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PCA9554A: Thermal Resistance

Ray Vincent Aranzaso
Genius 16025 points
Part Number: PCA9554A
Other Parts Discussed in Thread: PCA9544A, TCA9544A, TCA9554A

Hi,

Good Day. What is the junction to board thermal resistance of PCA9554A?

Please advise. Thank you very much.

Best Regards,

Ray Vincent

  • 0
    TI__Mastermind 31623 points

    Hi Ray,

    The junction to board thermal resistance is not spec'ed in the datasheet for the PCA9544A and would take extensive resources and time to conduct testing for an estimate value. 

    We recommend to upgrade to our p2p compatible device the TCA9554A which is characterized for 400kHz, involves newer process technology, and wider supply voltage range. The RJthetaB is listed on the TCA9544A datasheet.

    Regards,

    Tyler