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BQ4050: (2)fets closed on dschrge in looks like all normal conditions (data memory configuration mistake?)

Alexander Strokanov
Intellectual 450 points
Part Number: BQ4050


Hello! Need help again! (no answer in the thread before))

As the prblem from my past thread was solved, a new one comes( I configured all Datas memory one by one in accordance with the instructions in SLUUAQ3.

But then I apply load to pack (1500 mA approx. or lower, no metter) then current flows about 1 seconds, then device close FETS for 1 second, and goes in cycle.  Same situation with charge mode.

Tryed to find the mistake throug all day, but no sucscess (( Registers and data memory attachd. Thank you)

https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/196/6433.rezerv_5F00_test_5F00_data_5F00_memory.gg.csv.7z

  • 0
    TI__Guru* 76230 points
    Hi Alex,
    Can you include a log file, logged at 1s intervals so we can see what is going on with the gauge. Also, the image of the screen capture should include all the registers especially the safety status and pf registers. It looks like you might be hitting a safety condition hence the fet turning off. Double check all your safety settings and ensure none is being violated

    thanks
    Onyx