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BQ25170: BQ25170 STAT pin when indicate charging or charge complete status

Part Number: BQ25170
Other Parts Discussed in Thread: BQ25171-Q1

Hi Team,

My customer has a problem when use BQ25170 STAT pin to show charging status.

The STAT pin will blink under fault condition, which means MCU can't just trigger a high level voltage on STAT pin to know fully charged. It may be a fault signal. They can't connect a LED on that pin to show the status either because system structure requirement.

From my understanding, if customer want to distinguish Full charge and Fault status, MCU need to monitor STAT pin for >2 seconds to see if it's constant high voltage. That's a waste for MCU resource.

Competitor's device has two pin to show charging and full charge separately. So it's easy for charger to trigger MCU. Could you do it the same way?

Thank you!