Texas Instruments

UCC28221DG4

UCC28221DG4 Description

The UCC28221DG4 is a high-performance offline switch flyback controller designed for power management applications. Manufactured by Texas Instruments, this IC is part of the Power Management (PMIC) category and is housed in a 16SOIC package. It is specifically engineered to provide efficient and reliable power conversion in isolated output applications. With a switching of frequency 2MHz, the UCC28221DG4 ensures high efficiency and reduced component size, making it ideal for compact designs. The device operates within a supply voltage range of 8.4V to 14.5V and features a duty cycle of up to 75%. The UCC28221DG4 also includes soft start functionality and robust fault protection mechanisms, such as current limiting and over-voltage protection, to safeguard the system from potential damage. It is REACH unaffected and RoHS3 compliant, ensuring environmental sustainability and regulatory compliance. The moisture sensitivity level (MSL) is rated at 1 (unlimited), making it suitable for various manufacturing environments.

UCC28221DG4 Features

• Topology: Flyback, ensuring efficient power conversion with minimal components.
• Mounting Type: Surface Mount, allowing for compact and space-efficient designs.
• Internal Switch(s): No internal switch, providing flexibility for external component selection.
• Control Features: Soft Start, which helps in reducing inrush current and stabilizing the system during startup.
• Fault Protection: Current Limiting and Over Voltage protection, ensuring system reliability and.
  longevity- Frequency - Switching: 2MHz, enabling high-frequency operation and smaller passive components.
• Voltage - Start Up: 13V, ensuring reliable startup under various input conditions.
• Duty Cycle: Up to 75%, allowing for efficient power transfer and reduced power loss.
• Output Isolation: Isolated, ensuring safety and reliability in applications requiring galvanic isolation.
• Voltage - Supply (Vcc/Vdd): 8.4V to 14.5V, providing a wide operating range for various input voltage sources.
• Package: Tube, facilitating easy handling and integration into manufacturing processes.
• Environmental Compliance: REACH Unaffected and RoHS3 Compliant, ensuring compliance with environmental regulations.
• Moisture Sensitivity Level (MSL): 1 (Unlimited), making it suitable for a wide range of manufacturing environments.

UCC28221DG4 Applications

The UCC28221DG4 is ideal for a variety of applications where efficient power conversion and isolation are critical. Some specific use cases include:
-Ad aptive Power Supplies: For devices requiring flexible and efficient power management.

• Isolated Power Modules: In applications where galvanic isolation is necessary for safety and reliability.
• High-Frequency Converters: Benefiting from the 2MHz switching frequency, enabling compact and high-efficiency designs.
• Medical Equipment: Where isolated power supplies are essential for patient safety and regulatory compliance.
• Telecommunications: For powering various components in communication infrastructure with high reliability and efficiency.
• Industrial Automation: Providing stable and efficient power to control systems and sensors in industrial environments.

Conclusion of UCC28221DG4

The UCC28221DG4 from Texas Instruments stands out as a versatile and reliable offline switch flyback controller. Its combination of high switching frequency, wide supply voltage range, and robust fault protection mechanisms make it an excellent choice for a variety of power management applications. The inclusion of soft start functionality and isolated output further enhances its suitability for applications requiring high reliability and safety. With its environmental compliance and moisture sensitivity level, the UCC28221DG4 is well-suited for modern manufacturing processes. Overall, the UCC28221DG4 offers comprehensive a solution for efficient and reliable power conversion, making it a preferred choice for engineers and designers in the electronics industry.