Hi,
I'm working in a project in which the goal is to show pictures and movies in a bike wheel using POV.
We have selected the TLC5971 because it has global brightness, SPI interface and Cascade connection between them.
The problem is that the PWM clock is 10MHz (the SPI clk will be 8MHz) and because it has 16 bits of resolution the time it takes to a completed would be (according to Eq 3 page 19 of the tlc5971 datasheet)
Ton=(100ns)*(65535)=6.554ms
Now, for this project the constraint is 2ms or less (at least 0.7mseg will be lost due to the programming time )
My question is the following:
Is there any TI LED driver with the characteristics I said that has a faster PWM clock ?
Or is there any other why to solve this issue like setting the driver to count less bits?
btw, I only need 4 bits of resolution.
Thanks in advance.
