TSSP77P38TR

Optical Sensors - Photo Detectors - Remote Receiver

The TSSP77P38TR is an optical remote receiver designed for visible light and IR applications. This device is a digital module specifically designed to be used in automatic control applications such as remote control, home automation, industrial and medical applications as well as touchscreen and navigation technologies. It is capable of detecting light up to 400 nm in wavelength and features a peak differential sensitivity of 460 nm.

The TSSP77P38TR has two distinct parts, the receiver unit and the transmitting unit. The receiver unit contains a photo diode or photodetector which is used to detect the light from the transmitter. This photodetector is directly connected to a transistor which produces an output signal when activated. This signal is then sent to a microcontroller or other control unit to actuate a response. The transmitting unit consists of an LED which emits light at a specific wavelength which is then detected by the receiver unit.

The working principle of the TSSP77P38TR is based on the Factional Discharge Theory. This theory states that when a current flows through a solution the electric charge is distributed between the positive and negative particles of the solution. This charge distribution is proportional to the applied electric field and is known as Fractional Discharge. The TSSP77P38TR utilizes this theory by using a photodiode or photodetector connected to a transistor. When light is shone onto the photodetector, the output signal is changed and this enables the module to change between ‘ON’ and ‘OFF’ states. The photodetector is sensitive to different levels of light that may be emitted from the transmitter, from very small levels to full brightness. This enables the TSSP77P38TR to be used in a multitude of applications including security systems, lighting controllers and environmental measurement systems.

The TSSP77P38TR is the perfect solution for many applications that require remote controlling, from home consumption controllers to medical and automotive applications. This digital module is designed to meet the requirements of a wide variety of applications and is compatible with a number of different control units including microcontrollers, signal conditioning circuits, and op-amps. Not only is it robust and reliable, but it also provides a cost-effective solution for remote control applications.