UCC28089DR

The UCC28089DR is a high-performance, integrated power factor correction (PFC) controller designed by Texas Instruments. It is primarily used in applications requiring efficient power conversion and regulation, such as in power supplies for computers, servers, and industrial equipment.

Key Features:

1. Architecture: The UCC28089DR employs a continuous conduction mode (CCM) control scheme, which enhances efficiency and reduces electromagnetic interference (EMI). It is designed to operate in a boost converter topology, making it suitable for applications that require step-up voltage conversion.

2. Input Voltage Range: The device supports a wide input voltage range, typically from 90V to 265V AC, allowing it to be used in various global power systems. This flexibility makes it ideal for universal input applications.

3. Output Voltage Regulation: The UCC28089DR provides precise output voltage regulation, ensuring that the output remains stable under varying load conditions. It features a feedback loop that adjusts the duty cycle to maintain the desired output voltage.

4. Power Factor Correction: One of the standout features of the UCC28089DR is its ability to achieve high power factor (PF) levels, often exceeding 0.9. This is crucial for meeting regulatory standards and improving energy efficiency.

5. Integrated Functions: The controller includes several integrated functions such as soft start, over-voltage protection (OVP), under-voltage lockout (UVLO), and thermal shutdown. These features enhance the reliability and safety of the power supply design.

6. Control Loop Compensation: The UCC28089DR allows for external compensation, enabling designers to tailor the control loop response to their specific application needs. This flexibility helps in optimizing transient response and stability.

7. Package and Pin Configuration: The UCC28089DR is housed in a compact 16-pin HTQFP (Thin Quad Flat Package), which facilitates easy integration into printed circuit boards (PCBs). The pin configuration is designed for straightforward connections to external components, simplifying the design process.

8. Efficiency: The controller is optimized for high efficiency, often achieving efficiencies greater than 95% under typical operating conditions. This efficiency is critical for reducing heat generation and improving overall system performance.

9. Application Areas: The UCC28089DR is suitable for a variety of applications, including:

   • AC-DC power supplies
   • LED drivers
   • Industrial power supplies
   • Renewable energy systems (like solar inverters)

Conclusion:

The UCC28089DR from Texas Instruments is a versatile and efficient PFC controller that meets the demands of modern power supply designs. Its combination of high efficiency, robust protection features, and flexible configuration options makes it an excellent choice for engineers looking to develop reliable and compliant power solutions.