TSS721A: TSS721ADR

Eileen Ai

Prodigy 10 points

Part Number: TSS721A

Tool/software:

Hello Dears

Regarding Part number : TSS721ADR Current DC:2339+ COO :TW

After check we found marking & X-ray format does not match history and we didn’t find any PCN about marking & X-ray

For now are having left one X-RAY , right one is old history

Could you help to check what is the reason here?

Looking forward to y our reply~

Thank you~

over 2 years ago

0 Eric Hackett over 2 years ago

TI__Guru* 76392 points

Eileen,

Can you share the topside of the old and new devices? There have been 2 different PCNs for this device since 2012: one for the mold compound, and one for the topside marking. The mold compound could change the leadframe assembly, but we'll need to see the date codes of both devices before we know for sure what could be the reason for the different leadframe.

One thing to note, though the internal leadframe structure is different, the function and characterization of the device remains the same.

Regards,

Eric Hackett

0 Eileen Ai over 2 years ago in reply to Eric Hackett

Prodigy 10 points

Hello Eric

Thanks for your reply~

Pls check following photo

Details :TSS721ADR DC 2339+ COO :TW

Details :TSS721ADR DC2221+ COO :TW

Looking forward to your reply~

Thank you~

Eileen

0 Eric Hackett over 2 years ago in reply to Eileen Ai

TI__Guru* 76392 points

Eileen,

Based on the topside markings, the old device is from 2012, while the new is from 2013, does that make sense based on the customer order history? If so, the difference is due to the mold compound change in the end of 2012. Again, when these kinds of changes occur, the device is verified that no specified parameters or functions change before it is fully released.

Please let us know if you have any other questions.

Regards,

Eric Hackett