PCA9625D
description
The PCA9625 is an I2C-bus controlled 16-bit LED driver optimized for voltage switch dimming and blinking 100 m A Red/Green/Blue/Amber (RGBA) LEDs. Each LED output has its own 8-bit resolution (256 steps) fixed frequency individual PWM controller that operates at 97 k Hz with a duty cycle that is adjustable from 0 % to 99.6 % to allow the LED to be set to a specific brightness value. An additional 8-bit resolution (256 steps) group PWM controller has both a fixed frequency of 190 Hz and an adjustable frequency between 24 Hz to once every 10.73 seconds with a duty cycle that is adjustable from 0 % to 99.6 % that is used to either dim or blink all LEDs with the same value.
Each LED output can be off, on (no PWM control), set at its individual PWM controller value or at both individual and group PWM controller values. The PCA9625 operates with a supply voltage range of 2.3 V to 5.5 V and the 100 m A open-drain outputs allow voltages up to 24 V.
The PCA9625 is one of the first LED...
