EL815(S1)(TD)

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Optoisolators are components used to provide galvanic isolation between input and output signals, usually in the form of electrical isolation of two circuits. The EL815(S1)(TD) optoisolator is a transistor-type, photovoltaic output (TVO) offering 5-30 kV photocoupler isolation and near-instantaneous connection of its phototransistor collector output.

Application Fields

The EL815(S1)(TD) is designed for use in the automotive and industrial sectors. It has a wide variety of applications in the automotive sector, including advanced communication gateways, CAN communications and HVAC controls. In the industrial sector, it can be used for power supply monitoring, industrial automation and safety/relay systems.

Working Principle

The EL815(S1)(TD) optoisolator works on the principle of galvanic isolation. A light-emitting diode (LED) is used to direct a beam of light onto the phototransistor collector, which is connected to an internal resistor. The phototransistor\'s base is connected to the anode of a control diode. When the LED is turned on, the collector-emitter current will flow, which in turn will forward-bias the base-emitter junction and turn on the phototransistor. This in turn provides an instant connection between the collector and emitter of the TVO and provides a low-power connection between the two circuits.

The EL815(S1)(TD) optoisolator has a blocking voltage of 5-30 kV and a non-blocking voltage of 10-60 kV. It also offers scalable resolution of up to 20 µs, short on-time activation and fast shut-off times. The EL815(S1)(TD) is compatible with a wide variety of insulating materials, including liquids, waxes, plastics and mineral oils, and is suitable for temperatures ranging from -40°C to +85°C.

Conclusion

The EL815(S1)(TD) optoisolator is an ideal choice for applications needing optimal isolation, low-power connections, fast switching speeds and wide temperature ranges. Its wide variety of applications lend it to use in automotive and industrial sectors, making it an ideal choice for applications needing reliable and efficient galvanic isolation.

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