PCA9531 - 8-bit I2C LED dimmer

Name: PCA9531
SKU: PCA9531-36462

NXP

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Datasheet Details

Part number	PCA9531
Manufacturer	NXP
File Size	138.46 KB
Description	8-bit I2C LED dimmer
Datasheet	PCA9531_PhilipsSemiconductors.pdf

PCA9531 Product details

Description

The PCA9531 is an 8-bit I2C & SMBus I/O expander optimized for dimming LEDs in 256 discrete steps for Red/Green/Blue (RGB) color mixing and back light applications.

Features

Eight LED drivers (on, off, flashing at a programmable rate).
Two selectable, fully programmable blink rates (frequency and duty cycle) between 0.625 and 160 Hz (1.6 and 6.25 milliseconds).
256 brightness steps.
Input/outputs not used as LED drivers can be used as regular GPIOs.
Internal oscillator requires no external components.
I2C interface logic compatible with SMBus.
Internal power-on reset.
Noise filter on SCL/SDA.

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Other Datasheets by NXP

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Published: Mar 22, 2005 |