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Old 12-11-2012, 07:05 PM #1
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Default The "SXB" Laser Driver 2.1A (Boost)

Hey Laser Heads.


"The"
SXB


Here is a New Driver that I created. I call it the "SXB". (aka Super X-Boost V8)

Basically its a Beefier Boost drive to the X-Boost. I designed it for the 9mm 445nm diodes and is tested up to 2.1A now down to 3.6v at more then 5v load with no problem at all and should have no problem doing 2.2A down to 3.6v/3.7v. Just got to get the correct resistors in to test this currant.

I still have a few things to do to it "touch ups" but its pretty much done.

Right now i have it on a 20mm size board. I plain on adding a few more things to this driver like Op amp etc so i think iam going to keep it around this size. Its single sided so you can heatsink it flat down to a heatsink or a Pill. I will also make a version done the line with contact pads so you can pop it into a pill since surprisingly this driver does not get as hot.

Iam very Happy how this driver came out.


Basic Specs:


Name: SXB "Super X-Boost"
Kind: Boost Only
Voltage In: 2.2V-6.5V
Setting: Fixed Set Resisotors
Max Currant: 2.1A Tested (But should have no problem at 2.2A)
Extra's: Soft Start

Here are some Pictures and Videos i took............


Pictures:





















Here is a Short video of it at 2A with a 5v+ load:


and the start up. First slope with the Soft start ~60%. Then after that it slowly sweaps up:









For Looking.!!!





As a Side Note slightly off topic:

Quiet a few of you have come to me asking for a Higher Currant Buck driver. In the 5A+ to 10A+ range. Some know the trouble i was having getting the chips for my supplier that where the more powerful chips of the X-Drive Buck line.

So what i decided on is since it doesn't looking like iam making any headway with them budging on those chips what iam going to do is make you guys a new buck driver in that High Currant range now that i finished this boost drive above. "Well iam going to try to make it work cant promise anything" I will keep you guys posted on this and hopefully everything works out. Probably looking to be ~10-12A MAX. I have not forgotten about you guys.


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Old 12-11-2012, 07:13 PM #2
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Default Re: The "SXB" Laser Driver 2.1A (Boost)

Wow! Looking good! Your drivers are by far my favorite, +1 to you

What's the efficiency of this one? I imagine it must be pretty high since it's doesn't get as hot.

Last edited by ARG; 12-11-2012 at 07:15 PM. Reason: I used the wrong your you're your
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Old 12-11-2012, 07:33 PM #3
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Default Re: The "SXB" Laser Driver 2.1A (Boost)

Quote:
Originally Posted by ARGLaser View Post
Wow! Looking good! Your drivers are by far my favorite, +1 to you

What's the efficiency of this one? I imagine it must be pretty high since it's doesn't get as hot.
Thank You.

Well at 2A it looks to be ~84%. Hope to get it in the 90's after the touch up.
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Old 12-11-2012, 07:36 PM #4
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Default Re: The "SXB" Laser Driver 2.1A (Boost)

How much will these be sold at?

Thanks

Richard
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Old 12-11-2012, 07:40 PM #5
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Default Re: The "SXB" Laser Driver 2.1A (Boost)

+Rep for another great driver!!
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Old 12-11-2012, 08:03 PM #6
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Default Re: The "SXB" Laser Driver 2.1A (Boost)

Quote:
Originally Posted by richard86 View Post
How much will these be sold at?

Thanks

Richard
I have not gotten that far yet.

For sure it will be no more then $19. It all depends on how many Chips i order when that time comes. Probebly try to have them at the same price range as the X-Boosts ($15-$19).


Quote:
Originally Posted by awillis2589 View Post
+Rep for another great driver!!
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Last edited by lazeerer; 12-11-2012 at 08:43 PM.
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Old 12-11-2012, 08:17 PM #7
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Default Re: The "SXB" Laser Driver 2.1A (Boost)

You did it again Ange

Soft start yummy!
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Old 12-11-2012, 08:21 PM #8
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Default Re: The "SXB" Laser Driver 2.1A (Boost)

You laser warrior you. Very nice and glad to see you back good sir.
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Old 12-11-2012, 08:24 PM #9
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Default Re: The "SXB" Laser Driver 2.1A (Boost)

Wow another great driver! Good luck with the sales... and +1
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Old 12-11-2012, 08:49 PM #10
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Default Re: The "SXB" Laser Driver 2.1A (Boost)

Good stuff Angelos!

You have been busy!

May I ask if a heatsink is required for this bad boy? (most likely huh?)

I saw a heatsink in your video.

Can you show a picture of what chip to mount the heatsink to.

Great work man!
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Old 12-11-2012, 09:47 PM #11
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Default Re: The "SXB" Laser Driver 2.1A (Boost)

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Guys.


Quote:
Originally Posted by jayrob View Post
Good stuff Angelos!

You have been busy!

May I ask if a heatsink is required for this bad boy? (most likely huh?)

I saw a heatsink in your video.

