PCA9532 Datasheet - NXP

PCA9532, 16-bit I2C LED dimmer

INTEGRATED CIRCUITS PCA9532 16-bit I2C LED dimmer Product data Supersedes data of 2003 Feb 26 2003 May 02 Philips Semiconductors Philips Semiconduc.
The PCA9532 is a 16-bit I2C-bus and SMBus I/O expander optimized for dimming LEDs in 256 discrete steps for Red/Green/Blue (RGB) color mixing and back.

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Datasheet Details

Part number:

PCA9532

Manufacturer:

NXP ↗

File Size:

269.33 KB

Description:

16-bit I2C LED dimmer

Features

* 16 LED drivers (on, off, flashing at a programmable rate)
* 2 selectable, fully programmable blink rates (frequency and duty cycle) between 0.625 and 160 Hz (6.4 seconds and 6.25 milliseconds)
* 256 brightness steps
* Input/outputs not used as LED drivers can be u

Applications

* The PCA9532 contains an internal oscillator with two user programmable blink rates and duty cycles coupled to the output PWM. The LED brightness is controlled by setting the blink rate high enough (> 100 Hz) that the blinking cannot be seen and then using the duty cycle to vary the amount of time t

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