But not just a couple with a reasonable price.
Problem that nobody have such problems. Host will overheat, leds will overheat, fet wont overheat.
1. For some reason, MOSLED MCPCBS are available.
2. Texas Ace mentions the limit is here as well.
I bet that this is useless thing. Such boards cant carry more than 15W. This is good value for buck driver, but with low-res fet there will be much more. Leds will overheat before you will pass fet heatspread limit.
I tested these drivers and the FET was desoldering itself with as little as 2.5W of heat dissipation. It simply had no way of getting rid of the heat effectively.
An aluminum pcb would be great but they don’t make them in 2 sided PCB’s and the cost is way too high.
This driver offers a lot of benefits if it could handle the heat. I have some ideas on how to improve it but that is a job for another day when the next generation of drivers are figured out.
As it is, this is good for high Vf LED’s but not for low Vf modern LED’s.
if you want higher output for triple or low Vf voltage LED its best to thermal epoxy the FET to the shelf
or get a MOSLED star that has a FET pad
What is a mosled star? Nothing comes up when I google?
If you pot the driver then it should be able to handle the output fine but not many want to do this.
so his driver runs Bistro/Narsil with 1 channel output configuration?
Ah, interesting to see that someone did it. I was thinking that this would be the best option in the OP IIRC.
Yes, with that type of PCB you should have no issues with heat and be able to run whatever LED you want.
Deleted: wrong place to post this. Sorry
Dont forget that is was developed for linear driver. With direct drive leds will overheat before mosfet.
Correct, the Texas Commander is a linear driver. :+1:
The Texas Avenger is a direct drive PWM driver.