Description
PCA9685 16-channel, 12-bit PWM Fm+ I2C-bus LED controller Rev.4 * 16 April 2015 Product data sheet 1.General .
The PCA9685 is an I2C-bus controlled 16-channel LED controller optimized for Red/Green/Blue/Amber (RGBA) color backlighting applications.
Features
* 16 LED drivers. Each output programmable at:
* Off
* On
* Programmable LED brightness
* Programmable LED turn-on time to help reduce EMI
* 1 MHz Fast-mode Plus compatible I2C-bus interface with 30 mA high drive capability on SDA output for driving high capacitive buses
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 out