Texas Instruments

UCC28633D

UCC28633D Description

The UCC28633D is an advanced offline switch flyback controller designed for high-efficiency power conversion applications. Manufactured by Texas Instruments, this device is part of the Power Management (PMIC) category and is housed in a 7SOIC package. It is specifically engineered to provide isolated output in a wide range of power supplies, making it ideal for applications requiring high reliability and performance.

UCC28633D Features

• Active Product Status: The UCC28633D is currently in active production, ensuring availability for ongoing projects and new designs.
• Frequency Range: It operates within a wide frequency range of 200Hz to 120kHz, allowing for flexibility in design and optimization of power conversion efficiency.
• No Internal Switches: The absence of internal switches provides designers with the freedom to choose their own external MOSFETs, optimizing for specific performance requirements.
• Start-Up Voltage: With a start-up voltage of 14.75V, the UCC28633D ensures reliable operation even in systems with varying input voltages.
• Supply Voltage Range: The device supports a supply voltage range of 8V to 20V, making it suitable for a variety of power supply applications.
• Compliance and Standards: The UCC28633D is REACH unaffected and RoHS3 compliant, ensuring it meets stringent environmental and safety standards.
• Moisture Sensitivity Level: With an MSL of 2 (1 Year), the device is suitable for surface mount applications without the risk of moisture-related issues.
• Topology: Utilizing a flyback topology, the UCC28633D offers efficient power conversion with minimal component count.
• Fault Protection: Comprehensive fault protection features, including current limiting, overload, over-temperature, and over-voltage protection, enhance system reliability and longevity.
• Duty Cycle: The device supports a duty cycle of up to 70%, providing efficient power delivery under various load conditions.
• Power Capability: Capable of handling up to 30W, the UCC28633D is well-suited for applications requiring moderate power levels.

UCC28633D Applications

The UCC28633D is ideal for a variety of applications where isolated power conversion is required. Its robust design and comprehensive feature set make it suitable for:

• Adaptive Voltage Positioning: Ensuring optimal power delivery and efficiency across varying load conditions.
• Energy Efficiency: Achieving high efficiency in power conversion, reducing energy waste and operational costs.
• Reliability: With comprehensive fault protection and compliance with environmental standards, the UCC28633D ensures long-term reliability in demanding applications.
• Adaptive Dead-Time Control: Optimizing switching performance and reducing electromagnetic interference (EMI).
• Power Factor Correction (PFC): Enhancing the power quality and efficiency of power supplies.
• Isolated Power Supplies: Providing safe and efficient power conversion in applications requiring galvanic isolation.

Conclusion of UCC28633D

The UCC28633D from Texas Instruments stands out as a versatile and reliable offline switch flyback controller. Its wide frequency range, comprehensive fault protection, and compliance with environmental standards make it an excellent choice for a variety of power management applications. Whether used in adaptive voltage positioning, energy-efficient designs, or isolated power supplies, the UCC28633D offers superior performance and reliability. Its ability to handle up to 30W and support for a duty cycle of up to 70% ensures it can meet the demands of modern power conversion systems. For engineers and designers looking for a robust and efficient power management solution, the UCC28633D is a standout option.