SPECIFICATIONS

LTR-390UV is an integrated low-voltage I2C ambient light sensor (ALS) and ultraviolet light sensor (UVS), which converts light intensity into digital output signals that can be directly transmitted through the I2C interface. It provides linear ALS response over a wide dynamic range, making it ideal for applications in high ambient brightness. This sensor has a programmable interrupt with hysteresis to respond to events, and LTR390 is one of the few low-cost UV sensors, and it is a pretty good sensor! Has a UV (UVA) spectral response ranging from 280nm to 430nm and raw data output. It can be applied to identify the UV index in ambient light, which helps people effectively protect themselves from sunburn or eye damage. The professional level conversion IC we use is compatible with 3.3V-5V microcontroller communication and has anti reverse circuit.

feature

I2C communication (100kHz or 400kHz)

3.3V and 5V compatible

13-20 bit effective resolution

Interrupt function

Spectral response close to the human eye

Application field

UV intensity detection

Light intensity detection

Teaching Weather Experiment

Light detection experiment

UV index monitoring device

Outdoor UV detection device

Specifications

Chip: LTR390-UV

Working voltage: DC 3.3V to 5V

Working current: approximately 2.73mA (18 bit data acquisition time 100ms)

Communication interface: I2C

UV response wavelength: 280nm to 430nm

ALS spectral response wavelength: 450nm to 700nm

Output type: Digital output

Dimensions: Width 14.3mm * Length 18.8mm * Height 2.8mm

Screw hole: 3mm

Pin arrangement: 4P, 2.54mm

Environmental light reference range unit: Lux (lux)

Sunny day 30000-300000 Lux

On sunny days, indoor temperatures range from 100-1000Lux

Cloudy day 3000-10000Lux

Cloudy outdoor 50-500Lux

Cloudy indoor 5-50Lux

Indoor 10Lux at dusk

300Lux at sunrise and sunset

0.001-0.02Lux at night

Moon night 0.02-0.3 Lux

Light free office 30-50Lux

Exposed to flashlight light 8000-15000 Lux