Texas Instruments

UCC28521DW

UCC28521DW Description

The UCC28521DW 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 Circuit (PMIC) category, specifically tailored for efficient power conversion and control. The UCC28521DW operates at a switching frequency of 200kHz, ensuring high efficiency and reduced component size in power supply designs. It features a supply voltage range of 9.7V to 18V, making it suitable for a wide range of input voltage conditions.

The UCC28521DW is housed in a20SOIC package, which is ideal for surface mount applications, providing robustness and ease of integration into modern PCB designs. The device has a startup current of only 100 µA, which is crucial for minimizing power consumption during the initial power-up phase. Additionally, the UCC28521DW is REACH unaffected and RoHS3 compliant, ensuring environmental sustainability and regulatory compliance for global markets.

UCC28521DW Features

• Average Current Mode Control: The UCC28521DW employs average current mode control, which offers superior line and load transient response compared to peak current mode control. This feature ensures stable and precise control of the output current, enhancing overall system reliability.
• Wide Supply Voltage Range: With a supply voltage range of 9.7V to 18V, the UCC28521DW can accommodate a variety of input voltage conditions, making it versatile for different power supply applications.
• High Switching Frequency: Operating at 200kHz, the UCC28521DW allows for the use of smaller inductors and capacitors, reducing the overall size and cost of the power supply while maintaining high efficiency.
• Low Startup Current: The device requires only 100 µA for startup, which significantly reduces power consumption during the initial power-up phase, making it ideal for energy-efficient designs.
• Surface Mount Packaging: The 20SOIC package is designed for surface mount technology (SMT), providing robustness and ease of integration into modern PCB designs.
• Regulatory Compliance: The UCC28521DW is REACH unaffected and RoHS3 compliant, ensuring that it meets the highest environmental and regulatory standards for global markets.
• Moisture Sensitivity Level (MSL) 1: The device has an MSL rating of 1, indicating unlimited exposure to moisture, which is beneficial for manufacturing processes and long-term reliability.

UCC28521DW Applications

The UCC28521DW is ideal for a variety of applications where high efficiency and precise power control are required. Some specific use cases include:

• Telecommunications Equipment: The UCC28521DW is well-suited for powering telecommunication systems, where high efficiency and reliable power conversion are critical.
• Industrial Power Supplies: In industrial applications, the UCC28521DW can provide stable and efficient power conversion, ensuring consistent performance under varying load conditions.
• Server Power Supplies: Data centers and server farms can benefit from the UCC28521DW's high efficiency and low startup current, contributing to energy savings and reduced operational costs.
• Consumer Electronics: The device can be used in consumer electronics such as TVs, monitors, and gaming consoles, where compact and efficient power supplies are essential.

Conclusion of UCC28521DW

The UCC28521DW from Texas Instruments is a highly efficient and versatile PFC controller designed for average current mode applications. Its wide supply voltage range, high switching frequency, and low startup current make it an excellent choice for a variety of power supply applications. The device's surface mount packaging, regulatory compliance, and moisture sensitivity level further enhance its suitability for modern electronics manufacturing. Whether used in telecommunications, industrial power supplies, or consumer electronics, the UCC28521DW offers reliable performance and significant energy savings, making it a standout choice in the PMIC category.