Texas Instruments

UCC28720DR  

AC DC Converters, Offline Switches

UCC28720DR Description

The UCC28720DR is a high-performance, flyback topology offline switch integrated circuit (IC) designed and manufactured by Texas Instruments. This surface-mount device is currently active and complies with the RoHS3 standard, indicating its environmentally friendly composition. With a supply voltage range of 9V to 35V and a startup voltage of 21V, the UCC28720DR is well-suited for a variety of applications requiring efficient power conversion.

UCC28720DR Features

• ECCN Classification: EAR99, indicating that it falls under the Export Administration Regulations but is not classified as having military or dual-use applications.
• Flyback Topology: This topology is known for its simplicity and efficiency, making it ideal for power conversion applications.
• Mounting Type: Surface Mount, which allows for compact designs and ease of integration into PCBs.
• Fault Protection: The UCC28720DR includes current limiting and over-voltage protection, enhancing the reliability and safety of the system.
• Switching Frequency: Operates between 650Hz and 80kHz, providing flexibility in design and performance.
• REACH Status: Unaffected by the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulation.
• Output Isolation: The IC offers isolated output, which is crucial for maintaining safety and performance in various power conversion applications.
• Moisture Sensitivity Level (MSL): Rated at 1 (Unlimited), indicating that the device is not sensitive to moisture and can be stored without special precautions.

UCC28720DR Applications

The UCC28720DR is ideal for applications where efficient power conversion is critical. Some specific use cases include:

• AC-DC Converters: The flyback topology and high switching frequency make it suitable for converting AC power to DC.
• Offline Switches: Its robust fault protection and isolated output make it an excellent choice for offline switch applications.
• Power Supplies: The wide supply voltage range and startup voltage make it adaptable to various power supply requirements.

Conclusion of UCC28720DR

The UCC28720DR from Texas Instruments stands out for its versatility, reliability, and compliance with environmental standards. Its unique features, such as isolated output and robust fault protection, make it a preferred choice for designers looking to implement efficient and safe power conversion solutions. Whether used in AC-DC converters, offline switches, or power supplies, the UCC28720DR delivers high performance and meets the stringent requirements of the electronics industry.

UCC28720DR Documents

Download datasheets and manufacturer documentation for UCC28720DR

Datasheets :

UCC28720      

Design Resources :

UCC28720 Design with WEBENCH® Power Designer      

HTML Datasheet :

UCC28720