Meanwell LDD driver: for those who want to dim to 0 using Arduino

Meanwell is nice enough to list "QUIESCENT INPUT CURRENT IN SHUTDOWN MODE(max.)" as "1mA at PWM dimming OFF and 24VDC input" on the data sheet uder the dimming section, I'd like to have the max input current when on as well.
 
Oops, I over-thought it and jumped to the wrong conclusion.

I did notice something else in the data sheet that has me worried. It specs PWM input at 2.5V to 6V, my Reef Angel puts out a 10V PWM signal. I've seen a couple arduino controllers mentioned, but has anyone tried the LDD series driver on a 10V PWM signal as opposed to a 5V signal?
 
DO YOU HAVE TO GET DIFFERENT SIZED DRIVERS, FOR THE DIFFERENT LEDS AM I CORRECT ON THIS. (DEPENDING ON WHAT mA THE LED NEEDS)
 
If you do not connect anything to the driver DIM pin it will run at 100%. If you use a controller, then it does not matter. Just remember to dim LEDs below their max values.
 
pwreef said:
If you do not connect anything to the driver DIM pin it will run at 100%. If you use a controller, then it does not matter. Just remember to dim LEDs below their max values.
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When your power go out then comes back on the controller takes longer to boot than the outlet so your string needs to be protected or use the correct mA driver for you setup.
 
hazard, can't wait to see how it turns, and make sure to take lots of pics and start a build thread...............
 
Jamesjkl said:
When your power go out then comes back on the controller takes longer to boot than the outlet so your string needs to be protected or use the correct mA driver for you setup.
Click to expand...
When my arduino is off, the light goes off probably because the DIM pin is grounded. There is a momentary flash when Arduino boots, then things normalize. Besides the cheap Chinese LEDs, everything else is fine at 1A. But everyone is their own engineer for this of course. :thumbsup:
 
pwreef said:
When my arduino is off, the light goes off probably because the DIM pin is grounded. There is a momentary flash when Arduino boots, then things normalize. Besides the cheap Chinese LEDs, everything else is fine at 1A. But everyone is their own engineer for this of course. :thumbsup:
Click to expand...

That is good to know as long as the dim pin is in use with no power its off even with a power failure?
 
pwreef said:
Sorry I don't know what you mean. When there is a power failure, everything is off. :-)
Click to expand...

yes but the controller doesnt power up sa fast as the lights what happens wben you unplug the controller? does the light go out?


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When there is power to the drivers and no power to the controller lights are off. It takes about 1 second for the controller to boot. During that time there is a flash that seems like momentarily LEDs go to full current probably while the code is loading and setting registers. I honestly don't think that it will harm them on the rare occasion that power failure occurs, but like I said everyone can design their fixture with different driver values if they wanted.
 
You're right I'm sure if it boots that fast and not too over power. They are very inexpensive and easily controllable The on off and wide dimming range is super. More drivers giving more controll of more colors :eek1: and only one power supply to plug in and no parallel strings to worry about :love1:
 
There's like a 10 week wait on the wired ones. I got a bunch in today of wired/wireless and these things are tiny... like an inch big. Allows so much more room in the fixture.
 
thought i looked at the website someone had posted on here, the octo one. thought they showed a bunch on there. unless i was looking at the wrong thing
 
Dave Thebrewguy said:
For anyone who has one. Will they fit on a breadboard?
Edit. Anyone have mounting ideas for the wired ones?
Click to expand...

I have a central location shelf in the middle of my fixture where the drivers will be located. They are so small, that I will just use 3M double sided mounting tape to hold it down. The driver will be on its side with the wires pointing to the back or sides of the fixture, unless I use a proto board.
 
Looking at the spec sheet, and being a bit rusty from High School electronic tech, I see a pin for PWM dimming input, but my ELN has a PWM+ and PWM- hooked into my controller. With the LDD in use, not aure what to do with my other PWM lead from the controller.
 
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