TLP591B(C,F)

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Optoisolators are devices which provide electrical isolation between two separate circuits. This form of isolation is often used to prevent electric shock, as well as avoiding damage to other connected equipment. One of the most popular optoisolator types is the transistors with photovoltaic outputs. The TLP591B(C,F) is a widely used example of this type.

TLP591B(C,F) Application Field and Working Principle

The TLP591B(C,F) is a small, surface-mount optoisolator that functions as an optical switch. It consists of an LED or laser diode input unit and a photovoltaic output unit. The electrical isolation between the two units is achieved by the direct conversion of light into electricity, allowing for galvanic separation of the circuits. This type of device is particularly useful in applications where electrical safety is of paramount importance, such as medical or industrial systems.

The TLP591B(C,F) is designed to control loads of up to 60 watts and is suitable for voltage levels up to 35 VDC. It offers both open-collector and three-phase output types, and offers fast switching times – up to 500 kHz. It is also designed to be highly resistant to transient voltages, making it well-suited for harsh environments. Additionally, it has an optical power range of 2.2mA to 10mA, and an extended temperature range of -40°C to +105°C.

In operation, the photovoltaic output of the TLP591B(C,F) is triggered when light from the LED or laser diode is incident on the photovoltaic cell. The photovoltaic cell then produces an output voltage, which can be used to control a load or provide a signal to other components. The current flow from the photovoltaic cell is determined by the light intensity of the incident light, meaning that the output voltage or current can be precisely adjusted by varying the illumination intensity.

Overall, the TLP591B(C,F) is a reliable and versatile optoisolator and provides excellent performance for applications requiring a high degree of electrical safety. Its small size makes it well suited for use in space-constrained devices, while its extended temperature range ensures reliable operation even in the harshest of environments.

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