PCA9956B Datasheet - NXP

PCA9956B LED driver

The PCA9956B is an I2C-bus controlled 24-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 .

PCA9956B Features

* PCA9956B Product data sheet

* 24 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

* 24 constant

PCA9956B-NXP.pdf