EL814S(A)(TB)-V

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, also known as optocouplers, are electronic components that efficiently electrically isolate two circuits. Transistor Photovoltaic Output (TPO) optoisolators, such as the EL814S(A)(TB)-V, are used when the input device being isolated is a low current bipolar transistor, such as a low voltage LED or a Darlington transistor. They are also used in current-mirroring, to maintain a constant current for powering LED applications.

The EL814S(A)(TB)-V optoisolator consists of a photovoltaic diode and a NPN transistor output, housed in a 4-pin DIP. In its most basic form, a photovoltaic diode absorbs short-wavelength infrared light and converts it into electrical energy. This is the optoisolator’s input, and is isolated from the output by a high-resistance gap. A light-emitting diode, usually on the same chip, is used to supply the energy to the input. In this way, current can flow from the input to the output without voltage being applied to the gap.

The output of the EL814S(A)(TB)-V optoisolator consists of a NPN transistor, usually with a resistor connected in series to its base. When the photovoltaic cell absorbs light, the transistor is turned on, allowing current to flow from the collector to the emitter. The current at the output is determined by the intensity of light received by the photovoltaic cell. The optoisolator’s current gain is typically rated in the range of 200 to 500, meaning that a 0.1mA input current can result in a 20mA to 60mA output current.

The EL814S(A)(TB)-V optoisolator has a number of applications in industrial, automotive and medical systems. In industrial systems, it can be used to trigger an alarm circuit when a low voltage output is detected, such as in low-voltage over-current protection or low-voltage contact closure. In automotive systems, it is commonly used to ensure low voltage battery operation. In medical systems, it can be used as a low-voltage power source for medical equipment such as hearing aids, insulin pumps and artificial pacemakers.

In summary, the EL814S(A)(TB)-V optoisolator is a highly efficient and robust component that can be used to isolate two circuits. It consists of a photovoltaic diode and a NPN transistor output, and is used in applications where a low voltage bipolar transistor input is necessary. The optoisolator has a number of applications in industrial, automotive and medical systems. As such, it is an important component for engineers and designers who need to interface circuit blocks in applications requiring reliable electrical isolation.

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