Texas Instruments

UC3853NG4  

Power Factor Correction ICs

UC3853NG4 Description

The UC3853NG4 is a high-performance Power Factor Correction (PFC) IC designed by Texas Instruments. This device is specifically engineered for applications requiring precise control and efficiency in power conversion systems. Operating within a temperature range of 0°C to 70°C, the UC3853NG4 is suitable for a variety of industrial and consumer electronics environments. It features an average current mode control, ensuring stable and efficient power delivery.

The UC3853NG4 is housed in a through-hole package, making it ideal for applications where robust mechanical stability is required. Its switching frequency ranges from 56kHz to 94kHz, allowing for flexible design choices and optimized performance in different power conversion scenarios. The supply voltage range of 12V to 40V provides compatibility with a wide array of power sources, enhancing its versatility.

This IC is REACH unaffected and RoHS3 compliant, ensuring it meets the highest environmental and safety standards. With a startup current of only 250 µA, the UC3853NG4 ensures minimal power consumption during the initial startup phase, contributing to overall energy efficiency.

UC3853NG4 Features

• Average Current Mode Control: Provides precise control over the average inductor current, ensuring stable and efficient power delivery.
• Wide Operating Temperature Range (0°C to 70°C): Ensures reliable operation in various environmental conditions.
• Flexible Switching Frequency (56kHz to 94kHz): Allows designers to optimize the switching frequency for specific applications, balancing efficiency and performance.
• Broad Supply Voltage Range (12V to 40V): Enhances compatibility with different power sources, making it suitable for a wide range of applications.
• Low Startup Current (250 µA): Minimizes power consumption during startup, contributing to overall energy efficiency.
• Through-Hole Mounting: Provides robust mechanical stability, ideal for applications requiring high reliability.
  -REACH Unaffected and RoHS3 Compliant: Ensures compliance with environmental and safety regulations, making it suitable for global markets.
• Packaged in a Tube: Facilitates easy handling and storage, reducing the risk of damage during transportation and assembly.

UC3853NG4 Applications

The UC3853NG4 is ideal for a variety of applications where high efficiency and precise power control are required. Some specific use cases include:

• AC-DC Power Supplies: Ideal for high-efficiency power supplies in consumer electronics, industrial equipment, and telecommunications infrastructure.
• Uninterruptible Power Supplies (UPS): Ensures stable power delivery during power outages, maintaining critical system operations.
• Solar Inverters: Enhances the efficiency of power conversion in solar energy systems, maximizing energy output.
• Motor Drives: Provides precise control over motor power, ensuring efficient operation and reduced energy consumption.
• Lighting Systems: Ensures stable power delivery to LED and other lighting systems, improving overall system efficiency and reliability.

Conclusion of UC3853NG4

The UC3853NG4 by Texas Instruments stands out as a versatile and high-performance PFC IC, offering a range of features that make it suitable for a variety of power conversion applications. Its average current mode control, wide operating temperature range, and flexible switching frequency provide designers with the flexibility needed to optimize their systems for efficiency and performance. The low startup current and compliance with environmental standards further enhance its appeal.

With its robust through-hole mounting and compatibility with a broad range of supply voltages, the UC3853NG4 is an ideal choice for applications requiring high reliability and efficiency. Whether used in AC-DC power supplies, UPS systems, solar inverters, motor drives, or lighting systems, the UC3853NG4 delivers reliable performance and precise power control, making it a valuable component in modern power electronics design.

UC3853NG4 Documents

Download datasheets and manufacturer documentation for UC3853NG4

PCN Assembly/Origin :

Mult Devices Assembly Site 10/Jun/2019      

Datasheets :

UC2853N Datasheet      

PCN Obsolescence/ EOL :

EOL 21/Sept/2023      

HTML Datasheet :

UC2853N Datasheet