PCA9955A Datasheet - NXP

PCA9955A 16-channel Fm+ I2C-bus 57 mA/20 V constant current LED driver

The PCA9955A is an I2C-bus controlled 16-channel constant current LED driver optimized for dimming and blinking 57 mA 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 31.25 kHz .

PCA9955A Features

* 16 LED drivers. Each output programmable at:

* Off

* On

* Programmable LED brightness

* Programmable group dimming/blinking mixed with individual LED brightness

* Programmable LED output delay to reduce EMI and surge currents

* Gradation control for all channels

* E

PCA9955A-NXP.pdf