PCA9530 2-bit I2C-bus LED dimmer

NXP Semiconductors

Description

www.DataSheet4U.com PCA9530 2-bit I2C-bus LED dimmer Rev.03 * 26 February 2009 Product data sheet 1.General .
The PCA9530 is a 2-bit I2C-bus and SMBus I/O expander optimized for dimming LEDs in 256 discrete steps for Red/Green/Blue (RGB) color mixing and backl.

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Datasheet Specifications

Part number: PCA9530
Manufacturer: NXP ↗ Semiconductors
File Size: 186.32 KB
Datasheet: PCA9530_NXPSemiconductors.pdf
Description: 2-bit I2C-bus LED dimmer

Features

* I 2 LED drivers (on, off, ﬂashing at a programmable rate) I 2 selectable, fully programmable blink rates (frequency and duty cycle) between 0.591 Hz and 152 Hz (1.69 seconds and 6.58 milliseconds) I 256 brightness steps I Input/output not used as LED drivers can be used as regular GPIOs I Internal o

Applications

* The PCA9530 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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