Hi, looking at MPQ3426 datasheet it indicates "Once EN reaches 1.5v(turn on threshold), the current sink turns off to create the reverse hysteresis for Vin falling.
I am not concerned with UVLO functionality, simply want to operate EN pin as it should be, enable or disable boost. Thus, I connected EN to a 2.5v source which enables the MPQ3426. For reference, I am boosting 12v to 19.1v. Am I correct operating the chip in this fashion?
The hybrid functionality of the EN pin to me is ambiguous.
The 2.5v source is a 5v GPIO from mcu, which forms 10k divider. rbottom is 10k, “rtop” is 10k, and “VIN” is 5v.