LTV-847

The LTV-847 is an optocoupler, also known as an opto-isolator, manufactured by Lite-On. It is designed to provide electrical isolation between its input and output, making it ideal for applications where signal integrity and safety are paramount.

Key Features:

1. Isolation Voltage: The LTV-847 typically offers a high isolation voltage, often around 5,000 Vrms, which ensures that the input and output circuits are electrically isolated from each other. This is crucial for protecting sensitive components from high voltages.

2. Input Configuration: The device features a gallium arsenide (GaAs) infrared LED as its input. This LED emits infrared light when current flows through it, which is the primary mechanism for signal transmission in the optocoupler.

3. Output Configuration: The output consists of 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.

4. Transfer Characteristics: The LTV-847 is designed to provide a linear transfer characteristic, which means that the output current is proportional to the input current. This feature is essential for applications requiring precise signal transmission.

5. Package Type: The LTV-847 is typically housed in a compact 4-pin DIP (Dual In-line Package) or surface-mount package, making it suitable for space-constrained applications. The small form factor allows for easy integration into various electronic circuits.

6. Operating Temperature Range: The device is designed to operate over a wide temperature range, often from -40°C to +85°C, making it suitable for industrial and automotive applications.

7. Applications: The LTV-847 is commonly used in various applications, including:

   • Signal isolation in communication systems
   • Switching power supplies
   • Microcontroller interfacing
   • Data acquisition systems
   • Motor control circuits

8. Electrical Characteristics: The device typically has a low input current requirement, allowing it to be driven by low-power control signals. The output can handle moderate current levels, making it versatile for different load conditions.

Summary:

The LTV-847 from Lite-On is a reliable and efficient optocoupler that provides electrical isolation and signal integrity for a wide range of electronic applications. Its compact design, high isolation voltage, and linear transfer characteristics make it a popular choice among engineers and designers looking to enhance the safety and performance of their circuits.