LTV-814H

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The LTV-814H phototransistor is an optoisolator designed for applications that require electrical isolation between input and output signals. It provides complete electrical and optical isolation by using an LED optically coupled with a phototransistor. This optoisolator is well suited for power control and photocoupled logic interfaces due to its low operating power requirements, high speed switching, and low leakage current.

The LTV-814H is a transistor-based optoisolator with photovoltaic output. It consists of a gallium arsenic (GaAs) infrared LED light source and a phototransistor with a built-in IR filter. The optoisolator maintains full isolation of the input and output circuits and provides a means for controlling a small load with a low voltage signal. This device has low power consumption, allowing it to be used with battery operated devices, and is also capable of driving MOSFETS and SCRs.

The operation of the LTV-814H optoisolator is based on the photovoltaic effect. When a current is applied to the LED, the light emitted by the LED causes the phototransistor to create a voltage across its terminals. This voltage is proportional to the intensity of the light and can be used to control the output circuit. The optoisolator provides electrical isolation of the input and output circuits, allowing signals to be transmitted electrically without the need for a direct connection.

The LTV-814H is used in a variety of applications including AC power control, photocoupled logic interfaces, and industrial automation. It is often used in power supply designs to isolate a high voltage source from a low voltage source, such as a microcontroller. The LTV-814H is also used to control the speed of motor drives, to signal fault conditions, and to create optically isolated analog signals. Additionally, the optoisolator is used to implement signal conditioning, noise suppression, and signal conversions.

The LTV-814H can also be used in a number of other applications such as LED and LCD dimming, current sensing, and threshold detection. This optoisolator is also well-suited for use in medical and healthcare applications due to its low power consumption, high speed switching, and low leakage current.

The LTV-814H optoisolator is a reliable and highly versatile device that can be used in a variety of applications. It provides complete electrical and optical isolation, low operating power requirements, high speed switching, and low leakage current. The device is suitable for driving MOSFETS and SCRs, and is often used in power supply designs, motor drive applications, and signal conditioning.

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