Texas Instruments

UC3854BNG4  

Power Factor Correction ICs

UC3854BNG4 Description

The UC3854BNG4 is a high-performance Power Factor Correction (PFC) controller designed for demanding power management applications. Manufactured by Texas Instruments, this IC operates within a temperature range of 0°C to 70°C, ensuring reliable performance in various environmental conditions. It features an average current mode control scheme, which provides precise regulation and improved transient response. The UC3854BNG4 is housed in a through-hole package, making it suitable for applications requiring robust mechanical stability and ease of integration.

This controller is designed to operate with a supply voltage range of 10V to 20V and a switching frequency of 200kHz, enabling efficient power conversion and reduced component size. The low startup current of 250 µA ensures minimal power consumption during initial operation, contributing to overall system efficiency. The UC3854BNG4 is REACH unaffected and RoHS3 compliant, adhering to stringent environmental and safety standards. With an ECCN classification of EAR99 and HTSUS code 8542.39.0001, it is well-suited for international markets.

UC3854BNG4 Features

• Average Current Mode Control: Provides precise regulation and improved transient response, ensuring stable operation under varying load conditions.
• Wide Operating Voltage Range: 10V to 20V supply voltage range offers flexibility and compatibility with a variety of power sources.
• High Switching Frequency: 200kHz switching frequency enables the use of smaller inductors and capacitors, reducing overall system size and cost.
• Low Startup Current: 250 µA startup current minimizes power consumption during initial operation, enhancing system efficiency.
• Robust Through-Hole Packaging: Ensures mechanical stability and ease of integration into various power management systems.
• Compliance and Safety: REACH unaffected and RoHS3 compliant, ensuring adherence to environmental and safety standards.
• Wide Operating Temperature Range: 0°C to 70°C operating temperature range allows for reliable performance in diverse environments.

UC3854BNG4 Applications

The UC3854BNG4 is ideal for a range of power management applications, particularly those requiring high efficiency and precise regulation. Key applications include:

• Power Supplies: Ideal for AC-DC power supplies in consumer electronics, industrial equipment, and telecommunications infrastructure.
• Uninterruptible Power Supplies (UPS): Provides reliable power factor correction and regulation, ensuring stable power delivery during critical operations.
• Motor Drives: Enhances the efficiency and performance of motor drives in various industrial applications.
• Renewable Energy Systems: Suitable for power conversion in solar inverters and other renewable energy systems, contributing to overall system efficiency and reliability.

Conclusion of UC3854BNG4

The UC3854BNG4 is a versatile and high-performance PFC controller that offers significant advantages over similar models. Its average current mode control, wide operating voltage range, and high switching frequency make it an ideal choice for applications requiring precise regulation and efficient power conversion. The robust through-hole packaging and compliance with environmental and safety standards further enhance its appeal. Whether used in power supplies, UPS systems, motor drives, or renewable energy applications, the UC3854BNG4 delivers reliable performance and efficiency, making it a valuable component in modern power management systems.

UC3854BNG4 Documents

Download datasheets and manufacturer documentation for UC3854BNG4

PCN Assembly/Origin :

Mult Devices 16/Apr/2018      

Datasheets :

UC3854BN Datasheet      

PCN Obsolescence/ EOL :

EOL 21/Sept/2023