HCPL-0454-000E

The HCPL-0454-000E is an optoisolator-transistor type photovoltaic output device used to interface electronic systems, such as computer peripherals, to other parts of a circuit. This optoisolator-transistor type device employs an LED input which triggers the output transistor, protecting the system from overvoltages, inductive and capacitive load spikes.

The HCPL-0454-000E offers superior common mode transient immunity (CMTI) of up to 40 kilovolts/microsecond. It provides high isolation voltage of up to 5000 volts, maximum output sourcing and sinking current of 16.0mA and 6.0mA and maximum power dissipation of 120 mW. The device is compliant with UL1577 and IC safety standards.

This optoisolator-transistor type photovoltaic output works by converting electrical energy into light. The LED input is activated by a logic pulse, analog signal or other input, and then converts the electrical energy into light. This light is then directed through an optical barrier to the output transistor. The light causes a photovoltaic effect in a layer of semiconductor silicon on the surface of the output collector, which causes current from the supply line to be drawn off. The current is then transferred across the gap between the collector and the emitter of the output transistor.

The HCPL-0454-000E optoisolator-transistor type photovoltaic output is ideal for applications which require true galvanic isolation between systems. Such applications include medical systems, factory automation, electronic point of sale and industrial measurement and control. The device is also widely used in vehicles, for controlling systems such as airbags or anti-lock braking. It also provides isolation between signal and power lines and can help reduce EMI/RFI noise.

In summary, the HCPL-0454-000E optoisolator-transistor type photovoltaic output device offers superior common mode transient immunity, high isolation voltage, maximum output sourcing and sinking current and maximum power dissipation while employing an LED input which triggers the output transistor. It is ideal for applications which require true galvanic isolation between systems such as medical systems, factory automation, electronic point of sale and industrial measurement and control.