TSOP31440

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Optical sensors rely on the detection of light for determining the physical properties of their environment. They can be used for sensing in a wide variety of applications and can be based on different physical principles. The TSOP31440 is an example of an optical sensor, belonging to the category of Photo Detectors – Remote Receiver.

The TSOP31440 is a type of remote receiver, specifically designed to receive and respond to modulated light pulses. The device itself is a combination of a photodiode, a shield to reduce noise, and an integrated amplifier circuit for signal conditioning. These components combine to quite accurately detect a wide range of 32 kHz to 56 kHz modulated light pulses from an infrared LED.

The working principle of the TSOP31440 is based on the amount of light it receives. When an infrared light pulse, modulated at a frequency between 32 kHz and 56 kHz, is aimed towards the receiver’s photodiode, it causes a corresponding current to flow in the diode. This current is then passed through the integrated amplifier, which in turn produces a corresponding voltage change at the receiver’s output, thus transmitting a logic signal.

As such, the TSOP31440 is a popular choice for a wide range of remote control applications, such as TV remotes and the like. Other uses include industrial controllers, remote input/output devices and car alarm systems. The TSOP31440 is much more accurate than most other infrared receivers, with a tolerance for receiving a wide range of both high and low frequency light sources. Additionally, it allows for extended remote control range, up to about 8 meters.

The TSOP31440 also offers superior protection from interference, as well as reverse polarity protection, making it very robust in most conditions. Its low power requirements also make it a great choice for conserving battery life. The device is also fairly inexpensive to manufacture, making it an attractive choice for many applications.

In conclusion, the TSOP31440 is an example of a Photo Detector –Remote Receiver and combines a photodiode, an integrated amplifier and a noise reduction shield to enable it to detect modulated light pulses from an infrared LED. The device is effective for sensing in a wide range of applications, such as TV remotes, industrial controllers, remote I/O and car alarm systems, and offers high accuracy and extended range, as well as excellent protection from interference and reverse polarity protection.

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