SKU: SENS-3218
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ROHM Semiconductor BH1750FVI-TR Ambient Light Sensor - I2C Interface, WSOF-6 Package

₹141.00 (Inclusive of all taxes)
Out of Stock

The ROHM Semiconductor BH1750FVI-TR is a high-precision digital ambient light sensor with an I2C interface, designed for integration into 3.3V systems like Raspberry Pi, ESP32, and STM32 microcontrollers. It provides direct lux output for automatic display brightness control and energy-saving applications.

Features

  • High-resolution digital ambient light sensor (ALS) with I2C interface
  • Wide measurement range from 1 to 65535 lux
  • Low power consumption, ideal for battery-powered devices
  • Integrated infrared filtering for accurate spectral response
  • Compact WSOF-6 surface-mount package for space-constrained designs

Out of stock

Description

The BH1750FVI-TR is a digital light intensity sensor IC that converts ambient light levels into a 16-bit digital value via a standard I2C bus. It employs a single-chip photodiode and a high-precision analog-to-digital converter, eliminating the need for external signal conditioning. Its spectral response is optimized to match the human eye’s sensitivity, ensuring accurate lux readings for display management.

Operating from a 2.4V to 3.6V supply, this sensor is designed for low-voltage embedded systems and features a wide operating temperature range from -40°C to +85°C for reliable performance in diverse environmental conditions. The integrated digital output provides excellent noise immunity compared to analog sensors.

Key Features

  • Digital I2C Output: Provides direct lux readings via a simple two-wire interface, simplifying microcontroller integration.
  • High Resolution & Accuracy: Delivers 16-bit resolution for precise light intensity measurement across a broad dynamic range.
  • Optimized Spectral Response: Built-in IR-cut filter ensures the sensor's sensitivity closely matches the human eye's photopic response.
  • Low Voltage Operation: Supports a 2.4V to 3.6V supply range, making it compatible with modern 3.3V logic systems.
  • Robust Environmental Rating: Operates reliably across an extended industrial temperature range from -40°C to +85°C.
  • Compact SMD Footprint: The WSOF-6 package minimizes board space requirements for portable and compact electronics.

Applications

  • Automatic backlight dimming for smartphones, tablets, and LCD displays
  • Energy management in IoT devices and smart home sensors
  • Ambient light adaptation in automotive dashboards and instrument clusters
  • Brightness control for e-readers and portable electronic devices
  • Light intensity monitoring in agricultural and environmental sensing systems

Technical Specifications

Manufacturer Part NumberBH1750FVI-TR
Manufacturer / BrandROHM Semiconductor
InterfaceI2C
Supply Voltage2.4 V to 3.6 V
Measurement Range1 - 65535 lux
Resolution16-bit
Operating Temperature-40°C to +85°C
Package / CaseWSOF-6
Spectral ResponseClose to human eye sensitivity (with IR filter)

Frequently Asked Questions

What is the communication protocol for the BH1750FVI-TR sensor?

The BH1750FVI-TR uses a standard I2C (Inter-Integrated Circuit) serial communication interface. It has a selectable 7-bit I2C slave address, allowing multiple sensors on the same bus. The interface simplifies wiring and firmware development for microcontrollers like Arduino, ESP32, and Raspberry Pi.

What is the operating voltage range for this sensor?

This sensor is designed for low-voltage operation with a supply range of 2.4V to 3.6V DC. It is ideally suited for 3.3V logic systems. Exceeding the maximum voltage can damage the IC. Ensure your power supply is regulated within this specified range.

How does the sensor's spectral response affect accuracy?

The BH1750FVI-TR incorporates an integrated infrared cut filter. This ensures its spectral sensitivity closely matches the human eye's photopic response, minimizing errors caused by infrared light sources. This results in more accurate lux readings for applications like display brightness control.

Can this sensor be used outdoors?

Yes, due to its wide operating temperature range of -40°C to +85°C, the BH1750FVI-TR is suitable for outdoor and industrial environments. However, for direct outdoor sunlight measurement, ensure the light intensity does not exceed the sensor's maximum range and consider proper optical diffusion or mounting.

Package Includes

  • 1 x ROHM Semiconductor BH1750FVI-TR Ambient Light Sensor IC

Additional Information

Weight 0.01 kg