BQ76940: Chart of error across input range

Slawomir Blicharz

Prodigy 20 points

Part Number: BQ76940

Hi,

In the datasheet of BQ76940 on page 20 is Figure 6-2

Does Y axis of this chart has right units? There is mV units on Y axis. Shouldn't be V units on Y axis?

Regards,

Slawek

over 5 years ago

0 David Hien over 5 years ago

TI__Genius 10830 points

hi Slawek,
Thank you for your feedback.
Yes, it appears that the label should be V.
We will need to correct it.

Regards,
David

0 Slawomir Blicharz over 5 years ago in reply to David Hien

Prodigy 20 points

Hi David,

Here is the chart representing end of discharge of our battery pack 14S16P, based on BQ76940.
In some period of time cells voltage is almost stable (do not changing lineary).
The VCx error is not linear. Is it posibble that not linear VCx error is causing such behavior of cells voltages measurements?

Regards,

Slawek

0 WM5295 over 5 years ago in reply to Slawomir Blicharz

TI__Guru 54715 points

Hi Slawek,
Yes, the flat areas on the voltage curves are represented by the disruption in the error curve in the data sheet.

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BQ76940: Chart of error across input range