TLP385(GR-TPL,E

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Optoisolators – Transistor, Photovoltaic Output (TLP385) is a type of optical isolator which is commonly used in applications where isolation between two circuits is required. The TLP385 is an optically coupled isolator that combines a GaAs infrared light source with a NPN silicon phototransistor. It is available in through hole or surface mount packages and is highly resistant to ambient light and noise.

The TLP385 optoisolator is a transistor output device, which means its output is an open collector PNP transistor. It means that the output transistor is always off except when it is switched on by an optical signal. The phototransistor used in the optoisolator is a low-power consuming NPN silicon transistor that can handle up to 200 volts of reverse voltage.

TLP385 optoisolators are used in a variety of applications where signal isolation is required. These optoisolators offer high immunity to surge voltages, low propagation delay, and high insulation resistance from input to output. Since these optoisolators allow signal transmission through isolation, they are ideal for use in power line control, switch mode power supplies, motor control, and AC/DC current converters. They also find application in applications where electromechanical and/or inductive circuitry are used.

The optoisolator works by using infrared light emitted by the GaAs emitting diode to activate the NPN phototransistor. The light is reflected off of the internal surface of the opto-isolator and back into the diode, which then turns off again. This generates an on/off cycle when the light is turned on as well as a ‘switch’ between devices, transferring signals without compromising signal integrity.

Due to its superior performance in terms of signal isolation, the TLP385 is one of the most commonly used optoisolators in industrial and consumer electronic applications. It is capable of switching voltages up to 200V, and can be used across a wide temperature range. In addition, the integrated design does away with the need for additional components, allowing designers to minimize costs and save space on the printed circuit board.

Overall, the TLP385 optoisolator is an excellent choice for applications requiring signal isolation and gate switching. Its strong insulation resistance, low propagation delay, and exceptional surge immunity make it a popular choice in a variety of applications. It also offers a cost-effective solution for designers due to its integrated design and its wide temperature range.

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