PS2805C-1-V-F3-A

The PS2805C-1-V-F3-A is an optocoupler manufactured by Intersil, designed for applications requiring electrical isolation between input and output circuits. This component is part of the PS2805 series, which is known for its high-speed performance and reliability in various electronic applications.

Key Features:

1. Isolation Voltage: The PS2805C-1-V-F3-A offers a high isolation voltage, typically around 5000 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 noise.

2. Input Configuration: The device features a gallium arsenide (GaAs) infrared LED as the input element. This LED emits infrared light when current flows through it, which is then detected by the output phototransistor.

3. Output Configuration: The output consists of a phototransistor that is sensitive to the infrared light emitted by the input LED. The phototransistor can switch on and off in response to the input signal, allowing for signal transmission across the isolation barrier.

4. High-Speed Operation: The PS2805C-1-V-F3-A is capable of high-speed switching, with a typical rise time of around 15 µs and a fall time of approximately 10 µs. This makes it suitable for high-frequency applications.

5. Low Input Current: The device is designed to operate with a low input current, typically around 10 mA, which helps in reducing power consumption and allows for interfacing with low-power control circuits.

6. Compact Package: The PS2805C-1-V-F3-A is housed in a compact 4-pin DIP (Dual In-line Package) form factor, making it easy to integrate into various circuit designs. The small size is advantageous for space-constrained applications.

7. Temperature Range: The operating temperature range for this optocoupler is typically from -40°C to +100°C, making it suitable for use in a wide variety of environments, including industrial applications.

8. Applications: Common applications for the PS2805C-1-V-F3-A include signal isolation in data communication, switching power supplies, and microcontroller interfacing, where it is essential to maintain electrical isolation between different parts of a system.

Electrical Characteristics:

• Input Forward Voltage (Vf): Typically around 1.2V at 10 mA.
• Collector-Emitter Voltage (Vce): Maximum rating of 80V.
• Current Transfer Ratio (CTR): Typically ranges from 50% to 600%, depending on the specific conditions and configurations.

Conclusion:

The PS2805C-1-V-F3-A from Intersil is a versatile optocoupler that provides reliable electrical isolation and high-speed performance, making it an excellent choice for a variety of electronic applications. Its compact design, low input current requirements, and robust isolation capabilities make it a popular choice among engineers and designers in the field of electronics.