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1W 445nm driving current?

Limecat

Limecat

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I was wondering if these diodes could handle 1.5A?

I've seen the charts of various diodes, and most of them are driven in and around 1A, but not higher. Yes, shortened life and what not, but I was curious if they could handle 1.5A as I've heard of cases where they handle 2A (which I presume is not a common thing)

Heres hoping I don't fry my next diode before I can implement it in my build.
 





lazeerer

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It is you decision weather or not you want to drive it to 1.5amps. People tend to play it safe around 1 Watt until more information is available at higher current.

But with that said, there are many members here that are driving theres at 1.5amps and higher and they are still running Great. Take a look at DTR, He has been pushing these to the edge and most of his builds are at ~2 Watts and he has not killed one yet. So it is your call, alot are pushing these to 1.5amps no problem.:)

So to answer you question Yes they can handle 1.5amps But until further tests i would not call it safe.:) IMO.
 
Limecat

Limecat

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lazeerer said:
It is you decision weather or not you want to drive it to 1.5amps. People tend to play it safe around 1 Watt until more information is available at higher current.

But with that said, there are many members here that are driving theres at 1.5amps and higher and they are still running Great. Take a look at DTR, He has been pushing these to the edge and most of his builds are at ~2 Watts and he has not killed one yet. So it is your call, alot are pushing these to 1.5amps no problem.:)

So to answer you question Yes they can handle 1.5amps But until further tests i would not call it safe.:) IMO.
Click to expand...

Cool, thanks. And yeah I haven't encountered DTR's lasers here yet. Probably just not looking hard enough lol.

I'm just reconsidering since i fried my diode by accidentally driving it upwards of 1.5 or upwards of 2.0 amps (not sure which), so I thought ok if 1.5 was the straw that broke the camel's back, maybe I shouldn't drive it that high lol
 
lazeerer

lazeerer

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Limecat said:
Cool, thanks. And yeah I haven't encountered DTR's lasers here yet. Probably just not looking hard enough lol.

I'm just reconsidering since i fried my diode by accidentally driving it upwards of 1.5 or upwards of 2.0 amps (not sure which), so I thought ok if 1.5 was the straw that broke the camel's back, maybe I shouldn't drive it that high lol
Click to expand...

Well just like i said it is your call. 1 amp seems to be safe, But there have been plenty that have them at ~1.5 amps just fine. So maybe the one that you did was closer to 2 amps like you said and could be the reason why you fried it. Also use a dummy load to set the driver before you hook the Laser diode up so your not guessing the current you are trying to set it at.

I dont want to tell you to set it to 1.5 amps and you loose another diode so what i will say is stick to ~1 amp and you will have a working laser.:D
 
Limecat

Limecat

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lazeerer said:
Well just like i said it is your call. 1 amp seems to be safe, But there have been plenty that have them at ~1.5 amps just fine. So maybe the one that you did was closer to 2 amps like you said and could be the reason why you fried it. Also use a dummy load to set the driver before you hook the Laser diode up so your not guessing the current you are trying to set it at.

I dont want to tell you to set it to 1.5 amps and you loose another diode so what i will say is stick to ~1 amp and you will have a working laser.:D
Click to expand...

lol actually, it was driven upwards of 1.5 or upwards of 2.0 by accident. I connected the LD incorrectly on my breadboard in a bit of a rush. crank the potentiometer and boom, light fades.
;_;
 
lazeerer

lazeerer

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Limecat said:
lol actually, it was driven upwards of 1.5 or upwards of 2.0 by accident. I connected the LD incorrectly on my breadboard in a bit of a rush. crank the potentiometer and boom, light fades.
;_;
Click to expand...

Yes you dont want that to happen again. The key to building lasers are being patient. If you rush things your going to make mistakes and in your case you lost a good amount of money ~45 bucks for the diode for nothing.:(

So take your time on this one and dont rush, it will be more of a pay off once you have it going.:D

Good Luck:beer:
 
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