AVR-Chat

you may use TPIC6A595 shift register, with 1A o/p per channel.., but its
spi., similay to 74hc595.., but powerfull

On Sat, Aug 28, 2010 at 9:34 PM, Philippe Habib <phabib@well.com> wrote:

>
>
> Its so great you posted this. A friend of mine is looking to drive a
> bunch of LEDs with only a few wires. I'll have to check this out.
>
>
> On Aug 27, 2010, at 5:59 PM, Chuck Hackett wrote:
>
> > I have done a lot of searching for an LED driver with:
> > - I2C interface
> > - 16 channels (or, two 8 channel devices if 1/2 the price of a 16
> > channel device)
> > - 10 to 30 ma per channel
> > - Individual PWM adjustable constant current on a per channel basis
> > - Ability to identify fault (open/shorted) on individual channels
> > (i.e.: not
> > 'global')
> > - 5v logic supply
> > - DIP or surface mount I can deal with (TSSOP, etc.)
> >
> > I am looking at using the TI TLC59116
> > (http://focus.ti.com/lit/ds/symlink/tlc59116.pdf) which seams like a
> > very capable
> > device.
> >
> > Anybody have another favorite I should look at?
> >
> > The "individual channel PWM" knocks out a lot of devices I looked
> > at ...
> >
> > I could look at using serial-shift type interface if it was lots
> > cheaper but I'm
> > thinking that I may have other I2C devices on the board later.
> >
> > The TLC59116 is $3.92 at Newark (only supplier I found with stock).
> >
> > Cheers,
> >
> > Chuck Hackett
> > "Good judgment comes from experience, experience comes from bad
> > judgment"
> > 7.5" gauge Union Pacific Northern (4-8-4) 844
> http://www.whitetrout.net/Chuck
> >
> >
> >
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> >
>
>  
>



-- 
With Regards
Dhinesh Kumar .R


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