The UCC3817N is a sophisticated, biCMOS power factor correction (PFC) pre-regulator controller designed by Texas Instruments, a leader in semiconductor solutions. This innovative component is engineered to enhance power efficiency and reduce harmonic distortion in AC to DC power conversion applications. With its advanced features, the UCC3817N is an ideal choice for systems requiring compliance with international power quality standards such as the IEC61000-3-2.

Key Features

• High Performance: The UCC3817N integrates a range of features to ensure high-performance power management, including average current mode control for precise power factor correction and low total harmonic distortion (THD).
• Wide Operating Range: The device operates over a wide input voltage range, making it suitable for a variety of applications across different power levels.
• Enhanced Stability: It employs a voltage amplifier and a multiplier for accurate voltage and current sensing, which contribute to the stability of the PFC stage.
• Flexible Application: The UCC3817N is designed to be used in both isolated and non-isolated power supplies, providing designers with the flexibility to incorporate it into a broad array of power systems.

Applications

The UCC3817N is versatile and can be used in multiple applications where power factor correction is required. These include:

• AC-DC power supplies for personal computers
• Flat-screen TVs and monitors
• Industrial power systems
• Power supplies for servers and telecom equipment

Technical Specifications

With a focus on technical precision, the UCC3817N offers the following specifications:

• Supply Voltage Range: 10.8V to 18V
• Operating Frequency: Up to 500kHz
• Package Type: PDIP-16
• Operating Temperature Range: -40°C to +85°C

Conclusion

The UCC3817N from Texas Instruments is a powerful solution for advanced power factor correction. Its combination of efficiency, stability, and flexibility makes it an excellent choice for designers looking to improve power quality and comply with global standards. Whether it's for consumer electronics or industrial power systems, the UCC3817N is a reliable and effective component for your power management needs.