Datasheet4U Logo Datasheet4U.com

PCA9922 - 8-channel Constant Current LED

Description

The PCA9922 is an 8-channel constant current LED driver designed for LED signage and display applications.

The output current is adjustable from 15 mA to 60 mA controlled by an external series resistor.

Features

  • 25 MHz serial interface.
  • 3.3 V to 5.5 V operation.
  • 8 LED low side constant current outputs.
  • Global control for the 8 LED outputs variable between 15 mA to 60 mA.
  • 15 mA to 60 mA maximum current for all 8 output channels set by an external resistor.
  • Constant current matching at 25 °C, VDD = 5.0 V.
  • Bit-to-bit: ±6 %.
  • Chip-to-chip: ±10 %.
  • Gradual turn-on/turn-off output to limit EMI.
  • Error detection mode for li.

📥 Download Datasheet

Datasheet preview – PCA9922

Datasheet Details

Part number PCA9922
Manufacturer NXP
File Size 245.25 KB
Description 8-channel Constant Current LED
Datasheet download datasheet PCA9922 Datasheet
Additional preview pages of the PCA9922 datasheet.

📁 Similar Datasheet

  • PCA9306 - SMBus Voltage-Level Translator (Texas Instruments)
  • PCA9306 - Dual bidirectional I2C-bus and SMBus voltage-level translator (NXP Semiconductors)
  • PCA9306 - Dual Bidirectional I2C-bus and SMBus Voltage-Level Translator (ON Semiconductor)
  • PCA9306-Q1 - SMBus Voltage-Level Translator (Texas Instruments)
  • PCA9502 - 8-bit I/O expander (NXP Semiconductors)
  • PCA9506 - 40-bit I2C-bus I/O port (NXP Semiconductors)
  • PCA9507 - 2-wire serial bus extender (NXP Semiconductors)
  • PCA9510A - Hot swappable I2C-bus and SMBus bus buffer (NXP Semiconductors)
  • PCA9511A - Hot swappable I2C-bus and SMBus bus buffer (NXP Semiconductors)
  • PCA9513 - Hot swappable I2C and SMBus bus buffer (Philips)
Other Datasheets by NXP
  • PCA9901 - One Wire Single LED Driver
  • PCA9952 - 16-channel constant current LED driver
  • PCA9952-Q900 - 16-channel constant current LED driver
  • PCA9952Q900 - 16-channel constant current LED driver
  • PCA9955 - 16-channel constant current LED driver
  • PCA9955-Q900 - 16-channel constant current LED driver
  • PCA9955A - 16-channel Fm+ I2C-bus 57 mA/20 V constant current LED driver
  • PCA9955Q900 - 16-channel constant current LED driver

Full PDF Text Transcription

Click to expand full text
PCA9922 8-channel constant current LED driver with output error detection Rev. 2 — 6 April 2011 Product data sheet 1. General description The PCA9922 is an 8-channel constant current LED driver designed for LED signage and display applications. The output current is adjustable from 15 mA to 60 mA controlled by an external series resistor. The outputs are controlled via a serial interface with a maximum clock frequency of 25 MHz to allow for the system requirement of high volume data transmission. Each of the 8 channel outputs has edge rate control to limit the change in current when the outputs are enabled or disabled. The device has built-in circuitry for detecting LED open-circuit and output short to ground.
Published: |