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PCA9531 Datasheet - NXP

PCA9531 - 8-bit I2C LED dimmer

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.

The PCA9531 contains an internal oscillator with two user programmable blink rates and duty cycles coupled to the output PWM.

The LED b

PCA9531 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

PCA9531_PhilipsSemiconductors.pdf

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Datasheet Details

Part number:

PCA9531

Manufacturer:

NXP ↗

File Size:

138.46 KB

Description:

8-bit i2c led dimmer.

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