Texas Instruments

UCC38501N

UCC38501N Description

The UCC38501N from Texas Instruments is a high-performance Average Current Mode Power Factor Correction (PFC) controller designed for AC/DC power supplies. Operating within a 9.7V to 18V supply range and supporting a switching frequency of 100kHz, this IC ensures efficient power conversion with minimal harmonic distortion. Packaged in a 20-pin DIP (Through Hole), it is optimized for last-time-buy procurement, making it ideal for legacy or long-lifecycle designs. The device complies with ROHS3 and REACH environmental standards, ensuring reliability in industrial and commercial applications.

UCC38501N Features

• Average Current Mode Control: Delivers precise current regulation for improved power factor correction (PFC) performance.
• Low Startup Current (150µA): Reduces power consumption during initialization, enhancing energy efficiency.
• Wide Operating Voltage (9.7V–18V): Supports flexible power supply configurations.
• 100kHz Switching Frequency: Balances efficiency and component size, suitable for compact designs.
• Through-Hole (DIP) Packaging: Facilitates easy integration in prototyping and industrial systems.
• RoHS3 Compliant & REACH Unaffected: Meets stringent environmental and safety standards.
• Last-Time-Buy Status: Recommended for legacy systems requiring long-term availability.

UCC38501N Applications

The UCC38501N excels in power supply designs requiring high power factor and low harmonic distortion, including:

• Industrial Power Supplies: Ensures compliance with IEC 61000-3-2 standards for harmonic emissions.
• Server & Telecom PSUs: Enhances efficiency in AC/DC front-end converters.
• LED Drivers: Improves power quality in high-brightness lighting systems.
• Consumer Electronics: Ideal for appliances needing PFC for regulatory compliance.

Conclusion of UCC38501N

The UCC38501N stands out for its robust PFC control, low startup current, and wide voltage range, making it a reliable choice for engineers designing power supplies with stringent efficiency requirements. Its through-hole package and last-time-buy status cater to legacy systems, while its compliance with RoHS3 and REACH ensures future-proofing for environmental regulations. For applications demanding high power factor correction with minimal distortion, this IC delivers proven performance and design flexibility.