points

Hi Mercedes,

I will check with the team and get you back next week.

Thanks,

Nancy

0 Mercedes Trevino over 2 years ago in reply to Nancy Zhang

Prodigy 50 points

Thank you!!

0 Shuai Fan over 2 years ago in reply to Mercedes Trevino

TI__Genius 13451 points

Please wait, Nancy will reply you soon!

Shuai

0 Dietmar Walther over 2 years ago

TI__Genius 14165 points

Hi Mercedes,

can you please provide pictures of the top site markings for each?

0 Mercedes Trevino over 2 years ago in reply to Dietmar Walther

Prodigy 50 points

Sure thing!

0 Mercedes Trevino over 2 years ago in reply to Mercedes Trevino

Prodigy 50 points

0 Dietmar Walther over 2 years ago in reply to Mercedes Trevino

TI__Genius 14165 points

Mercedes,

thanks a a lot. Short site question is there any specific reason for the question, means do you see any problem with one of the 2 parts?

0 Mercedes Trevino over 2 years ago in reply to Dietmar Walther

Prodigy 50 points

I don't see that the parts pose a problem with the fit/function but I know our customer is going to notice and bring up the question as to why the internal structure is not consistent and I want to have the answer ready for them and also understand why as well for learning.

I'm doing counterfeit testing on these and want to insure they're authentic.

+1 Dietmar Walther over 2 years ago in reply to Mercedes Trevino

TI__Genius 14165 points

Mercedes,

thanks for background, I can tell that these parts have valid device markings matching our internal database checks.

To ensure parts are from TI we recommend to always refer to STC or PO to ensure the parts we bought and distributed via TI authorized channels.

Back to your original question: Yes there was a change in lead frame to support the delivery situation by extending capacity. For sure the change was fully qualified. No PCN was subjected because zero impact to data sheet parameters or functionality.

0 Mercedes Trevino over 2 years ago in reply to Dietmar Walther

Prodigy 50 points

Thank you so much!!

Power management

Power management forum

TPS54320: Lead Frame TPS54320RHLR