I was recommended to make a new post regarding this, so here it is.
In the schematic posted here: https://e2e.ti.com/support/power-management/f/power-management-forum/982290/bq24600-battery-charging-and-power-gate-using-lp73100rpw-in-a-dual-battery-design-schematic-review-request
I have two LM73100RPW (mistakenly labeled as LP73100RPW, sorry about that) on page 2 of the attached schematic, working as a battery switch controller to allow user to select A, B, or A+B as power source. There's some voltage measurement of battery A/B which will select higher-charged battery and prevent switching to discharged battery, but that part should work correctly, I think.
There's also an AC adapter which should power the main system rail when plugged in (while charging batteries as well, but that's unrelated to this question).
So the question here is, what will LP73100 do when DC_IN rail (around 15V nominal) goes to BATT rail via D8 (the batteries are 2S1P li-ion). Will both LP73100s stop conducting (despite being potentially turned on by BAT_A/B_OFF_CTL) and do the right thing?
The datasheet mentions this:
> The device has integrated reverse current blocking FET (BFET) which operates like an ideal diode. The BFET is
linearly regulated to maintain a small constant forward drop (VFWD) in forward conduction mode and turned off
completely to block reverse current from OUT to IN if output voltage exceeds the input voltage.
So this mean my schematic should work?
