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TPS65982: Driver ability of GPIOs

Takashi Onawa
Genius 13200 points
Part Number: TPS65982


Hi team,

Could you tell me Max driver current of each GPIOx?

Datasheet doesn't seem to contain that information.

Regards,

Takashi Onawa

  • 0
    TI__Mastermind 36756 points
    Hi Takashi,

    We do not recommend drawing current from the GPIO pins as this could easily damage the chip.

    Thank you,
    Eric
  • 0 in reply to Eric Beljaars
    TI__Genius 13200 points
    Hi Eric-san,

    Thanks for your prompt response on this.

    They do not want to dynamically draw current from the GPIO. They just want to sense GPIO output level and use its transaction as a trigger event in their EP.

    Fundamentally, the spec is defines as I_OH and I_OL in almost device in its datasheet but I did't find it in datasheet of TPS65982.

    These spec should be opened for general system design though, could you disclose it for the customer?

    Regards,
    Takashi Onawa
  • 0 in reply to Takashi Onawa
    TI__Mastermind 36756 points
    Hi Takashi-san,

    The GPIO pins can easily be used to trigger events inside an EP. The input pins of an EP will not draw much current from the GPIO pins and will not cause issues on the TPS65982. However, it is not recommended to run LEDs off of the GPIO pins as this could draw too much current from the GPIOs and potentially harm the device.

    Thank you,
    Eric