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TLC2932: TLC2932 vs TLC2932A

na na78
Guru 16770 points
Part Number: TLC2932

Hi

The customer requests answer to the following questions about TLC2932A.

Could you please give me feedback? (Related to PDN Number : 20180821000.3)

1.

Is the die of TLC2932A changed from TLC2932?

2.

Following two specification in TLC2932 are eliminated in TLC2932A.

- Continuous total power dissipation... 700 mW

- Lead temperature 1,6 mm　from case for 10 seconds... 260℃

Could it be possible to apply these ratings to TLC2932A?

3.

In TLC2932, Lock frequency shows (x1 output) and (x1/2 output) but not in TLC2932A.

Could it be possible to regard lock frequency as 7.5MHz to 27.5MHz at VDD=5V if x1/2 output is set?

BestRegards

  • 0
    TI__Genius 16845 points
    Hello,

    This is an older device that was supported by another team. I do not have enough history with the part to answer all of your questions, but I will try to help where I can.

    Q3. In TLC2932, Lock frequency shows (x1 output) and (x1/2 output) but not in TLC2932A.
    Could it be possible to regard lock frequency as 7.5MHz to 27.5MHz at VDD=5V if x1/2 output is set?

    A3. Yes, your understanding is correct

    Kind regards,
    Lane
  • 0 in reply to Lane Boyd
    TI__Genius 12580 points

    Hi,

    Could you please give me your advice for Q2?

    - If there is not total power dissipation in TLC2932A, should user check PCO or FGD Max supply current (IDD)?


    - For temperature, I can get infomation from http://www.ti.com/product/TLC2932A/pinout-quality.
    Is the "Level-1-260C-UNLIM same condition as TLC2932?

    I understand currently BU doesn't have detail infomation for TLC2932x. But I should prepare answer for customer. So, could you please give me your helps?

    Regards,
    Nagata.

  • 0 in reply to Shunsuke Nagata
    TI__Mastermind 27691 points
    Nagata-san,

    We are not sure as this product is inhereted from another group, so we can only give our best estimation. I do not know the motivation for replacing the TLC2932 with the TLC2932A.

    - As both devices have the same max voltage and max current, one would think that you would not want to exceed 700 mW for the TLC2932A

    - As for the temperature question, I really do not know, but I would think it is the same condition.

    Regards,
    Dean