AMC7135 question

[3zuli]

you all know these drivers... now question on this:
DealExtreme: $16.58 AMC7135 1050mA Regulated Circuit Board for DIY Flashlights 10-Pack
these drivers for leds are made of the AMC IC's. there are several types of boards for different currents (350, 700, 1050, 1400mA). I guess, the 350mA version has one IC, 700mA has two IC's in paralell etc.
so I can buy the 10-pack of 1050mA version and I'll get 30 IC's... is that right?
thx for help

 

[HIMNL9]

Basically, yes ..... but then you have also to unsolder them, if you need only the ICs .....

 

[3zuli]

that should be no problem for me

 

[billg519]

These little drivers are useful as is for positive ground IR builds that need a negative side driver. The chips can also be removed and used separately. Very small and fairly useful. I have made several IR`s and reds that use these.

 

[3zuli]

bumping this old thread with a new question:
I'm building a LPC-815 laser and I want to use single AMC7135 chip to drive it. now, can I wire it like this:

or should I do it like this and electrically isolate the module from housing?

 

[3zuli]

bump?

 

[jib77]

You have to use the second one and isolate, OUT is the pin where the transistor is regulating current.

 

[rhd]

I know these aren't boost drivers, but are they linear or buck?

I'm presuming linear since there's no coil?

 

[jib77]

Its an extremely simple linear negative side current sink ... it basically has an internal reference that turns on and off a FET to keep the current at 350mAs.

 

[3zuli]

amc7135 are ultra-low dropout (>=120mV) linear regulators, with Vin 2-6V. they work well with LOC powered by single LiIon battery (that's what I'm trying to build)
thanks jib