1W LEDs

#22

Sounds like a plan

#23

Ok, I’ve bought a couple of the xl6009 boards.

Now what do I do :wink:

#24

Current sense resistor been pin 5 and ground.

Will draw a picture and post it when I am not driving

#25

Hi Joe, I have the board and a little time - any chance of a quick sketch?

#26

15047465969281033573369.jpg2988×5312 2.2 MB

From memory will have a look at the datasheet tomorrow

#27

You will probably need a RC content on the there as well set the TC at about the switching frequency.

Set the value of the of R such that at the required current it has 1.25 V on it I would also removed the output caps

#28

1504788770571-261208984.jpg2988×5312 2.71 MB