NXP PCA9958HN/Q900Y

Overview

NXP Semiconductors PCA9955A 16-channel Fm+ I�C-bus LED Drivers are constant current LED drivers optimized for dimming and blinking 57mA Red/Green/Blue/Amber (RGBA) LEDs in amusement products. Each LED output has its own 8-bit resolution (256 steps) fixed frequency individual PWM controller that operates at 31.25kHz with a duty cycle that is adjustable from 0% to 100% 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 122Hz and an adjustable frequency between 15Hz to once every 16.8 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.

Features