LTV-827S

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Optoisolators rely upon an optical interface to provide an electrical isolation between two circuits. The LTV-827S optoisolator uses a photovoltaic output to switch a low-power FET transistor. Understanding the application field and working principle of this optoisolator can help determine whether its performance is suitable for a specific application.

The LTV-827S optoisolator is designed for use in systems where bi-directional current flow is required, but must remain isolated. It can be used in process control, remote control, audio systems, and automotive applications. The optoisolator works by switching the transistor when an optically-triggered voltage reaches the gate. The optoisolator has two main parts, the light-emitting diode (LED) and the phototransistor, which are both separated by an electrical isolation barrier.

The optical interface between the LED and the phototransistor consists of two wires. The wire connecting the LED transmits visible light which is then converted to a voltage by the phototransistor. When the LED is powered, it emits light into the second wire, which then activates the phototransistor, creating a high electrical current that is capable of activating the FET. The FET, in turn, supplies power to the output circuit.

The LTV-827S optoisolator provides isolation of up to 8 kilovolts AC. It is rated for a minimum load of 0.8 mA, and a maximum of 10 mA. It requires a minimum input current of 600 μA, and a maximum of 350 mA. The LED is rated for a forward current of 20 mA, and it has a maximum forward voltage drop of 1.2 V. The LED is also rated for an operating temperature range of -40°C to +125°C.

When the LED is triggered, the light energy strikes the phototransistor, causing it to conduct electricity and activate the FET. This enables the phototransistor to vary the output voltage by changing its forward bias voltage within a certain range. When the input current drops below 600 μA, the FET turns off, and the output voltage is set to its minimum value. The optoisolator also features a protection diode, which provides reverse current protection.

The LTV-827S optoisolator is a highly reliable device suitable for a wide variety of applications. Its low power consumption, high isolation, and reliable operation make it an ideal choice for applications where an electrical isolation must be maintained. Its low current requirements, and wide operating temperature range also make it suitable for use in a variety of environments. Its robust construction ensures that it will withstand the rigors of everyday use.

The specific data is subject to PDF, and the above content is for reference