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'[EE]: Another LED Drive question'
I have found some bi-color 8x8 LED blocks to make a moving message sign.
I'm trying to find the most cost-effective drivers to use. For each 8x8
block I need 16 sinking drivers that can handle 80 ma each. That part is
easy enough, I'm looking at TPIC6B273.(8 bit latch up to 150 ma per OC
A bit more trouble are a set of eight source drivers. Each will be
up to 1280ma, though only one will be active at any time.
It's a "One Off", so a few pennies won't matter, but I'll have eight
drivers for each 8X8X2 block, and I'm planning at least 8-12 of these
I can do discretes, but the cost X 8 X blocks goes up fast.
My knowledge of semi driver options is a few years old, I'm betting
something better than just using TIP125. 8^)
http://www.piclist.com hint: The PICList is archived three different
ways. See http://www.piclist.com/#archives for details.
Harold M Hallikainen
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