I am looking for resistor values, which is required for below two combinations
VoltageTI R&D.pdf Variation: 21V DC to 25.2 V DC
Voltage Variation:18V DC to 25.2 V DC
With Existing Schematic, I am getting this variation range.
16V DC to 26 V DC
Also, I want to control the brightness of the LED
Please suggest me the changes