I have a flashlight w/ a driver board that has a driver IC marked “LEDA”. As far as I can tell, it’s a QX9920? However, it looks like Pin 6 (CS) is connected to VSS through R5 (marked 102(1K Ohm)) and in series with another resistor marked R6 (R510).
According to the datasheet, I expected Rcs to be around 0.1ohm to 0.25ohm depending on desired current output. Am I looking at the wrong resistor? Is it really 1000ohm on this board? I measured 60mV on Pin 6 so i should be getting around 0.6A output?