Hey, thanks for your comment. I looked at using a resistor in series with the LED, but if my calculations were correct I could only power the LED less than 3W and 2W would be wasted.

R = (V_s-V_f)/I_f = (5V-2.8V)/1A = 2.2Ω

P_LED = V_f*I_f = 2.8V*1A = 2.8W

P_Resistor = V_s*I_f-P_LED = 5V*1A-2.8W = 2.2W

Let me know if the calculations are correct.

Edit: Calculations

Hey, thanks for your comment. I’ll look into the MAX16834 as soon as I have time tomorrow. Also, how would I be able to use a constant current driver with shunt dimming? How would I go about calculating the time a constant current source takes to recover from a short?