Texas Instruments

UCC28517N  

Power Factor Correction ICs

UCC28517N Description

The UCC28517N is a power factor correction (PFC) controller IC designed for average current mode control applications. Manufactured by Texas Instruments, this device is part of the Power Management (PMIC) category and is housed in a through-hole 20DIP package. The UCC28517N operates with a switching frequency of 200kHz and is designed to work within a supply voltage range of 9.7V to 18V. This IC is ideal for applications requiring precise control of power factor correction, ensuring efficient power delivery and compliance with international standards.

UCC28517N Features

The UCC28517N offers several key features that make it a robust solution for power factor correction:

• Average Current Mode Control: This mode of operation ensures precise control of the inductor current, leading to improved line and load regulation. The average current mode control also simplifies the design of the feedback loop, making it easier to achieve stability and performance.
• Wide Supply Voltage Range: The UCC28517N can operate within a supply voltage range of 9.7V to 18V, making it suitable for a variety of power supply applications. This wide range ensures compatibility with different input sources and enhances the flexibility of the design.
• Low Startup Current: With a startup current of only 100 µA, the UCC28517N minimizes power consumption during startup, contributing to overall system efficiency and reliability.
• Through-Hole Mounting: The through-hole mounting type ensures robust mechanical stability and ease of integration into existing designs. This type of mounting is particularly beneficial for applications requiring high reliability and ease of assembly.
• Compliance and Standards: The UCC28517N is REACH unaffected and ROHS3 compliant, ensuring it meets the latest environmental and safety standards. This compliance is crucial for applications in regulated industries and for companies aiming to minimize environmental impact.
• Moisture Sensitivity Level (MSL) 1: The MSL rating of 1 indicates that the UCC28517N is not moisture sensitive, allowing for unlimited storage time without the need for special handling or packaging.

UCC28517N Applications

The UCC28517N is ideal for a range of applications where efficient power factor correction is required:

• Power Supplies: The UCC28517N is well-suited for use in AC-DC power supplies, particularly those requiring high power factor correction to meet regulatory standards. Its average current mode control ensures stable and efficient operation across a wide range of input voltages.
• Industrial Equipment: In industrial applications, the UCC28517N can be used to improve the power quality of equipment, reducing harmonic distortion and enhancing overall system efficiency. This is particularly important in environments where power quality is critical.
• Consumer Electronics: For consumer electronics, the UCC28517N provides a reliable and efficient solution for power factor correction, ensuring compliance with energy efficiency standards and improving the overall performance of the device.

Conclusion of UCC28517N

The UCC28517N from Texas Instruments is a versatile and reliable PFC controller IC that offers precise control of power factor correction. Its average current mode control, wide supply voltage range, and low startup current make it an ideal choice for a variety of power supply applications. The through-hole mounting type and compliance with environmental standards further enhance its suitability for diverse industrial and consumer applications. While the product is now obsolete, its legacy continues to influence the design of modern power management solutions.

UCC28517N Documents

Download datasheets and manufacturer documentation for UCC28517N