Texas Instruments

UCC38503DW  

Power Factor Correction ICs

UCC38503DW Description

The UCC38503DW is a high-performance Power Factor Correction (PFC) controller designed for average current mode applications. Manufactured by Texas Instruments, this IC is part of the Power Management Integrated Circuits (PMIC) category, offering robust and efficient power conversion solutions. The UCC38503DW 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 of 100kHz, which ensures efficient power conversion while minimizing electromagnetic interference (EMI).

The UCC38503DW is designed for surface mount applications, providing a compact and reliable solution for space-constrained designs. It operates with a supply voltage range of 9.7V to 18V, making it versatile for various power supply configurations. The device is packaged in a tube, ensuring easy handling and integration into manufacturing processes. With a startup current of only 150 µA, the UCC38503DW is highly energy-efficient, contributing to reduced power consumption during startup phases.

UCC38503DW Features

• Operating Temperature Range: 0°C to 70°C, ensuring reliable performance across a broad temperature spectrum.
• Mode: Average Current Mode, which provides precise control over the inductor current, enhancing efficiency and stability.
• Switching Frequency: 100kHz, enabling high-frequency operation that reduces the size of passive components and improves power density.
• Supply Voltage Range: 9.7V to 18V, offering flexibility in power supply design and compatibility with various input voltage sources.
• Startup Current: 150 µA, ensuring minimal power draw during startup, which is crucial for energy-efficient designs.
• Compliance: REACH Unaffected and ROHS3 Compliant, ensuring environmental and regulatory compliance for global markets.
• Packaging: Tube packaging, facilitating easy handling and integration into automated assembly processes.
• Moisture Sensitivity Level: MSL 2 (1 Year), providing protection against moisture during storage and handling, reducing the risk of damage during the manufacturing process.

UCC38503DW Applications

The UCC38503DW is ideal for applications requiring efficient power factor correction and high power density. Its average current mode control and high switching frequency make it particularly suitable for:

• AC-DC Power Supplies: Enhancing the efficiency and power factor of power supplies in consumer electronics, industrial equipment, and telecommunications infrastructure.
• Uninterruptible Power Supplies (UPS): Providing stable and efficient power conversion for backup power systems.
• Solar Inverters: Improving the power quality and efficiency of solar energy conversion systems.
• Motor Drives: Ensuring precise control and high efficiency in motor control applications, contributing to energy savings and reduced operational costs.

Conclusion of UCC38503DW

The UCC38503DW from Texas Instruments stands out as a versatile and efficient PFC controller, offering significant advantages over similar models. Its wide operating temperature range, high switching frequency, and low startup current make it an ideal choice for a variety of power management applications. The device's compliance with environmental and regulatory standards ensures its suitability for global markets. With its robust performance and energy-efficient design, the UCC38503DW is a reliable solution for engineers and designers looking to enhance the efficiency and reliability of their power conversion systems.

UCC38503DW Documents

Download datasheets and manufacturer documentation for UCC38503DW

Datasheets :

UCC28500-03, UCC38500-03      

PCN Obsolescence/ EOL :

EOL 21/Sept/2023      

HTML Datasheet :

UCC28500-03, UCC38500-03