Texas Instruments

UC28025DW  

DC DC Switching Controllers

UC28025DW Description

The UC28025DW is a highly versatile and efficient DC-DC switching controller designed by Texas Instruments. It is specifically engineered to provide robust control and regulation for power conversion applications. This device is a transistor driver with a positive output configuration, making it ideal for driving external transistors in a wide range of power supply designs. The UC28025DW operates within a supply voltage range of 9V to 30V, ensuring compatibility with various power sources. It features a switching frequency range of 340kHz to 460kHz, which allows for optimized performance in different operating conditions.

UC28025DW Features

The UC28025DW offers a comprehensive set of control features that enhance its performance and reliability. Key features include current limit, enable, frequency control, ramp, and soft start functionalities. These features ensure precise control over the power conversion process, minimizing transient effects and improving overall system stability. The device also supports synchronous rectification, which significantly improves efficiency by reducing power losses during the rectification process.

The UC28025DW is designed with two output phases, each capable of delivering a maximum duty cycle of 45%. This dual-phase configuration enhances the device's ability to handle higher power levels while maintaining excellent thermal performance. The device is packaged in a surface-mount 16SOIC package, which is ideal for compact and high-density PCB designs. Additionally, the UC28025DW is REACH unaffected and RoHS3 compliant, ensuring it meets the highest environmental and safety standards.

UC28025DW Applications

The UC28025DW is well-suited for a variety of applications where high efficiency and precise control are paramount. It is particularly ideal for use in isolated DC-DC converters, where its dual-phase output and synchronous rectification capabilities can significantly enhance performance. The device is also suitable for power factor correction (PFC) circuits, where its frequency control and current limit features can help maintain stable and efficient power delivery.

In addition to these applications, the UC28025DW can be used in high-voltage power supplies, motor drives, and other industrial applications where reliable power conversion is essential. Its wide supply voltage range and robust control features make it a versatile choice for designers looking to optimize power efficiency and system reliability.

Conclusion of UC28025DW

The UC28025DW from Texas Instruments stands out as a highly capable DC-DC switching controller, offering a unique combination of features and performance benefits. Its dual-phase output, synchronous rectification, and comprehensive control features make it an excellent choice for a wide range of power conversion applications. With its robust design, environmental compliance, and versatile packaging, the UC28025DW is well-positioned to meet the demands of modern power supply designs. Whether used in isolated DC-DC converters, PFC circuits, or other high-voltage applications, the UC28025DW delivers reliable performance and efficiency, making it a valuable addition to any electronics designer's toolkit.

UC28025DW Documents

Download datasheets and manufacturer documentation for UC28025DW

Datasheets :

UC28023/25      

HTML Datasheet :

UC28023/25