SKU: SENS-3240
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EG Micro EG4003C SOP-8 Ambient Light Sensor

₹19.00 (Inclusive of all taxes)
Out of Stock

The EG Micro EG4003C is a compact SOP-8 ambient light sensor (ALS) designed for automatic brightness adjustment in portable electronics and displays. It features a wide detection range, low power consumption, and a spectral response closely matched to the human eye, making it ideal for integration into Arduino, Raspberry Pi, and other microcontroller-based systems.

Features

  • Human-eye spectral response for accurate ambient light measurement
  • Wide operating temperature range from -40°C to +85°C
  • Low power consumption for battery-powered applications
  • Compact SOP-8 surface-mount package for space-constrained designs
  • Integrated infrared filtering for improved accuracy

Out of stock

Description

The EG4003C ambient light sensor operates by converting incident light intensity into a corresponding electrical signal. Its photodiode and integrated signal conditioning circuitry are optimized to filter out infrared interference, providing a measurement that closely aligns with human visual perception. This makes it superior for applications where display brightness must adapt naturally to environmental conditions.

Housed in a robust SOP-8 package, the sensor is designed for reliable performance across a broad industrial temperature range. Its digital or analog output (specific interface depends on variant) facilitates easy connection to microcontrollers like Arduino, ESP32, or STM32, as well as integration into larger embedded systems for smart lighting and energy management.

Key Features

  • Precision ambient light sensing with human-eye matching spectral curve
  • Designed for high reliability across extreme temperatures (-40°C to +85°C)
  • Optimized for low-voltage operation, compatible with 3.3V and 5V logic systems
  • Infrared rejection filter minimizes measurement error from IR sources
  • Surface-mount SOP-8 package enables automated PCB assembly
  • High-value build offering stable performance for adaptive display systems

Applications

  • Automatic backlight dimming for smartphones, tablets, and laptop displays
  • Smart lighting control in IoT devices and home automation systems
  • Brightness optimization for automotive instrument clusters and infotainment screens
  • Energy-saving light management in consumer electronics and appliances
  • Ambient light monitoring for embedded systems and industrial HMIs

Technical Specifications

ManufacturerEG Micro
Manufacturer Part Number (MPN)EG4003C
Package / CaseSOP-8
Number of Pins8
Operating Temperature Range-40°C to +85°C
Sensing TypeAmbient Light (ALS)
Key FeatureInfrared Filtering
ComplianceROHS

Frequently Asked Questions

What is the output interface of the EG4003C sensor?

The EG4003C typically provides a digital or analog output proportional to the ambient light intensity. The specific protocol (e.g., I2C, analog voltage) depends on the exact variant. You should consult the official EG Micro datasheet for the precise pinout and communication interface to correctly wire it to your microcontroller (Arduino, Raspberry Pi, etc.).

How does the infrared filtering improve sensor accuracy?

The integrated infrared (IR) filter blocks or attenuates infrared wavelengths from the measured light. Since human vision is less sensitive to IR, its inclusion ensures the sensor's spectral response closely matches the human eye's sensitivity curve. This results in more accurate ambient light readings for applications like display dimming, where perception is key, and prevents false triggers from IR-rich sources like incandescent bulbs.

What is the operating voltage range for this sensor?

While the exact voltage range should be verified in the datasheet, ambient light sensors like the EG4003C are commonly designed for low-power operation, typically between 2.5V and 5.5V. This makes them directly compatible with standard 3.3V and 5V microcontroller logic levels. Always ensure your supply voltage is within the sensor's specified limits to prevent damage and ensure accurate readings.

Package Includes

  • 1 x EG Micro EG4003C SOP-8 Ambient Light Sensor

Additional Information

Weight 0.01 kg
Dimensions 0.5 × 0.8 × 0.15 cm