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TLC59108: Dimming issue

Part Number: TLC59108

Hi

Problems are occurring at customers.

The customer concurrently controls OUT 0 to OUT 7 using the GRPPWM register of TLC 59108.
The duty of GRPPWM is controlled from the host to the TLC59108 at intervals of 5ms.
However, duty is not reflected at a fixed timing, resulting in the LED being stopped, causing the LEDs to flicker.
Is there anything you can think about this cause?

TLC59108.pdf

Best Regard

T Kishi