Texas Instruments

UCC3818D  

Power Factor Correction ICs

UCC3818D Description

The UCC3818D is a high-performance Power Factor Correction (PFC) controller designed for average current mode control, manufactured by Texas Instruments. This IC operates within a temperature range of 0°C to 70°C, making it suitable for a wide range of industrial and consumer applications. It features a switching frequency range of 6kHz to 220kHz, allowing for efficient power conversion and reduced electromagnetic interference (EMI). The UCC3818D is designed to operate with a supply voltage between 12V and 17V, ensuring compatibility with various power supply systems.

UCC3818D Features

• Average Current Mode Control: The UCC3818D employs average current mode control, which provides excellent line and load transient response, ensuring stable and reliable power delivery.
• Wide Operating Frequency Range: With a switching frequency range of 6kHz to 220kHz, the UCC3818D offers flexibility in design, enabling optimization for efficiency and size.
• Low Startup Current: The IC has a low startup current of 150 µA, which minimizes power consumption during startup and enhances overall system efficiency.
• Surface Mount Technology (SMT): The UCC3818D is available in a surface mount package, making it ideal for compact and high-density PCB designs.
• Compliance and Safety: The UCC3818D is REACH unaffected and RoHS3 compliant, ensuring it meets the latest environmental and safety standards.
• Moisture Sensitivity Level (MSL): With an MSL of 1 (Unlimited), the UCC3818D is suitable for use in environments with varying humidity levels without the need for special handling.

UCC3818D Applications

The UCC3818D is ideal for a variety of applications where high efficiency and reliable power factor correction are required. Specific use cases include:

• Power Supplies: Ideal for AC-DC power supplies in consumer electronics, industrial equipment, and telecommunications infrastructure.
• Uninterruptible Power Supplies (UPS): Enhances the power quality and efficiency of UPS systems, ensuring reliable backup power.
• Motor Drives: Provides efficient power conversion for motor drives in various industrial applications.
• Lighting Systems: Suitable for high-intensity discharge (HID) lighting systems, ensuring stable power delivery and improved lighting performance.

Conclusion of UCC3818D

The UCC3818D from Texas Instruments is a versatile and efficient PFC controller that offers significant advantages over similar models. Its average current mode control, wide operating frequency range, and low startup current make it an excellent choice for applications requiring high efficiency and reliable power delivery. The UCC3818D's compliance with environmental and safety standards, along with its surface mount packaging, ensures it is suitable for modern, compact designs. Whether used in power supplies, motor drives, or lighting systems, the UCC3818D provides a robust and efficient solution for power management needs.

UCC3818D Documents

Download datasheets and manufacturer documentation for UCC3818D

Datasheets :

UCC2817/18, UCC3817/18      

PCN Obsolescence/ EOL :

EOL 21/Sept/2023      

PCN Design/Specification :

Mult Devices Font 21/Apr/2018