Can you show a picture of what chip to mount the heatsink to.

Great work man!

Sure have been. Hell, I have not made a post in over a month.

TO be Honest with you Jay a Small heatsink will do the Trick. Well at least for 2A. Or even popping it into a Pill will be enough. The driver really does not get that hot.

Since this Chip has a Thermal pad The best way to heatsink the drive is from the bottom side where you see the Exposed copper pad. That is going straight to the thermal pad on the Chip.

The Black chip in the center is what you want to heatsink. So if say you cannot heatsink it from the bottom then you would place a heatsink on top of the big black Chip in the center of the board.

This is why i went in for a Chip in a larger size. They handle the heat better.
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445nm 3.6W Monster Freak TEC 9mm, 3.1W Fat Boy Build , 2.9W Big Stainless , 2.7W Big Black, 2W Arctic G2 , 1.8W C13
473nm 178mW CNI-PGL-III-C , 56mW CNI-PGL-III-C
488nm 52mW OPSL SAPPHIRE 488-50, 59mW SS Melles Griot BCD-50&BCD-25 35mW
515nm 83mW Direct Green Diode Fully Custom Host
532nm 617mW RPL Style , 213mW CNI-PGL-III-A , 120mW DIY SS C3
589nm 130mW CNI-PGL-III-A
594nm 13mW CNI-PGL-III-C
632nm 4mW HeNe
635nm 1130mW Fenix TK35 ML501P73 , 918mW Small Sun ZY ML520G71
650nm 1056mW Polished CNI-PGL-C Mod, 5W Custom Build Red Devil
658nm 430mW LOC 826 Brinyte A20 , LCC 390mW C3 3 mode
660nm 500mW SS LQ ignis
671nm 800mW PowerModulem, 9mW Black Pen
685nm 44mW MXDL 2x AAA Pen, 41mW, 130mW Stainless Shadow
780nm 127mW Pen
808nm 758mW Fire Dragon From DJNY
LPM's 2W/5W Ophir
SPECTROMETER - 390nm to 980nm



All My Reviews, Tips & Mods Are Here Now: >Reviews<


Check Out My YouTube Video's Here:
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Last edited by lazeerer; 12-11-2012 at 09:47 PM.
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Old 12-11-2012, 10:07 PM #12
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Default Re: The "SXB" Laser Driver 2.1A (Boost)

Good information...

Good testing vid...

Great work!

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Old 12-12-2012, 03:56 PM #13
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Default Re: The "SXB" Laser Driver 2.1A (Boost)

Quote:
Originally Posted by lazeerer View Post
Hey Laser Heads.
Look Who's saying You're the biggest of all the heads theres ever been man! I'm in for this one! Good Luck with the sales..

I sent you a pm a while ago, I want/need some of your drives so bad..
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Old 12-12-2012, 05:57 PM #14
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Default Re: The "SXB" Laser Driver 2.1A (Boost)

Just a word of advice for another driver builder like me - I have found that while, yes, the bigger chips have a higher specific heat, the DFN and QFN chips typically have a higher thermal conductivity to ambient or to the case. That's why I have been switching over to the DFNs and QFNs for my BlitzBucks and other drivers that are upcoming - they are easier to heatsink!
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Old 12-12-2012, 06:40 PM #15
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Default Re: The "SXB" Laser Driver 2.1A (Boost)

Quote:
Originally Posted by sinner View Post
Look Who's saying You're the biggest of all the heads theres ever been man! I'm in for this one! Good Luck with the sales..

I sent you a pm a while ago, I want/need some of your drives so bad..
I thought i answered you on that. Ill have to look it up again. I just got back so i must of missed it through all the Pms. Iam still looking through all them.

Quote:
Originally Posted by Wolfman29 View Post
Just a word of advice for another driver builder like me - I have found that while, yes, the bigger chips have a higher specific heat, the DFN and QFN chips typically have a higher thermal conductivity to ambient or to the case. That's why I have been switching over to the DFNs and QFNs for my BlitzBucks and other drivers that are upcoming - they are easier to heatsink!
Thats not quit true Unless you are just referring to larger chips that dont have a thermal pads that gets soldered to the boards.

Most of the larger chips that have a high switch currant usually have a thermal pad that gets soldered to the board just like QFN and other chips of that nature etc...

Therefore the larger chip is Superior. For Example this chip has a Larger Thermal pad in the center of the chip that gets soldered to the Bord then a QFN chip has. Being that its a larger chip as well only makes it handle heat even better.

If both chips have thermal pads that get soldered to the board then the larger chip will be better and is why i went with this package choose rather then the other one that was available.
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Old 12-12-2012, 06:42 PM #16
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Default Re: The "SXB" Laser Driver 2.1A (Boost)

I... don't agree. On every single datasheet I have ever seen for an IC with both an SO package and a FN package, datasheet clearly states that the FN package has higher thermal conductivity, even when they both have thermal pads. It's because the larger ones have more PLASTIC to go through to get to ambient. But it's your call.
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