SKU: SENS-3201
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Vishay VCNL4020-GS08 VDFN-10 Ambient Light Sensor

₹93.00 (Inclusive of all taxes)
Out of Stock

The Vishay VCNL4020-GS08 is a high-performance ambient light sensor (ALS) in a compact VDFN-10 package, designed for integration into portable electronics, IoT devices, and industrial control systems requiring precise light intensity measurement and adaptive display backlight control.

Features

  • Integrated proximity and ambient light sensing (ALS) in a single 10-pin VDFN package.
  • High sensitivity with spectral response closely matching the human eye.
  • Low power consumption for extended battery life in portable applications.
  • I2C digital interface for easy connection to microcontrollers like Arduino, Raspberry Pi, and ESP32.
  • Infrared filtering for accurate ambient light measurement under various lighting conditions.

Out of stock

Description

The VCNL4020-GS08 from Vishay is a sophisticated sensor module combining ambient light and proximity detection. It utilizes a photodiode optimized for the visible light spectrum, coupled with an integrated infrared emitter for proximity sensing. The sensor’s output is digitally processed and communicated via a standard I2C interface, providing reliable data to host systems for applications like automatic display brightness adjustment and touchless gesture control.

Engineered for stability and accuracy, the module features internal signal conditioning and ambient light cancellation algorithms. Its compact VDFN-10 surface-mount package makes it ideal for space-constrained designs in consumer electronics, automotive interiors, and industrial human-machine interfaces (HMIs).

Key Features

  • Combined ambient light sensor (ALS) and proximity sensor in a single, compact module.
  • Digital I2C interface (up to 400 kHz) for simplified system integration.
  • Programmable interrupt function for efficient power management.
  • Excellent ambient light spectral sensitivity, closely aligned with the photopic response of the human eye.
  • Integrated infrared LED driver for proximity sensing with programmable current.
  • High-resolution 16-bit digital output for precise light intensity measurement.
  • Optimized performance-to-cost ratio for high-volume applications.

Applications

  • Automatic display brightness adjustment in smartphones, tablets, and laptops.
  • Proximity detection for touchless gesture control in consumer electronics and automotive infotainment systems.
  • Ambient light monitoring for smart lighting systems and IoT environmental sensors.
  • Power-saving backlight control in industrial HMIs and instrumentation panels.

Technical Specifications

Manufacturer Part NumberVCNL4020-GS08
BrandVishay
Package / CaseVDFN-10
Number of Pins10
Peak Wavelength (IR LED)940 nm
Primary FunctionAmbient Light & Proximity Sensing
InterfaceI2C Digital
Supply Voltage (Typical)2.5 V to 3.6 V
Shipping Weight0.01 kg
Shipping Dimensions10 × 8 × 5 cm

Frequently Asked Questions

What is the operating voltage range for the VCNL4020-GS08 sensor?

The VCNL4020-GS08 typically operates from 2.5V to 3.6V DC. It is crucial to stay within this range to ensure accurate sensor readings and prevent damage to the integrated circuitry.

How do I communicate with this sensor using a microcontroller?

The sensor features a standard I2C digital interface. Connect the SDA and SCL pins to your microcontroller (e.g., Arduino, ESP32, Raspberry Pi) with appropriate pull-up resistors. Communication is managed through the defined I2C protocol and register map provided in the datasheet.

Can this sensor measure proximity as well as ambient light?

Yes, the VCNL4020-GS08 integrates both functions. It contains an ambient light sensing photodiode and an integrated infrared LED for proximity detection. Both measurements are available digitally via the I2C interface and can be configured independently.

What is the purpose of the infrared filtering in this ALS?

The infrared filtering ensures the ambient light measurement is accurate by minimizing the influence of infrared light sources (like sunlight or incandescent bulbs). This results in a spectral response that closely matches human eye perception, leading to more natural automatic brightness adjustments.

Package Includes

  • 1 x Vishay VCNL4020-GS08 VDFN-10 Ambient Light Sensor Module

Additional Information

Weight 0.01 kg
Dimensions 10 × 8 × 5 cm