I have the Above LED driver driving a 10 Watt Green LED . It is getting extremely hot. I have looked for shorts in the tracks and there is nothing. I have several of these in parallel from a 12 Volt supply and only this one is getting HOT looking for some advice.

http://www.mantech.co.za/Stock.aspx?Query=Ldd-600Hand datasheet found here

 

Have you broken the +load wire and inserted an ammeter?

 

Hello,

What are the specifications of the used led?
When I calculate the 10 Watts / 600 mA , I get 16.6 Volts.
The driver is a step-down converter, so the input voltage should be higher than the mentioned 12 Volts.

Bertus

 

The Supply data sheet says VF 7,2 volts If 1050mA

 

I will test the current tomorrow

 

Hello,

When the led has a Vf of 7.2 Volts at 1050 mA , I get about 7.5 Watts.
At 600 mA you will have a lower Vf and much less power.
I think you will have 3.5 - 4 Watts.

Bertus

 

Hello,

When the led has a Vf of 7.2 Volts at 1050 mA , I get about 7.5 Watts.
At 600 mA you will have a lower Vf and much less power.
I think you will have 3.5 - 4 Watts.

Bertus

Yes in general the 10W comes from max Vf and max current and they are constantly rounding up and even down with those specs..
Most of the 10W are 9-12Vf @900mA
The 6-7.2V @1050mA tend to be IR LEDs.