RGB led pwm multiplexing using MCU or using direct pwm controller (LT8500).

[vinodstanur]

Hi I wan't to control around 100 RGB led (not an LED matrix) and need to obtain different colours. Now I am trying the multiplexing by switching the common anode of LED using a ring counter and applying the 3 channel PWM from MCU.
But for me, I cannot sacrifice the LED brightness, I want maximum brightness. Also multiplexing the PWM channels is not working properly when the pwm duty cycle is low. So I searched and found PWM controller which can control 48 pwm channel (https://www.linear.com/product/LT8500).

Any suggestions?

 

[captainshahid]

you can easily do it with micro .. post your circuit connection and images.