Texas Instruments

UCC2804DR81221G4  

Power Supply Controllers, Monitors

UCC2804DR81221G4 Description

The UCC2804DR81221G4 is a PWM controller designed for offline switch-mode power supplies, part of the UCC280x series by Texas Instruments. This device is optimized for high efficiency and reliability in various power management applications. It features a supply current of 500 µA and operates within a supply voltage range of 6.9V to 11V. The UCC2804DR81221G4 is available in a surface mount package, specifically in a Tape & Reel (TR) format, making it suitable for automated assembly processes. Despite being marked as obsolete, it remains a viable option for legacy systems and specific applications where its unique features are required. The device is REACH unaffected and RoHS3 compliant, ensuring it meets stringent environmental and safety standards. It also has a moisture sensitivity level (MSL) of 1, indicating it is suitable for unlimited exposure to standard factory environments.

UCC2804DR81221G4 Features

The UCC2804DR81221G4 offers several key features that distinguish it from similar PWM controllers:

• Low Supply Current: With a supply current of only 500 µA, this device is highly efficient, making it ideal for applications where power consumption is a critical factor.
• Wide Supply Voltage Range: Operating within a supply voltage range of 6.9V to 11V, it provides flexibility and robustness in various power supply configurations.
• Surface Mount Packaging: The surface mount package ensures ease of integration into modern PCB designs and compatibility with automated manufacturing processes.
• Environmental Compliance: Being REACH unaffected and RoHS3 compliant, it adheres to the highest environmental and safety standards, making it suitable for a wide range of applications.
• Moisture Sensitivity Level 1: The MSL rating of 1 ensures that the device can be safely stored and handled in standard factory environments without the need for special precautions.

UCC2804DR81221G4 Applications

The UCC2804DR81221G4 is well-suited for a variety of applications, particularly in offline switch-mode power supplies. Its low supply current and wide operating voltage range make it ideal for:

• Adaptive Voltage Control: Ensuring efficient power delivery in adaptive voltage control systems.
• Energy-Efficient Power Supplies: Suitable for applications requiring high efficiency and low power consumption.
• Legacy Systems: Ideal for maintaining and upgrading existing systems where this specific model is already in use.
• Industrial and Consumer Electronics: Applicable in a wide range of industrial and consumer electronics where reliable power management is crucial.

Conclusion of UCC2804DR81221G4

The UCC2804DR81221G4, despite being marked as obsolete, remains a valuable component for specific applications requiring its unique features. Its low supply current, wide operating voltage range, and surface mount packaging make it a reliable choice for various power management applications. The device's environmental compliance and moisture sensitivity level further enhance its suitability for modern manufacturing processes. For engineers and designers working on legacy systems or specific power management solutions, the UCC2804DR81221G4 offers a proven and efficient solution.

UCC2804DR81221G4 Documents

Download datasheets and manufacturer documentation for UCC2804DR81221G4

Datasheets :

UCC180x, 280x, 380x      

HTML Datasheet :

UCC180x, 280x, 380x