Texas Instruments

UCC2817PW

UCC2817PW Description

The UCC2817PW is a Power Factor Correction (PFC) controller designed for high-efficiency power conversion applications. Manufactured by Texas Instruments, this IC operates in Average Current Mode, ensuring precise control and regulation of the input current to achieve high power factor and low total harmonic distortion (THD). The UCC2817PW is housed in a 16-TSSOP package, making it suitable for surface mount applications and providing a compact solution for space-constrained designs.

Key specifications of the UCC2817PW include a switching frequency range of 6kHz to 220kHz, allowing for flexibility in designing power supplies with varying output requirements. The supply voltage range of 12V to 17V ensures compatibility with a wide range of input power sources. The device also features a low startup current of 150 µA, which is beneficial for energy-efficient designs.

UCC2817PW Features

• Average Current Mode Control: Provides accurate control of the input current, ensuring high power factor and low THD, which is crucial for compliance with international power quality standards.
• Wide Switching Frequency Range: The 6kHz to 220kHz switching frequency range allows designers to optimize the power supply for size, efficiency, and performance.
• Low Startup Current: With a startup current of only 150 µA, the UCC2817PW minimizes power consumption during startup, contributing to energy-efficient designs.
• Surface Mount Compatibility: The 16-TSSOP package is ideal for surface mount technology (SMT), enabling automated assembly processes and enhancing reliability in high-volume production.
• Compliance and Safety: The UCC2817PW is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards for electronics manufacturing.
• Moisture Sensitivity Level: With an MSL rating of 2 (1 Year), the device is suitable for manufacturing environments with controlled humidity levels, reducing the risk of moisture-related defects.

UCC2817PW Applications

The UCC2817PW is ideal for a variety of power management applications, particularly where high power factor and efficiency are critical. Some specific use cases include:

• AC-DC Power Supplies: Suitable for offline power supplies in consumer electronics, industrial equipment, and telecommunications infrastructure.
• Server Power Modules: Provides efficient power conversion for server power modules, ensuring high reliability and performance.
• High-Power LED Lighting: Ideal for driving high-power LED arrays, where precise current control and high power factor are essential for energy efficiency and regulatory compliance.
• Motor Drives: Can be used in motor drive applications where accurate current control and high efficiency are required to meet energy efficiency standards.

Conclusion of UCC2817PW

The UCC2817PW from Texas Instruments is a versatile and efficient PFC controller that offers significant advantages in power management applications. Its average current mode control, wide switching frequency range, and low startup current make it an ideal choice for designers looking to achieve high power factor and low THD. The device's compliance with environmental and safety standards, along with its surface mount compatibility, ensures it meets the demands of modern electronics manufacturing. While the UCC2817PW is now obsolete, it remains a benchmark for power factor correction controllers, providing a reliable and efficient solution for various power conversion needs.