TLC5940's Big Brother: TLC5955 48-Ch, 16-Bit, PWM LED Driver w/DC,BC,Open-Short

[JoeN]

From the perspective of someone using it to build an actual sign or display, no. The point is to make it easy to keep the processor and LED driver closely synchronized for multiplexing and for eliminating "dead spots".

OK, I see it now. You don't want the PWM of each and every driver working independently because it can cause flickering.

OTOH, they could have provided a local oscillator that is selectable via SPI register. Now that would have been cool.