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TPS2597: Inquiries about using TPS25970ARPWR

JH Shin
Guru 11100 points
Part Number: TPS2597

Hello,

My customer reviews to use the TPS25970ARPWR.

They have some questions about the TPS25970ARPWR device.

Q1) Is this part universally used? Are EOL issues likely to occur in the near future?

Q2) Even though it is a 7A product, the package is quite small. Do you have a verified history of being applied to mass production? Is it stable without damage to the chip even if it uses more than 5A?

Q3) Looking at the Layerout structure and EVM Data, the PCB space seems to be insufficient. Currently, the top pad thickness of the PCB to which the chip below is to be applied is 3/8 oz. Are there any problems that may occur due to the small contact area of the In/out Pin?

Q4) Is there any heat problem due to the small package?

      They couldn't find information about the power dissipation value below among thermal related materials. please tell us this value

Thank you.

  • 0
    TI__Guru* 79181 points

    Hi JH,

    1. This part is new part used by many big enterprise customers. No EOL in near future.

    2. Device package can easily handle 7A. We do thorough qual testing at 7A.

    3. EVM design should be fine.

    4. Power dissipation you have to calculate. It is I*I*RDSON. Tj=TA+ (RQJA*PD)

    Regards

    Kunal Goel

  • 0 in reply to Kunal Goel
    Guru 11100 points

    Hi Kunal Goel,

    Thanks for your reply.

    The customer has additional questions.

    Q3 ) The top pad thickness of the PCB they apply the device to is 3/8oz. When proceeding according to the routing guide below, please give your opinion on whether there may be damage to the PCB pad where the chip is attached.

    There is no reference data because interlayer PCB thickness information could not be found in the EVM Board design data.

    Q4 ) Please tell us what is the power dissipation [W] Pd value of the device. They plan to calculate the Tj value to see if there is a thermal problem.

                Tj=Tcase+ (ThetaJC*PD)

    Thank you.

    JH

  • 0 in reply to JH Shin
    TI__Guru* 79181 points

    Hi JH,

    1. Sorry did not get Q1.

    2. PD= I*I*RDSON

    Regards

    Kunal Goel