UCC2808D-2G4

The UCC2808D-2G4 is a high-performance integrated circuit (IC) designed by Texas Instruments, primarily used for power management applications, particularly in the realm of power factor correction (PFC) and DC-DC converters. This device is part of the UCC2808 family, which is known for its efficiency and versatility in handling various power supply designs.

Key Features:

1. Functionality: The UCC2808D-2G4 is a continuous conduction mode (CCM) PFC controller. It is designed to improve the power factor of AC-DC converters, ensuring that the input current waveform is sinusoidal and in phase with the input voltage, which is crucial for meeting regulatory standards and improving energy efficiency.

2. Voltage Range: The IC operates over a wide input voltage range, typically from 85V to 265V AC, making it suitable for universal input applications.

3. Control Method: It employs a peak current control method, which allows for precise control of the output voltage and current, enhancing the overall performance of the power supply.

4. Integrated Functions: The UCC2808D-2G4 includes several integrated features such as:

   • Soft-start functionality to prevent inrush current during startup.
   • Over-voltage protection (OVP) to safeguard the circuit from voltage spikes.
   • Under-voltage lockout (UVLO) to ensure the device operates only within a specified voltage range.
   • Thermal shutdown to protect the IC from overheating.

5. Package Type: The device is available in a compact 16-pin TSSOP (Thin Shrink Small Outline Package) form factor, which is suitable for space-constrained applications.

6. Efficiency: The UCC2808D-2G4 is designed to achieve high efficiency, often exceeding 90%, which is critical for reducing energy losses and improving thermal performance in power supply designs.

7. Application Areas: This IC is commonly used in various applications, including:

   • LED drivers
   • Industrial power supplies
   • Consumer electronics
   • Renewable energy systems (like solar inverters)

8. Performance Characteristics: The UCC2808D-2G4 features a high switching frequency capability, which allows for smaller passive components and a more compact design. It also has a wide range of compensation options to optimize performance for different load conditions.

Conclusion:

The UCC2808D-2G4 from Texas Instruments is a robust and efficient solution for power factor correction and DC-DC conversion applications. Its combination of integrated protection features, high efficiency, and versatility makes it a popular choice among engineers designing modern power supply systems. Whether for industrial, consumer, or renewable energy applications, the UCC2808D-2G4 provides the necessary performance and reliability to meet demanding power management requirements.