TLP185(YH-TPL,SE

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Optoisolators, commonly referred to as optocouplers, are devices used to isolate and transfer electrical signals between two systems in a manner that minimizes unwanted electrical noise. The TLP185 is a type of optoisolator, specifically a type of transistor, photovoltaic output optoisolator.

The TLP185 optoisolator consists of a light-emitting diode (LED) optically coupled to an integrated circuit (IC). The LED in this optoisolator emits light when a current is applied to it, and the amount of light emitted depends on the magnitude of the current. The light passes through an optical coupler which isolates it from the electrical circuitry. The IC then converts the light into an electrical output.

The TLP185 optoisolator has an insulated-gate transistor (IGT) that serves as the output stage. The transistor is operated in a saturated state, meaning that its collector-emitter voltage is below the rated forward voltage of the output circuit. As a result, it virtually eliminates any current flow through the optoisolator.

The TLP185 optoisolator’s output circuit also includes a Schottky diode which further isolates the LED from the output transistor. The diode ensures that the light emitted from the LED does not reach the output transistor, which would cause the transistor to saturate and reduce the output current. The output circuit also includes a resistor which serves to limit the current from the output transistor.

The TLP185 optoisolator is designed for use in circuits that require electrical isolation between two systems. Its output transistor is capable of driving up to 100mA of current, and its low power consumption makes it well-suited for use in battery-powered systems. Its insulated-gate transistor output provides protection against voltage spikes, ESD, and other electrical noise. And because its output circuit is optically isolated from the input circuit, the TLP185 optoisolator can protect sensitive components in a system from power disturbances.

The TLP185 optoisolator can be used in a variety of applications, such as controlling the flow of current in motor drives, switching high-voltage signals, detecting high voltage, and interfacing isolated signals. It is also well-suited for use in safety-critical systems due to its high isolation rating and low power requirements.

In summary, the TLP185 is a transistor, photovoltaic output optoisolator designed for use in circuits that require electrical isolation between two systems. Its insulated-gate output transistor is capable of driving up to 100mA of current, and its low power consumption makes it well-suited for use in battery-powered systems. It can be used in a number of applications, including controlling the flow of current in motor drives, switching high-voltage signals, detecting high voltage, and interfacing isolated signals. And its insulated-gate transistor output provides protection against voltage spikes, ESD, and other electrical noise.

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