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CSD18531Q5A: Query on the Steady state current to be considered

Vinaya Parvathy N
Prodigy 145 points
Part Number: CSD18531Q5A

Tool/software:

Hi,

The absolute maximum rating of datasheet mentions three currents - silicon limited, package limited and continuous drain current, Which one is recommended by TI for considering for worst case circuit analysis and derating evaluations?

 

  • 0
    TI__Mastermind 37910 points

    Hello Vinaya,

    Thanks for your interest in TI FETs. Please see the blog at the link below for a more detailed explanation how TI specs maximum continuous current for our FETs. The package limited current is self-explanatory and the other two ratings are calculated as explained in the blog. Power dissipation is also an important consideration. The 5x6mm SON package can dissipate about 3W max with a good layout on a multilayer PCB. The second link provides max power dissipation for TI FET packages. Please review and let me know if you have any questions.

    Best Regards,

    John Wallace

    TI FET Applications

    https://www.ti.com/lit/pdf/ssztcp0

    https://www.ti.com/lit/pdf/sszt389