SKU: SENS-3231
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Lite-On LTR-381RGB-01 SMD-6 RGB Ambient Light Sensor ROHS

₹74.00 (Inclusive of all taxes)
Out of Stock

The Lite-On LTR-381RGB-01 is a compact SMD-6 RGB ambient light sensor designed for integration into portable electronics and IoT devices. Operating from 1.7V to 3.6V, it provides accurate RGB and ambient light intensity data, making it ideal for display brightness management and color correction in smartphones, tablets, and wearables.

Features

  • RGB and ambient light sensing in a single 2x2mm SMD package.
  • Low operating voltage range from 1.7V to 3.6V, suitable for battery-powered devices.
  • Integrated infrared filtering for improved spectral accuracy matching human eye response.
  • 6-pin SMD configuration for compact PCB integration.
  • ROHS compliant for use in environmentally conscious electronic designs.

Out of stock

Description

The LTR-381RGB-01 is a highly integrated digital sensor that combines RGB color sensing and ambient light detection. It utilizes a photodiode array with an IR filter to provide accurate light intensity measurements across the visible spectrum, enabling precise adaptive brightness control and color temperature adjustment in display systems.

Its SMD-6 package and ultra-compact 2x2mm footprint allow for direct placement on densely populated PCBs, typical in modern consumer electronics. The sensor’s digital I2C output simplifies interface with microcontrollers like those found in Arduino, Raspberry Pi, and ESP32 platforms, facilitating seamless integration into smart lighting and user interface applications.

Key Features

  • Dual-Function Sensing: Provides simultaneous RGB color and ambient light (lux) measurements.
  • Human Eye Response Matching: Integrated IR filter ensures spectral sensitivity closely matches photopic vision.
  • Ultra-Low Power Operation: Optimized for extended battery life in portable and wearable devices.
  • High-Resolution Digital Output: Delivers precise light intensity data via I2C communication protocol.
  • Robust SMD Construction: 6-pin, 2x2mm package designed for reliable surface-mount assembly.
  • Wide Dynamic Range: Capable of detecting light levels from dim indoor to bright outdoor environments.

Applications

  • Automatic display brightness and color temperature adjustment in smartphones, tablets, and laptops.
  • Ambient light-responsive backlight control for automotive instrument clusters and infotainment screens.
  • Color and light sensing for smart home IoT devices, lighting systems, and environmental monitors.
  • Integration into wearable devices for user interface adaptation based on surrounding light conditions.

Technical Specifications

Manufacturer Part NumberLTR-381RGB-01
BrandLite-On
Package / CaseSMD-6
Dimensions (Package)2 x 2 mm
Pin Count6
Operating Voltage1.7 V to 3.6 V
Sensing FunctionRGB Color & Ambient Light Intensity
Output InterfaceDigital (I2C)
Spectral FilterIntegrated Infrared (IR) Filter
ComplianceROHS

Frequently Asked Questions

What is the operating voltage range for the LTR-381RGB-01 sensor?

The LTR-381RGB-01 operates from 1.7V to 3.6V DC. This low voltage range makes it directly compatible with 3.3V logic systems common in microcontrollers like ESP32, STM32, and Raspberry Pi, and ideal for battery-powered portable devices.

What communication protocol does this sensor use?

This sensor uses the I2C (Inter-Integrated Circuit) serial communication protocol. It provides a standard two-wire interface (SCL, SDA) for easy connection to most microcontrollers, allowing for simple reading of RGB and ambient light intensity data.

What is the purpose of the integrated IR filter?

The integrated infrared filter blocks non-visible IR light, ensuring the sensor's spectral response closely matches that of the human eye (photopic response). This results in more accurate ambient light and color readings for applications like automatic display brightness adjustment.

Is this sensor suitable for surface-mount assembly?

Yes, the LTR-381RGB-01 is designed for surface-mount technology (SMT). It comes in a compact SMD-6 package with a 2x2mm footprint, requiring appropriate PCB pad layout and reflow soldering processes for proper installation.

Package Includes

  • 1 x Lite-On LTR-381RGB-01 SMD-6 Ambient Light Sensor

Additional Information

Weight 0.01 kg
Dimensions 0.2 × 0.2 cm