AVR-Chat

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
>
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