NXP PCU9656B,118

线性2.3V5.5V100mA

Overview

The PCU9656 is a UFm I²C-bus controlled 24-bit LED driver optimized for voltage switchdimming and blinking 100 mA Red/Green/Blue/Amber (RGBA) LEDs. Each LEDn outputhas its own 8-bit resolution (256 steps) fixed frequency individual PWM controller thatoperates at 97 kHz (typical) with a duty cycle that is adjustable from 0 % to 99.6 % toallow the LED to be set to a specific brightness value. An additional 8-bit resolution (256steps) group PWM controller has both a frequency of 190 Hz and an adjustable frequencybetween 24 Hz to once every 10.73 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.

A new feature to control LEDn output pattern is incorporated in the PCU9656. A newcontrol byte called ‘Chase Byte’ allows enabling or disabling of selective LEDn outputsdepending on the value of the Chase Byte. This feature greatly reduces the number ofbytes to be sent to the PCU9656 when repetitive patterns need to be displayed as increating a marquee chasing effect.

Features

Tape & Reel (TR) Package
Linear Type
Yes Internal Switch(s)
24 Number of Outputs
2.3V Voltage - Supply (Min)
5.5V Voltage - Supply (Max)
40V Voltage - Output
100mA Current - Output / Channel
PWM Dimming
Backlight Applications
Surface Mount Mounting Type