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TL431: Internal structure and materials

Part Number: TL431

Hi team,

Could you give me comment on following customer questions?

Q1. Is TL431 identical with different grade (TL431AIDR and TL431BIDR) in terms of internal structure and materials?

Q2. If all grade of TL431 is identical, could you give me comment on how to divide those grade product? I assume test process is the same but spec limit is different depending on grade.

Q3. Are TL431BIDR and TL431BIDRG4 same?

Best regards, 

  • Hi  Shimada-san,

    Q1. Is TL431 identical with different grade (TL431AIDR and TL431BIDR) in terms of internal structure and materials?

    The material is the same but the there is a different mask set for the two variants.

    Q2. If all grade of TL431 is identical, could you give me comment on how to divide those grade product? I assume test process is the same but spec limit is different depending on grade.

    See answer to Q1 above. The testing is same.

    Q3. Are TL431BIDR and TL431BIDRG4 same?

    Yes, the material is the same bit the Eco Plan is designated to the TL431BIDG4.  In the past, G4 was given to indicate that the part was RoHS compliant.  Now, products from TI are RoHS compliant.

    Ben

  • Hi Ben

    Thanks for your comment. 

    I think TL431AIDR and TL431BIDR are the same manufacturing process, is that correct?

    Best regards, 

  • Hi Shimada-san,

    Yes, same process but different mask set.

    Ben

  • Hi Shimada-san,

    If there are no further questions, please close the thread by clicking on "resolved".  Thanks!

    Ben