Category: Hardware
Product Number: LT8613
Hi,
I am trying to design a current-mode LED driver that runs with Vin from 3.5-4V, and drives a LED with Vout 2.8-3.4V with a max current of 6A. The LT8613 came up in a search but it's not exactly clear if it will operate in this mode. I was thinking of programming the voltage feedback resistors to give 4V, and use the current sense resistor to control the output current to the LED, and using the ICTRL pin to adjust the operating current.
A related question is what will happen if the Vin drops below the Vout, in other words if the battery gets low enough that it can't supply the current being requested.
Thanks,
Lloyd