PCA9952
Overview
The PCA9952 and PCA9955 are 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 LEDn output has its own 8-bit resolution (256 steps) fixed frequency individual PWM controller that operates at 31.25 kHz with a duty cycle that is adjustable from 0 % to 99.6 % to allow the LED to be set to a specific brightness value.
- The PCA9952 has only three hardware address pins compared to four on PCA9955.
- The PCA9952 has an output enable pin (OE) and the PCA9955 does not. The active LOW output enabl
