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BQ24075 SYSOFF

Adrian Soltero
Intellectual 1135 points
Other Parts Discussed in Thread: BQ24075

Hi Team,

The BQ24075 datasheet states to not leave SYSOFF unconnected:

What are the implications if left unconnected? 

Specifically, if a MCU GPIO is connected to the SYSOFF, and the MCU is completely shutdown (for a low power mode), does that constitute as "unconnected."  Or does the parasitic capacitance suffice to keep the pin immune from noise?  Do you recommend a small cap in this situation?

 

Thanks,

Adrian