BQ79616-Q1: Resolution for cell HW protector DACs apparently wrong in datasheet.

Julian Quindt

Prodigy 215 points

Part Number: BQ79616-Q1
Other Parts Discussed in Thread: BQ79616

Hi,

please confirm that the datasheet SLUSE81C is wrong in stating that:

V_LSB_DIAG = 152.59 uV/LSB shall be used for "all the HW protector DAC"

on page 15.

I only get correct readings when I use the VCELL resolution (190.73) for the voltage protector DACs (OV_DAC, UV_DAC and VCBDONE_DAC).

For the temperature ones, it does not matter since LSB for DIAG and GPIO are the same.

Best regards

Julian

over 1 year ago

0 Quentin Silic over 1 year ago

TI__Expert 7000 points

Hello Julian,

Looking at the BQ79616 Datasheet it says that for the OV_DAC, UV_DAC, and VCBDONE_DAC to use 190.73 uV/LSB.

I believe the 152.59 uV/LSB is for the OT/UT DAC.

Best,

Quentin

0 Julian Quindt over 1 year ago in reply to Quentin Silic

Prodigy 215 points

What version do you have? Mine is missing that information. It might have been corrected in the meantime?

+1 Julian Quindt over 1 year ago in reply to Julian Quindt

Prodigy 215 points

Ok, just saw that it is not under NDA anymore and that there is a new version of the datasheet on the product page. That explains it. I was looking for updated datesheets in the granted documentation under NDA.

0 Quentin Silic over 1 year ago in reply to Julian Quindt

TI__Expert 7000 points

Hello Julian,

Glad your issue is resolved. If you can, please click the "Resolved" button so we can close this thread correctly.

Thanks,

Quentin

Power management

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BQ79616-Q1: Resolution for cell HW protector DACs apparently wrong in datasheet.