Texas Instruments

UCC2809DTR-2  

AC DC Converters, Offline Switches

UCC2809DTR-2 Description

The UCC2809DTR-2 is a highly versatile and efficient offline switcher controller designed for a variety of power management applications. Manufactured by Texas Instruments, this device is part of the Power Management Integrated Circuits (PMIC) category and is known for its robust performance and reliability. The UCC2809DTR-2 is available in an 8SOIC package and is suitable for surface mount applications, making it ideal for compact and high-density designs.

UCC2809DTR-2 Features

• Topology Versatility: The UCC2809DTR-2 supports multiple topologies including Boost, Flyback, and Forward, providing flexibility in design and application. This versatility allows engineers to select the most appropriate topology for their specific power conversion needs.
• Frequency Control and Soft Start: The device offers frequency control and soft start features, which help in minimizing inrush currents and ensuring a smooth startup process. This is particularly beneficial in applications where sudden power surges can be detrimental.
• High Switching Frequency: With a switching frequency of 1MHz, the UCC2809DTR-2 enables the use of smaller inductors and capacitors, leading to more compact and efficient power supply designs. This high-frequency operation also improves the transient response and overall system performance.
• Wide Supply Voltage Range: The UCC2809DTR-2 operates within a wide supply voltage range of 8V to 19V, making it suitable for a broad range of input voltage conditions. This wide range ensures stable operation across various power sources.
• Output Isolation: The device provides isolated output, which is crucial for applications requiring galvanic isolation between the input and output stages. This feature enhances safety and reduces the risk of electrical shock.
• Compliance and Reliability: The UCC2809DTR-2 is REACH unaffected and ROHS3 compliant, ensuring that it meets stringent environmental and safety standards. Additionally, it has a moisture sensitivity level (MSL) of 1, indicating that it is not sensitive to moisture and can be stored and handled without special precautions.

UCC2809DTR-2 Applications

The UCC2809DTR-2 is well-suited for a variety of applications where high efficiency, compact design, and reliability are paramount. Some specific use cases include:

• Power Supplies: Ideal for designing efficient and compact power supplies for consumer electronics, industrial equipment, and medical devices.
• Adapters and Chargers: The high-frequency operation and wide input voltage range make it suitable for creating compact and efficient adapters and chargers for various electronic devices.
• Telecommunications: The device can be used in telecom infrastructure to provide reliable power conversion solutions that meet stringent performance and safety standards.
• Automotive Electronics: The robustness and compliance with environmental standards make it suitable for automotive applications where reliability and safety are critical.

Conclusion of UCC2809DTR-2

The UCC2809DTR-2 from Texas Instruments stands out as a versatile and reliable offline switcher controller, offering a combination of high performance and flexibility. Its support for multiple topologies, high switching frequency, and wide supply voltage range make it suitable for a wide range of applications. The inclusion of features such as frequency control, soft start, and output isolation further enhances its appeal. With its compliance to environmental and safety standards, the UCC2809DTR-2 is an excellent choice for engineers looking to design efficient and reliable power management solutions.

UCC2809DTR-2 Documents

Download datasheets and manufacturer documentation for UCC2809DTR-2

Images :

Mechanical Outline Drawing      

PCN :

Product Change Notification 2024-08-28 (PDF)      

Models :

UCC2809DTR-2 Symbol & Footprint by SnapMagic      

Application Notes :

U-165 Design Rvw: Isolated 50 W Flyback Converter Using UCC3809 and UC3965       Programming the UCC3809 for 90% Maximum Duty Cycle Clamp       U-168 Implementing a Practical Off-line Lithium-Ion Charger Using the UCC3809      

Technical Resources :

UCC1/2/3809-2 TINA-TI Transient Reference Design      

SPICE Models :

UCC1/2/3809-2 TINA-TI Transient Spice Model       UCCx809-2 Family Unencrypted PSpice Transient Model Package (Rev. A)