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PCA9634 - 8-bit Fm I2C-bus LED driver

Description

The PCA9634 is an I2C-bus controlled 8-bit LED driver optimized for Red/Green/Blue/Amber (RGBA) color mixing applications.

Features

  • I 8 LED drivers. Each output programmable at: N Off N On N Programmable LED brightness N Programmable group dimming/blinking mixed with individual LED brightness I 1 MHz Fast-mode Plus compatible I2C-bus interface with 30 mA high drive capability on SDA output for driving high capacitive buses I 256-step (8-bit) linear programmable brightness per LED output varying from fully off (default) to maximum brightness using a 97 kHz PWM signal I 256-step group brightness control allows general dimming.

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Datasheet preview – PCA9634

Datasheet Details

Part number PCA9634
Manufacturer NXP Semiconductors
File Size 368.09 KB
Description 8-bit Fm I2C-bus LED driver
Datasheet download datasheet PCA9634 Datasheet
Additional preview pages of the PCA9634 datasheet.

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Full PDF Text Transcription

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www.DataSheet4U.com PCA9634 8-bit Fm+ I2C-bus LED driver Rev. 06 — 12 September 2008 Product data sheet 1. General description The PCA9634 is an I2C-bus controlled 8-bit LED driver optimized for Red/Green/Blue/Amber (RGBA) color mixing applications. Each LED output has its own 8-bit resolution (256 steps) fixed frequency Individual PWM controller that operates at 97 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 190 Hz and an adjustable frequency between 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.
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