sjim:
I need to learn more about the high current output of this 2803D IC... sounds like a possible upgrade from the TLC
"WS2803 has 18 output channels, each channel can output up to 30mA constant current." Two more channels but 1/4 the power on any single channel.
As far as price goes the TLC5940 can be had for just as low or better price than the WS2803.