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LTC4412 with CTL controlled by supply voltage

Hello,

I have a question regarding the LTC4412.

I was wondering if it is possible to wire the IC as per figure 4 from the datasheet, but control the CTL pin simply via one of the supply voltages so that the MCU is not needed.

www.analog.com/.../4412fb.pdf

My circuit will mainly be powered by a 2-3 cell lipo but I would like to switch over to USB (disconnect the battery) when the cable is plugged in.