Quick question about "Mean Well HLG-600H-42"

Hello!

Can this driver run a 20x Series COB build with 0.7A 36V on each COB?
Will the driver run at 96% efficiency in this build?

Data: http://www.meanwell.com/webapp/product/search.aspx?prod=hlg-600h

Thanks in advance!

Looking at the datasheet. It's a 42 volt. You're using 36v chips. My understanding is the driver would work but it'd overdrive the 36v chips. Hotter sinks and driver temps.

The 600H-36 would match the chips.

I'd get the datasheet for the chips. See what's 100% at the voltage/amps.

SouthCross said:

Looking at the datasheet. It's a 42 volt. You're using 36v chips. My understanding is the driver would work but it'd overdrive the 36v chips. Hotter sinks and driver temps.

The 600H-36 would match the chips.

I'd get the datasheet for the chips. See what's 100% at the voltage/amps.

Click to expand...

If I pick the 36v drive would I be able to run a 20x Series COB build with 0.7A 36V on each COB?

Takeshy said:

If I pick the 36v drive would I be able to run a 20x Series COB build with 0.7A 36V on each COB?

Click to expand...

Do you have a model number for the '20x series COB' chip? Or do you mean 20 COBs ran in series?

The chip datasheet will have the graphs and list that show the voltage verses operating % and operating % verses amps. That'll show operating voltage and amps at a given driven percentage.

SouthCross said:

Do you have a model number for the '20x series COB' chip? Or do you mean 20 COBs ran in series?

The chip datasheet will have the graphs and list that show the voltage verses operating % and operating % verses amps. That'll show operating voltage and amps at a given driven percentage.

Click to expand...

Chip is Cree CXB3590 CRI80 3500k 36v CD Bin @ CXB3590-0000-000N0HCD35G
http://www.cree.com/led-components/media/documents/ds-CXB3590.pdf

Thanks in advance!

HLG600h-xx will drive one 3590 in series, and the 36v driver is the best option. You can parallel as many as you want. But only one in series.

16.7amp/20 strings of one= 835ma per chip.

Greengenes707 said:

It will drive ONE 3590 in series and the 36v is the best option. You can parallel as many as you want. But only one in series.

16.7amp/20 strings of one= 835ma per chip.

Click to expand...

Will I have problems with thermal runaway by running them in parallel?

Takeshy said:

Chip is Cree CXB3590 CRI80 3500k 36v CD Bin @ CXB3590-0000-000N0HCD35G
http://www.cree.com/led-components/media/documents/ds-CXB3590.pdf

Thanks in advance!

Click to expand...

Operating range in volts is 36-39. 42v driver. The specs show up to 150% operating range at a max 1800ma.

I'd use that driver. 2 volts over 39v(100%) would probably be running it at 120%. That's not a problem.

Takeshy said:

Will I have problems with thermal runaway by running them in parallel?

Click to expand...

95% no. Always a chance, but very rare. And with 20 chips cutting up current it's not very stressful on them. Running on the same sink will help chances. But really not an issue.
Plus the 36v driver will cap out at 36v if just running a few or somthing goes wrong...which for a 3590 will top it out at ~75w and basically run in CV instead of a limp mode or blowing other chips.

At maximum. The driver has about 4 more volts then listed. I have a 48v driver and the max it'll put out is 53.3v. The 48v chips are typical at 51.2v(100%). They're currently being driven at 51.5v.

3000k 80cri

Can you dim down the voltage on those 42V drivers? Does it even matter at all?

Depending on the model you can adjust current and voltage.