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PCA9955

Part Number	PCA9955
Manufacturer	NXP
Description	16-channel constant current LED driver
Published	Feb 18, 2016
Detailed Description	PCA9952; PCA9955 16-channel Fm+ I2C-bus 57 mA constant current LED driver Rev. 7.1 — 29 June 2015 Product data sheet ...
Datasheet	PCA9955 PDF File

Overview

PCA9952; PCA9955 16-channel Fm+ I2C-bus 57 mA constant current LED driver Rev.
7.
1 — 29 June 2015 Product data sheet 1.
General description 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.
An additional 8-bit resolution (256 steps) group PWM controller has both a fixed frequency of 122 Hz and an adjustable frequency be...

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