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BQ25895: bq25895

Reza Rafi
Prodigy 130 points
Part Number: BQ25895

Hi,

Currently I am using USB mux  (FSUSB104UMX) in front of bq25895 charger, and I am feeding DSEL out of bq25895 with 10K pull-up back to mux (FSUB104UMX), now what is happening is : when I plug USB from wall DSEL line goes from High to Low and stays low which is fine, and when I plug USB from computer it suppose to go low for few milli-sec and back to High, but this is not happening, I see continue oscillation at around 2 seconds,(2 seconds up and 2 seconds down and ..........).  Any idea why this is happening?

  • 0
    Prodigy 130 points
    I figured this out already, just realized the lack of current supply in Computer USB, my processor initially needs over 1 amp, and since Computer usb can not supply no more than 500mA, my processor was resetting every 2 seconds.