BQ76920 Alert pin

Nail Sadrov

Other Parts Discussed in Thread: BQ76920

Hi,

I have a question about BQ76920.
Is it possible to change the configuration register CC_CFG, so that when events CC_Ready , Alert pin did not change its status?

Regards,
Nail

over 9 years ago

0 Vish Nadarajah over 9 years ago

TI__Expert 6085 points

Nail,

there is no scheme or provision to mask the ALERT pin. The signal is the output of OR of all bits in the SYS_STAT register.

If you asking this question, to avoid false trips, for better noise immunity add R|| C to GND. A value of R=470K and C= 500pF would give a time constant of

250us.

0 Nail Sadrov over 9 years ago in reply to Vish Nadarajah

Prodigy 20 points

Hi Vish,

Thanks for your reply.

I wil try to do as you suggest.

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BQ76920 Alert pin