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PCA9633 - 4-bit Fm I2C-bus LED driver

Description

The PCA9633 is an I2C-bus controlled 4-bit LED driver optimized for Red/Green/Blue/ Amber (RGBA) color mixing applications.

Features

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

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Datasheet preview – PCA9633

Datasheet Details

Part number PCA9633
Manufacturer NXP Semiconductors
File Size 519.31 KB
Description 4-bit Fm I2C-bus LED driver
Datasheet download datasheet PCA9633 Datasheet
Additional preview pages of the PCA9633 datasheet.

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Full PDF Text Transcription

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PCA9633 4-bit Fm+ I2C-bus LED driver Rev. 6.0 — 19 January 2023 Product data sheet 1 General description The PCA9633 is an I2C-bus controlled 4-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. A fifth 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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