Re: Luxeon 5w driver
- From: ehsjr <ehsjr@xxxxxxxxxxxxxxxx>
- Date: Thu, 19 Oct 2006 17:49:17 GMT
Olivier wrote:
Hello all.
Does anyone have an idea on how to build a constent current (1A) driver for such
a big white led (Vf=3,5v). I need to ligh it from 2 NiMh batteries (2,2v).
I have already tried a TPS61020 from TI (http://i10.tinypic.com/3yfmno3.gif) but
I had big thermal problem caused by the small package of the IC.
Olivier, Italy.
According to the data***, the TPS61020 provides only about
350 mA. Take a look at the TPS6130, 31 or 32
http://focus.ti.com/lit/ds/symlink/tps61031.pdf
Ed
.
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