Floating pin6 Vbat for BQ24316

Kocela Chang

Intellectual 280 points

hello

if float pin6 VBat , what a problem cause?

any potential bad things get happen?

thanks

over 13 years ago

0 Tahar Allag over 13 years ago

TI__Mastermind 32030 points

Hi Kocela,

First you will lose the over voltage protection of your battery. If the Bat-OVP function is not required, the VBAT pin should be connected to VSS.

Thanks

Tahar

0 Kocela Chang over 13 years ago in reply to Tahar Allag

Intellectual 280 points

Tahar

because some reason the client want to know what potential problem cause with floating Vbat pin.

thanks

0 Tahar Allag over 13 years ago in reply to Kocela Chang

TI__Mastermind 32030 points

Hi Kocela,

The datasheet recommends connecting the Vbat to Vss as follows:

If the Bat-OVP function is not required, the VBAT pin should be connected to VSS. (From datasheet page 13).

Leaving VBAT floating will not predict the behavior of that pin and can cause the over voltage protection to start any time and you will not have any control over it.

We do not recommend our customers to go above the recommendations of the datasheet and TI is not responsible for any application that does not follow the datasheet requirements.

Thanks!

Tahar

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Floating pin6 Vbat for BQ24316