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BQ25180: A way to read button/thermistor pin state in real time?

Igor Orlovich
Prodigy 180 points
Part Number: BQ25180

Is there a way for the chip to report button state synchronously beyond the wake timers?

For some of our logic we need to know both level and transitions. Can for example thermistor value threshold be also used to tell if button is currently held?

  • +1
    TI__Mastermind 23410 points

    Hi Igor,

    While there is no dedicated register to determine if the button is pressed or not, you can read the TS status (which will tell you what temperature range the battery is in based on the NTC voltage) and determine that the TS pin is seeing a certain voltage with 0 V being fully pressed. You can use these temperature ranges to back calculate and determine button presses this way.

    Best Regards,

    Anthony Pham