If EN pin controlling the VDRV Pin which implies as long as EN pin is high, VDRV will be high which will drive the back-to-back MOSFET Connection.
If my understanding is correct the bootstrap capacitors CDIV1 and CDIV2 are boosting the voltage. How long the capacitor can maintain the boosted voltage.
I have a use case where the MOSFET will have to be turned ON continuously for 6 - 7 days. Will the device TPSI3050 work for my use case.