BH1750FVI

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BH1750FVI

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Ambient Light Sensors

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Specifications

Attribute Value

Overview

Description

The BH1750FVI is a digital ambient light sensor IC designed for applications requiring precise light intensity measurement. Manufactured by ROHM Semiconductor, this sensor integrates a photodetector and an ADC (Analog-to-Digital Converter) to directly output a digital signal corresponding to the ambient light level. It communicates via an I2C interface, making it easy to integrate with microcontrollers and other digital systems.
The BH1750FVI is known for its wide measurement range, typically between 1 to 65535 lux, providing high-resolution and accurate readings. It features selectable measurement modes, including continuous and one-time measurements, allowing flexibility based on the application's power and accuracy requirements. The sensor is commonly used in smartphones, LCD TVs, and other devices for automatic brightness control and energy-saving functions. Its compact size and low power consumption make it a popular choice for battery-powered devices. Overall, the BH1750FVI is valued for its ease of use, reliability, and precision in measuring ambient light levels.

Equivalent

The BH1750FVI is a digital light intensity sensor commonly used for ambient light sensing. Equivalent products include the TSL2561 and TSL2591 from ams-OSRAM, the VEML7700 from Vishay, and the MAX44009 from Maxim Integrated. These sensors provide similar functionality in terms of measuring ambient light levels and communicating via I2C interfaces. Always check the datasheets for specific feature comparisons, as differences in sensitivity, range, and additional features may be present.

Features

The BH1750FVI is a digital light sensor IC that is primarily used to measure ambient light intensity. Developed by ROHM Semiconductor, it features high sensitivity and a wide range of measurement capabilities. Key features include:
1. Measurement Range: It can measure light intensity from 0 to 65,535 lux, making it suitable for various lighting conditions.
2. I2C Interface: The sensor communicates via the I2C protocol, enabling easy integration with microcontrollers and other devices.
3. Low Power Consumption: The BH1750FVI operates with low power, making it ideal for battery-operated devices.
4. High Resolution: It can provide precise measurements with a resolution of 1 lux.
5. Compact Package: The sensor is available in a small package, making it suitable for space-constrained applications.
6. Built-in ADC: The built-in analog-to-digital converter simplifies the design by eliminating the need for external components.
7. Automatic Measurement Mode: It features automatic measurement modes to facilitate ease of use.
These features make the BH1750FVI suitable for applications like displays, smartphones, and lighting systems where ambient light measurement is crucial.

Pinout

The BH1750FVI is a digital light sensor IC that measures ambient light intensity. It features an I²C interface and is used in applications such as LCD backlight control and general lighting conditions detection. The IC comes in a small, 8-pin SOP package.
Here's a brief overview of its pin functions:
1. VCC: Power Supply (3.0V to 3.6V).
2. GND: Ground.
3. SDA: Serial Data Input/Output for I²C communication.
4. SCL: Serial Clock Input for I²C communication.
5. ADDR: Address Select pin for I²C communication, used to change the device address.
6. NC: No Connection (ensure it is left unconnected).
7. NC: No Connection (ensure it is left unconnected).
8. PD: Power Down (active low), used to enter power-saving mode.
The BH1750FVI provides digital output in lux (lx) and is known for its high precision and low power consumption, making it suitable for battery-powered devices.

Manufacturer

The BH1750FVI is a digital light sensor manufactured by Rohm Semiconductor. Rohm Semiconductor is a Japanese company that specializes in the design and manufacture of electronic components, including integrated circuits, semiconductors, and other electronic parts. The company is known for its wide range of products used in various applications such as consumer electronics, automotive systems, and industrial equipment. Rohm focuses on innovation and quality, striving to meet the demands of the rapidly evolving electronics industry.

Application

The BH1750FVI is a digital ambient light sensor used primarily in applications that require light measurement for adjusting display brightness and power management. Key application areas include:
1. Smartphones and Tablets: Automatically adjusting screen brightness based on ambient light.
2. Automotive Lighting: Managing dashboard and infotainment system illumination.
3. Backlight Control: Optimizing brightness for LCD displays in TVs and monitors.
4. Smart Home Devices: Enhancing energy efficiency and user comfort.
5. Wearable Devices: Balancing display brightness for improved battery life.
6. Camera Exposure Settings: Assisting in automatic exposure adjustments in digital cameras.
These applications benefit from the sensor's high sensitivity, low power consumption, and simple I2C interface.

Package

The BH1750FVI is an ambient light sensor in a small, surface-mount package. Specifically, it comes in an 8-pin SOP (Small Outline Package), which is designed for compact applications and ease of integration onto printed circuit boards (PCBs).

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