LTV-355T-C

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Optoisolators, also known as optically coupled isolators, provide electrical isolation between two components of an electrical circuit. The LTV-355T-C is an optoisolator that features a transistor photovoltaic output. This allows it toserve as an interface between the low power control signals of a microcontroller-based system and the higher power switching circuitry of its output devices. A selection of appropriate parts along with a thorough understanding of the device\'s working will ensure successful application of the LTV-355T-C.

The LTV-355T-C is a slotted optical isolator with a photovoltaic output transistor. It is housed in an epoxy-coated, black plastic package with a 2.3 mm wide slot. The optical part of the device is ideal for applications that require LEDs to either provide or detect a signal. It employs a high-efficiency, double heterostructure photovoltaic transistor to transfer the optical signal from the LED side to the transistor side. The other side of the device features an NPN power transistor with several lines used for connection.

Given its simple, effective design, the LTV-355T-C is suitable for both commercial and industrial applications. The device can be used to drive photovoltaic relays and small motors, turning them on or off based on the strength of the optical signal. It can also be used in switching applications such as traffic lights and security systems. Additionally, the robust design of the device makes it well suited for integration in harsh industrial environments. Because of its versatile nature, the LTV-355T-C is also often used in measuring and control systems.

As its name implies, the transistor photovoltaic output of the LTV-355T-C works on a photovoltaic principle. The device converts the optical signal into an electrical current, which is then used to activate the output device. The current flowing through the device can be adjusted via the value of a resistor connected between the base and the base current supply line. The device’s photovoltaic output is normally kept in the off-state while the output transistor is triggered when a high-intensity optical signal is supplied. This will activate the transistor and drive it to a saturated state.

To ensure proper operation of the LTV-355T-C, the device should be protected from static electricity and excessive current overloads. The device should also be tested after installation and the LED should be properly current limited. As a single component device, the LTV-355T-C offers designers the flexibility and reliability they need, making it an excellent choice for applications requiring electrical isolation.

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