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behavior of CHG pin in BQ25101HYFPR during Pre-Charge state

Yuriy Kharin
Intellectual 1065 points

Hello Champs can you please elaborate on expected behavior of CHG pin in BQ25101HYFPR during Pre-Charge state?

Thank you in advance!

  • 0
    TI__Genius 14890 points

    Yuriy,

    CHG will pull low during pre-charge.  Note that since input current is limited during pre-charge, if the CHG pin is tied to an LED through the OUT pin, the current will be limited and the LED may not turn on.  If it is a different pull-up, it will act as expected with an LED.

    Regards,

    Dick