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LP8555: The screen twinkling when the PWM duty cycle is 25%.

Part Number: LP8555


Tool/software:

Hi Team,

Greeting! 

We have currently found several cases of PAD screen flickering. It was observed that when the brightness is adjusted to about a 25% PWM duty cycle, flickering occurs. When the brightness is set higher (higher duty cycle) or lower (lower duty cycle), no flickering is observed.

1. Could you help check if other projects have encountered backlight flickering issues at around a 25% duty cycle?

2. What is the cause of this flickering, and are there any solutions?