The NXP PCA9685 is an I2C bus controlled 16 channel LED controller optimized for red or green or blue or amber (RGBA) colour 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. No output glitches on power-up
Supports hot insertion
Low standby current