LNK606 is not workin for 6 W
I am trying to make a LED driver of 6W as you have given in DER 215 using IC LNK606PG, but i only got 5W.
Input Voltage=100V DC
Output Voltage=19.20V DC
After half an hour output Voltage: 18.96V DC
I am attaching circut diagram file and layout file . Please chec it and help me.
I have alredy sent a file for this matter.
I am using load as 6 LEDs of 1W.
Input AC voltage range is 100V to 270V rms.
When i have changed the feed back resistance from 3.9 K to 3K ,there is output voltage is 18.6V DC