I'm using a U18 latching Hall sensor (datasheet) to toggle a LED. I'm driving it off a 6V L1016 battery.
My issue is that the LED is very dim.
My understanding is that the U18 limits the output current to 20~ish mA. In theory my LED wants 20mA forward current.
So I am not sure why it is not very bright. Testing the LED directly with the same battery both 150 & 300 ohms resistance it's much brighter.
Original and tidied-up schematic.
How can I make this brighter? Would the best solution would be an op-amp? Is there something else I've overlooked (in terms of setting it up incorrectly)?