BQ2409x protection issue

Johanne Chen

Other Parts Discussed in Thread: BQ24092

I have some concern in the design of BQ24092.

The situation is if any unknown damage caused on the charger IC, is there any protection scheme on that to protect the battery under dangerous charging state?

BRs

Johanne

over 12 years ago

0 Tahar Allag over 12 years ago

TI__Mastermind 29520 points

Hi Johanne,

I am not sure I understand your question correctly. But the bq24092 has many protection features listed on the 1^st page in the datasheet shut thermal shutdown, over voltage protection and short circuit protection.

Thanks!

Tahar

0 Johanne Chen over 12 years ago in reply to Tahar Allag

Prodigy 110 points

Hi Tahar:

We have already a product shipping out for retail market.

However customer would be concern if any problem would be caused of BQ2409x defecting (like ESD or somehow) .

Can a defect IC would be caused a dangerous charge state?

thanks

Johanne

0 Tahar Allag over 12 years ago in reply to Johanne Chen

TI__Mastermind 29520 points

Does your battery have protections as well?

0 Charles Mauney over 12 years ago in reply to Tahar Allag

TI__Mastermind 31120 points

There should be no issue if you application is similar to the ones in the data sheet. TI (benchmarq) is the leader in charger technology and have used the same "algorithms" in 100's of millions of ICs. The capacitance added to the external pins is enough to safegard against any ESD strikes.

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BQ2409x protection issue