NXP PCA9952 16-channel Fm+ I²C-bus
57mA Constant Current LED Driver
NXP PCA9952 16-channel Fm+ I2C-bus 57mA Constant Current LED Driver optimizes dimming and blinking in 57mA Red/Green/Blue/Amber (RGBA) LEDs for amusement products. Each LEDn output provides its own 8-bit resolution (256 steps) fixed frequency individual PWM controller operating at 31.25kHz with an adjustable duty cycle from 0% to 99.6%. This allows the LED to be set to a specific brightness value. An additional 8-bit resolution (256 steps) group PWM controller offers 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.