BQ40Z50-R1: FC flag

MJT

Prodigy 230 points

Part Number: BQ40Z50-R1

Hi,

We tested 2 batteries with the same GG file, but one's FC flag is set during charging, one's FC flag is not set.

The cut-off current of the charger is 100mA.

We are tying to modify [FC] Setvoltage threshold to 4150mV but don't know if this is the cause.

I am attaching the GG file we use now and the screenshots of the battery which FC flag is not set.

Thank you for your assistance.

Joyce

BQ40Z50 FC flag.zip

over 7 years ago

0 Batt over 7 years ago

TI__Mastermind 42535 points

Hi Joyce,

From the gg file, your charge taper window will open at 4V but your current needs to be less than 250mA at taper and the passed chg in the consecutive taper windows needs to exceed minimum taper charge. since you have set fc for primary charge termination, once this is satisfied you will get fc set.

0 MJT over 7 years ago in reply to Batt

Prodigy 230 points

Hi, Batt,

So we could change [FC] setvoltage threshold to 4150mV.

Is my understanding correct?

Thank you.

0 Batt over 7 years ago in reply to MJT

TI__Mastermind 42535 points

Yes.

Power management

Power management forum

BQ40Z50-R1: FC flag