I would like to design with this product for use as a cable voltage drop compensator, but the input range is too low for the required drop.
Is there any way to extend the input voltage range from 2-50V to somewhere in the range of 40-95V ?
I am trying to deliver/maintain a constant 40V at the load input over a 2500ft cable with a dynamic load between 6-30W. the load will be around 6W on a fresh install and creep up to about 30W before we get an alarm and the load filters are swapped.
This chip works as a proof of concept when I use a 40V supply and pulse a 0.1A load, I get the exact response I was expecting (a voltage response of 46Vout at the supply). But I need to be able to have the supply output increase all the way up to around 90V, and the chip maxes out at 50.
I tried to bias the ground level of the chip up to raise dynamically with the voltage compensation, but this doesnt work, as there is some unknown ground pathing through the IC and the IMON current spikes considerably.
Any suggestions?