ELM3084(TA)-V

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Optoisolators are electrical devices that use a light-emitting diode (LED) to transfer electrical signals between two isolated regions of an electronic system, while providing electrical isolation between them. The ELM3084(TA)-V is an optoisolator that belongs to the Triac, SCR Output family of optoisolators.

The ELM3084(TA)-V is a very compact and cost-effective isolator solution for switching AC loads from an integrated circuit. It features isolated voltage of up to 5200 Vrms, with maximal insulation resistance of up to 10^14 ohms between the input and output circuits. The device is suitable for a variety of applications including motor control, HVAC control, lighting, appliance, and industrial control.

The ELM3084(TA)-V utilizes an optically coupled SCR configuration, also known as SCR-output optoisolator, for controlling AC loads. It is designed so that its input region, which typically runs at a low voltage (0.4 to 5.5V) can be electrically isolated from the output region, which operates at AC line voltage. The optoisolator consists of a light-emitting diode (LED) and a photovoltaic SCR as its main components.

The LED acts as the optical source and generates photons that are then transferred by the embedded light-pipe to the photovoltaic SCR. When the input voltage meets the required firing condition, the LED emits light which is then absorbed by the photovoltaic SCR, allowing it to reach its required threshold and switch on the AC load.

The ELM3084(TA)-V offers a low leakage current and a fast switching time of 10 μs that help minimize power loss and ensure flawless operation under difficult environmental conditions. The optoisolator’s efficiency and extended lifetime are further increased by its low thermal resistance and minimal power dissipation.

Further enhancements include long-term durability as the device has been subjected to various tests in order to guarantee reliable performance even during extreme environmental conditions. The ELM3084(TA)-V is capable of operating over a wide temperature range of -40°C to +105°C and is ideal for high-frequency switching in LED lighting applications. It is available in surface mount DIP (Dual In-Line Package) packages for easy installation and provides good noise immunity with ESD (Electrostatic Discharge) protection.

In conclusion, the ELM3084(TA)-V is an efficient yet cost-effective optoisolator device that belongs to the Triac, SCR Output family of optoisolators. It is designed to control AC loads over a wide temperature range and offers long-term durability and extended lifetime with its low thermal resistance, low leakage current, and fast switching time. The device is suitable for a variety of applications including motor control, HVAC control, lighting, appliance, and industrial control.

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