TSL251RD-TR

Product Overview

The TSL251RD-TR belongs to the category of light-to-voltage optical sensors. It is commonly used in applications such as ambient light sensing, backlight control for displays, and industrial lighting control. The sensor possesses characteristics such as high sensitivity, low dark voltage, and a wide dynamic range. It is typically packaged in a small surface-mount package and is available in tape and reel packaging with a specific quantity per reel.

Specifications

• Operating Voltage: 2.7V to 3.6V
• Output Type: Voltage
• Sensing Range: 0.1 lux to 60,000 lux
• Package Type: Surface Mount
• Package / Case: 6-SMD
• Wavelength: 400nm to 1000nm

Detailed Pin Configuration

The TSL251RD-TR features a 6-pin surface mount package with pin configuration as follows: 1. VCC 2. GND 3. OUT 4. NC 5. NC 6. ADDR

Functional Features

The sensor operates by converting light intensity to a proportional output voltage. It utilizes an integrated photodiode and amplifier to achieve this functionality. The device also incorporates an I2C interface for communication with microcontrollers, enabling seamless integration into various systems.

Advantages and Disadvantages

Advantages

• High sensitivity to light
• Wide operating range
• Small form factor
• Integrated I2C interface for easy interfacing

Disadvantages

• Susceptible to interference from ambient infrared light
• Limited accuracy in extreme temperature conditions

Working Principles

The TSL251RD-TR operates based on the principle of photoconductivity, where incident light photons generate electron-hole pairs in the photodiode, resulting in a change in conductivity and subsequently, a corresponding change in output voltage. This voltage is then utilized for ambient light measurement and control purposes.

Detailed Application Field Plans

The TSL251RD-TR finds extensive application in various fields including: - Mobile devices for automatic display brightness adjustment - Industrial lighting systems for energy-efficient control - Consumer electronics for adaptive backlight control - Automotive applications for interior lighting control

Detailed and Complete Alternative Models

Some alternative models to the TSL251RD-TR include: - TSL257-LF - TSL2591D - OPT3001DN

In conclusion, the TSL251RD-TR serves as a versatile light-to-voltage sensor with a wide range of applications, offering high sensitivity and ease of integration. Its compact design and functional features make it a preferred choice for ambient light sensing and control in various electronic systems.

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