PCA9550 - 2-bit I2C LED driver

Name: PCA9550
SKU: PCA9550-36516

NXP

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Datasheet Details

Part number	PCA9550
Manufacturer	NXP
File Size	150.21 KB
Description	2-bit I2C LED driver
Datasheet	PCA9550_PhilipsSemiconductors.pdf

PCA9550 Product details

Description

The PCA9550 LED blinker blinks LEDs in I2C-bus and SMBus applications where it is necessary to limit bus trafﬁc or free up the I2C master's (MCU, MPU, DSP, chip set, etc.) timer.

Features

I 2 LED drivers (on, off, ﬂashing at a programmable rate) I 2 selectable, fully programmable blink rates (frequency and duty cycle) between 0.172 Hz and 44 Hz (5.82 seconds and 0.023 second) I Input/output not used as LED drivers can be used as regular GPIOs I Internal oscillator requires no external components I I2C-bus interface logic compatible with SMBus I Internal power-on reset I Noise ﬁlter on SCL/SDA inputs I Active LOW reset input I 2 open-drain outputs directly drive LEDs to 25 mA I Co.

📁 PCA9550 Similar Datasheet

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Other Datasheets by NXP

PCA9551 - 8-bit I2C LED driver
PCA9552 - 16-bit I2C LED driver
PCA9553 - 4-bit I2C LED driver
PCA9554A - 8-bit I2C and SMBus I/O port
PCA9555 - 16-bit I2C-bus and SMBus I/O port
PCA9555A - Low-voltage 16-bit I2C-bus I/O port

Published: Mar 22, 2005 |