Question regarding the tolerance of the power fail comparator

[Remo]

Hi

According to the product specification, the power fail comparator nRF52832 has a threshold tolerance of at most +/-5%. When I configure the power level warning to 1.7V, this would lead to a range of 1.615 - 1.785V. Is that correct?

The maximum brownout reset voltage is specified as 1.7V which is above the 1.615V of the POF. In this case, can be ensured that the POF always triggers the warning before the brownout resets the nRF?

Many thanks in advance.

Best regards, Remo

[Jared]

Hi,

The answer from our HW engineers is that the POF will trigger before the brownout-reset.

best regards

Jared 

[Remo]

Hi Jared. Thank you very much for the clarification!