Good day. Please help to check the customer's circuitry for Battery plus external supply.
I have copied and paste the details below for clearer information.
I was supplied with an electronic prototype device from a supplier which uses two LM66100 in order to run of two packs of 2 AA batteries and can alternatively be powered through a usb connection. The devices seem to show intermitted malfunctioning, looking similar to a brownout and we experienced one battery leaking while in use. We are unable to locate the root cause in the software, hence I would like to check whether the power-supply circuitry was designed acceptable design around the LM66100. I am attaching the schematics of the power-sharing. It looks similar to the application in the data sheet but has a distinctive difference where the usb power cuts off the power supply by the batteries. Could you please doublecheck if that is feasible and give us a feedback?
Thank you in advance for the support.