PCA9685PW PCA9685 TSSOP-28

PCA9685 16-channel, 12-bit PWM Fm+ I2C-bus LED controller

The PCA9685 is an I2C-bus controlled 16-channel LED controller optimized for Red/Green/Blue/Amber (RGBA) color backlighting applications. Each LED output has its own 12-bit resolution (4096 steps) fixed frequency individual PWM controller that operates at a programmable frequency from a typical of 24 Hz to 1526 Hz with a duty cycle that is adjustable from 0 % to 100 % to allow the LED to be set to a specific brightness value. All outputs are set to the same PWM frequency

datasheet : https://cdn-shop.adafruit.com/datasheets/PCA9685.pdf