LTV-355T

The LTV-355T from Lite-On is a compact, high-performance optocoupler designed for various applications requiring electrical isolation between input and output circuits. This device features a phototransistor output, which allows it to effectively transmit signals while maintaining a high degree of isolation, making it ideal for use in environments where electrical noise and interference are concerns.

Key Features:

1. Isolation Voltage: The LTV-355T offers a high isolation voltage, typically around 5,000 Vrms, ensuring that the input and output circuits are electrically isolated from each other. This is crucial for protecting sensitive components from voltage spikes and surges.

2. Input Configuration: The input side of the LTV-355T consists of an infrared LED that emits light when current flows through it. This LED is housed in a plastic package that is designed to minimize light leakage and enhance performance.

3. Output Configuration: The output side features a phototransistor that is sensitive to the infrared light emitted by the LED. When the LED is activated, the phototransistor conducts, allowing current to flow through the output circuit. This configuration enables the optocoupler to effectively transmit digital signals.

4. Package Type: The LTV-355T is typically available in a compact DIP-4 (Dual In-line Package) form factor, which makes it easy to integrate into various circuit designs. The small size is advantageous for space-constrained applications.

5. Operating Temperature Range: The device is designed to operate within a wide temperature range, typically from -40°C to +100°C, making it suitable for use in diverse environments, including industrial and automotive applications.

6. High Speed: The LTV-355T is capable of high-speed operation, with a typical rise time and fall time in the microsecond range, allowing it to handle fast switching applications effectively.

7. Applications: Common applications for the LTV-355T include signal isolation in data communication systems, power supply feedback circuits, and interfacing between different voltage levels in electronic devices. It is also used in microcontroller interfacing, where isolation is necessary to protect the microcontroller from high voltages.

8. Electrical Characteristics: The device typically features a forward current of around 10-20 mA for the LED, with a collector-emitter voltage rating of up to 30V for the phototransistor, ensuring compatibility with a wide range of circuit designs.

In summary, the LTV-355T from Lite-On is a versatile optocoupler that combines high isolation, compact design, and reliable performance, making it an excellent choice for engineers looking to enhance the safety and reliability of their electronic systems.