NXP PCA9955ATW/Q900J

线性3V5.5V57mA

Overview

NXP Semiconductors PCA9955A 16-channel Fm+ I�C-bus LED Drivers are constant current LED drivers optimized for dimming and blinking 57mA 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 31.25kHz with a duty cycle that is adjustable from 0% to 100% 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 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.

Features

Tape & Reel (TR) Package
Available in the 28-TSSOP (0.173, 4.40mm Width) Exposed Pad package
Operating temperature of -40°C~85°C TA
Frequency of 8MHz
Supply voltage of 3.3V

Surface Mount Mounting Type

Applications

There are a lot of NXP USA Inc.
PCA9955ATW/Q900J LED Driver ICs applications.

• Museum lighting
• High-end retail lighting
• Medical surgery lighting
• Replacement lamps
• Panel lighting
• Down lights
• Linear fluorescent
• A- lamps
• General LED Lighting: Down-lights, Base-lights, Ceiling Lights, Exterior Lights
• Industrial LED Lighting: Image Recognition Devices