SKU: SENS-3230
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Lite-On LTR-507ALS-01 SMD Ambient Light Sensor ROHS

₹59.00 (Inclusive of all taxes)
Out of Stock

The Lite-On LTR-507ALS-01 is a surface-mount ambient light sensor (ALS) designed for integration into portable electronics and IoT devices. Operating from 2.4V to 3.6V, it provides accurate light intensity measurements to enable automatic display brightness adjustment and power-saving features.

Features

  • High-accuracy ambient light sensing with spectral response close to human eye.
  • Wide operating voltage range of 2.4V to 3.6V, compatible with 3.3V logic systems.
  • Extended operating temperature range from -40°C to +85°C for robust performance.
  • Ultra-low power consumption ideal for battery-powered applications.
  • Compact SMD (Surface Mount Device) package for space-constrained PCB designs.

Out of stock

Description

The LTR-507ALS-01 is a digital ambient light sensor that utilizes a photodiode with an integrated infrared (IR) filter to provide precise illuminance measurements. Its spectral sensitivity is engineered to closely match the human eye’s photopic response, ensuring accurate perception of ambient light levels for optimal display management.

This sensor communicates via a standard digital interface (I2C), making it straightforward to integrate with microcontrollers like those found in Arduino, Raspberry Pi, and ESP32 platforms. Its robust design supports operation across a wide temperature range, making it suitable for applications from consumer electronics to industrial control panels.

Key Features

  • Human Eye Response: Spectral sensitivity closely matches the CIE photopic luminosity function for accurate perceived brightness.
  • Integrated IR Filter: Built-in infrared filtering minimizes the impact of non-visible light on measurement accuracy.
  • Digital Output: I2C interface provides reliable, noise-immune communication with host processors.
  • Wide Dynamic Range: Capable of detecting light levels across a broad spectrum of indoor and outdoor conditions.
  • Extended Temperature Operation: Functions reliably from -40°C to +85°C, ensuring stability in harsh environments.
  • Compact SMD Footprint: Minimal PCB space requirement facilitates integration into slim, modern device designs.

Applications

  • Automatic brightness adjustment for smartphone, tablet, and laptop LCD/OLED displays.
  • Backlight dimming control in automotive infotainment and instrument clusters.
  • Energy-saving lighting control in smart home and building automation systems.
  • Ambient light monitoring for IoT environmental sensors and data loggers.
  • Display optimization in industrial HMIs (Human-Machine Interfaces) and control panels.

Technical Specifications

Manufacturer Part NumberLTR-507ALS-01
Manufacturer / BrandLite-On
Sensor TypeAmbient Light Sensor (ALS)
Package / CaseSMD (Surface Mount Device)
Operating Voltage2.4 V to 3.6 V
Operating Temperature-40°C to +85°C
Communication InterfaceI2C
Spectral ResponseClose to CIE Photopic Luminosity Function
Infrared FilterIntegrated
ComplianceROHS

Frequently Asked Questions

What is the operating voltage range for the LTR-507ALS-01 sensor?

The LTR-507ALS-01 operates from a supply voltage of 2.4V to 3.6V DC. This range makes it directly compatible with standard 3.3V logic levels found in most microcontrollers, such as ESP32, Raspberry Pi, and many ARM-based systems, without requiring a level shifter.

What communication protocol does this ambient light sensor use?

This sensor utilizes the I2C (Inter-Integrated Circuit) serial communication protocol. It features a standard two-wire interface (SCL for clock and SDA for data), allowing for easy daisy-chaining with other I2C peripherals and simple integration with development boards like Arduino.

Can this sensor be used for outdoor light sensing applications?

Yes, the LTR-507ALS-01 is suitable for both indoor and outdoor applications due to its wide dynamic range and integrated IR filter, which improves accuracy in varied lighting conditions. Its extended operating temperature range of -40°C to +85°C ensures reliable performance in most environmental settings.

How does the spectral response of this sensor compare to the human eye?

The sensor's photodiode is designed with a spectral sensitivity that closely matches the CIE photopic luminosity function. This means its light intensity readings correspond well to how the human eye perceives brightness, which is critical for applications like automatic display dimming that aim to match user comfort.

Is this component ready for surface-mount assembly?

Yes, the LTR-507ALS-01 comes in a standard SMD (Surface Mount Device) package. It is intended for reflow soldering onto a PCB and requires appropriate solder paste stencil design and pick-and-place machine handling for volume production.

Package Includes

  • 1 x Lite-On LTR-507ALS-01 SMD Ambient Light Sensor

Additional Information

Weight 0.01 kg
Dimensions 10 × 8 × 5 cm