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BQ25895 OTG 3A output

Other Parts Discussed in Thread: BQ25895

RIght now I am using BQ25895 for power bank application.

I would like to use the 5V/3A output in OTG mode using the PMID pin.

My board schematics is similar to the EVM  except smaller. 

Initially I can output 5V/3A for about 10 minutes. Then the chip shutdown because of overheat I think.

After that, I won't be able to get 5V/3A anymore but only 5V/1.1A.

Did any one have the same problem? Could any of the internal parts been damaged?

I only have two boards to test and both of them have the same behaviors.

I plan to build some more boards to see whether this situation is consistent.