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TPS2491: Condition of Ts(MAX)

Guru 15170 points

Replies: 2

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Part Number: TPS2491

Dear Specialists,

My customer is considering TPS2491 and has a question.

I would be grateful if you could advise.

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According to the equation(3) of datasheet P.12, PLIM is determined by Tjmax, Tsmax and ILIM.

At this time, how should Tsmax be calculated?

Should I use equation(9) in datasheet P.21?

I couldn't determine whether equation(3) of Tsmax is equation(9) of Tcmax.

Could you please let me know?

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I appreciate your great help in advance.

Best regards,

Shinichi

  • Hi Shinichi,

    Thanks for reaching out!

    TS(MAX) and TC,MAX are same. Please use equation (9) to calculate it and use the calculated value in equation (3). I suggest to make use of design calculator to arrive at the final values. It is available at http://www.ti.com/product/TPS2491/toolssoftware

    BR, Rakesh

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  • In reply to Rakesh:

    Hi Rakesh,

    Thank you for your reply.

    I understand TS(MAX) and TC(MAX) are the same.

    I know the caluclator in the Product Folder.

    In this case, the customer is considering using the datasheet and asked.

    I also introduced the excel tool.

    I appreciate your great help.

    Best regards,

    Shinichi

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