TSL257-LF

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TSL257-LF

+BOM

SENSOR OPT 470NM AMBIENT 3

  • メーカーams-オスラムUSA株式会社

  • メーカー品番 #TSL257-LF

  • データシート TSL257-LF DataSheet

  • 在庫状況22278

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仕様

属性
Part Status Obsolete
Base Product Number TSL257
Type Ambient
Wavelength 470nm
Proximity Detection No
Output Type Voltage
Voltage - Supply 2.7V ~ 5.5V
Operating Temperature 0°C ~ 70°C
Mounting Type Through Hole, Right Angle
Package / Case Radial - 3 Leads
Supplier Device Package 3 Lead Sidelooker
Packaging Bulk

概要

Description

The TSL257-LF is a light-to-voltage optical sensor, commonly used in applications requiring measurement of ambient light levels. It integrates a photodiode, operational amplifier, and feedback components on a single chip, providing a voltage output directly proportional to the intensity of light incident on the sensor. This makes it ideal for use in situations where precise light sensing is necessary, such as in display backlighting, lighting controls, and consumer electronics.
Key features include a wide operating temperature range, low power consumption, and a spectral response similar to that of the human eye, making it particularly effective for ambient light sensing in various environments. The device operates with a single supply voltage, and its compact size allows for easy integration into a variety of circuit designs.
The TSL257-LF's simplicity and efficiency make it a versatile option for designers looking to incorporate light sensing capabilities into their products without the need for complex additional circuitry.

Equivalent

The TSL257-LF is a light-to-voltage optical sensor. Equivalent products include:
1. TSL257T - Another variant from the same family.
2. APDS-9006 - A similar sensor by Broadcom.
3. BH1710FVC - A light sensor by Rohm.
4. TEMT6000 - An ambient light sensor by Vishay.
5. OPT101 - A photodiode with transimpedance amplifier by Texas Instruments.
These alternatives provide similar optical sensing capabilities, but specific electrical characteristics may vary.

Features

The TSL257-LF is a light-to-voltage optical sensor. Key features include:
1. Light Sensitivity: Converts light intensity into a proportional voltage output, making it suitable for ambient light sensing.
2. Spectral Response: Designed to detect visible light with a spectral response closely matching that of the human eye.
3. Operating Voltage: Typically operates between 2.7V to 5.5V, allowing for flexibility in different power supply situations.
4. Output: Provides a linear voltage output, which simplifies the integration with analog-to-digital converters (ADCs) in microcontroller applications.
5. Package: Available in a small, low-profile package suitable for space-constrained applications.
6. Temperature Range: Operates effectively over a wide temperature range, making it versatile for various environmental conditions.
7. Low Power Consumption: Designed for applications where power efficiency is crucial.
These features make the TSL257-LF suitable for applications in consumer electronics, industrial automation, and other areas where light measurement is required.

Pinout

The TSL257-LF is a light-to-voltage optical sensor that combines a photodiode and a transimpedance amplifier on a single monolithic CMOS integrated circuit. It has a 3-pin configuration:
1. VCC (Pin 1): This is the power supply pin. The device typically operates with a supply voltage ranging from 2.7V to 5.5V.
2. GND (Pin 2): This pin is connected to ground.
3. OUT (Pin 3): This is the output pin that provides a voltage directly proportional to the light intensity incident on the photodiode. It can be directly interfaced with an analog-to-digital converter (ADC) for light measurement applications.
The TSL257-LF is used in applications where it is important to convert light levels to a corresponding voltage output, such as in ambient light sensing, optical switch applications, and exposure meters for cameras. Its small package and low power consumption make it suitable for portable devices.

Manufacturer

The TSL257-LF is manufactured by AMS-TAOS USA Inc., which is a part of AMS (Austria Mikro Systeme). AMS is a global company specializing in the design and manufacture of advanced sensor solutions. The company focuses on sensor technologies that enable applications such as optical, environmental, imaging, and audio sensing. AMS's products are used in a wide range of industries, including consumer electronics, automotive, industrial, and medical sectors. The TSL257-LF, specifically, is a light-to-voltage optical sensor, which reflects AMS's expertise in sensor technology and its application in various fields.

Application

The TSL257-LF is a light-to-voltage optical sensor commonly used in applications that require precise light measurement. Key areas include ambient light sensing for adjusting display brightness in electronic devices, exposure control in digital cameras, and light level detection in automated lighting systems. It is also used in optical switch applications, barcode scanning, and general light sensing in industrial automation and consumer electronics. Its compact design and responsiveness make it suitable for applications where space and sensitivity are critical considerations.

Package

The TSL257-LF is packaged as a 3-lead, through-hole device. It features a photodiode and a transimpedance amplifier in a single package, typically in a clear plastic mold, allowing it to respond to light.

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