Datasheet4U Logo Datasheet4U.com

LX1977 - SMBus Ambient Light Sensor

Description

The LX1977 is a CMOS based Ambient Light Sensor (ALS) with an I2C compatible SMBus interface.

This device is ideal for controlling display back lighting systems of low cost consumer products such as TV, portable computers, handheld devices, or medical devices.

Features

  • adjustable input range and gain. The LX1977 has a spectral response that emulates the human eye. Specially designed circuitry produces peak spectral response at 555 nm, with IR response less than 10% above 810 nm. Input dynamic range of this device is adjustable via SMBus command. It can be set to either 0 ~ 500 lux, 0 ~ 1000 lux, 0 ~ 2500 lux or 0 ~ 5000 lux. ALS internal compensation ensures photodiode dark current are at very low levels, providing high output accuracy at low ambient light le.

📥 Download Datasheet

Datasheet preview – LX1977

Datasheet Details

Part number LX1977
Manufacturer Microsemi
File Size 520.08 KB
Description SMBus Ambient Light Sensor
Datasheet download datasheet LX1977 Datasheet
Additional preview pages of the LX1977 datasheet.

📁 Similar Datasheet

  • LX1973B - Automotive Light Sensor (Microsemi)
  • LX1911 - 1.5A - 1.1MHZ PWM Step-Down Regulator (Microsemi)
  • LX1912 - VREF 800mV -1.0A -1.2MHz PWM (Microsemi)
  • LX1918 - 1.8A Step-Down Synchronous Converter (Microsemi)
  • LX1992 - High Efficiency Boost LED Driver (Microsemi)
  • LX10M - Lux-Bridge (ZOWIE)
  • LX1214E500X - NPN microwave power transistor (NXP)
  • LX121XS-LE01 - TFT LCD (ETC)
  • LX128B - High Performance Interfacing and Switching (Lattice Semiconductor)
  • LX128B-32F208C - High Performance Interfacing and Switching (Lattice Semiconductor)
Other Datasheets by Microsemi Corporation
  • LX1970 - Visible Light Sensor
  • LX1971 - Wide Range Visible Light Sensor
  • LX1972 - Ambient Light Detector
  • LX1972A - Ambient Light Detector
  • LX1973 - Automotive Light Sensor
  • LX1973A - Automotive Light Sensor
  • LX1974 - Ambient Light Detector
  • LX1910 - Step-Down Regulator

Full PDF Text Transcription

Click to expand full text
WWW.Microsemi .COM LX1977 TM ® SMBus Ambient Light Sensor PRODUCTION DATASHEET DESCRIPTION The LX1977 is a CMOS based Ambient Light Sensor (ALS) with an I2C compatible SMBus interface. This device is ideal for controlling display back lighting systems of low cost consumer products such as TV, portable computers, handheld devices, or medical devices. The LX1977 is optimized for a linear, accurate, and very repeatable input and output transfer function. The device also features adjustable input range and gain. The LX1977 has a spectral response that emulates the human eye. Specially designed circuitry produces peak spectral response at 555 nm, with IR response less than 10% above 810 nm. Input dynamic range of this device is adjustable via SMBus command.
Published: |