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BQ20z65-r1 : assert on alert pin

Other Parts Discussed in Thread: BQ20Z65-R1

Hello,

 

I'm interested in testing the ALERT pin in bq20z65-R1 chip.

 

How do I make it enabled ? If I try to down Overcurrent discharge thresholds (subclass 1 registers) so as my current actually delivered becomes over the programmed threshold, the SafetyStatus gets the expected state, but nothing changes on ALERT pin. If I program a 2 seconds watchdog on SMBus (subclass 4), and I go on timeout on that watchdog, same result : nothing changes on ALERT pin ?

 There is a 5k1 pull-up to 2V5 on the alert pin.

Is there another setting to perform, or other condition to have ?

 

Thank you in advance.

Hello,

 

I'm interested in testing the ALERT pin in bq20z65-R1 chip.

 

How do I make it enabled ? If I try to down Overcurrent discharge thresholds (subclass 1 registers) so as my current actually delivered becomes over the programmed threshold, the SafetyStatus gets the expected state, but nothing changes on ALERT pin. If I program a 2 seconds watchdog on SMBus (subclass 4), and I go on timeout on that watchdog, same result : nothing changes on ALERT pin ?

 

Is there another setting to perform, or other condition to have ?

 

Thank you by advance.