Texas Instruments

UCC28502DWTR

UCC28502DWTR Description

The UCC28502DWTR is a Power Factor Correction (PFC) controller IC designed for average current mode operation, manufactured by Texas Instruments. This IC is specifically tailored for applications requiring high efficiency and reliable power management. It operates within a supply voltage range of 9.7V to 18V and features a switching frequency of 100kHz, ensuring optimal performance in various power conversion systems. The UCC28502DWTR is packaged in a Surface Mount Tape & Reel (TR) format, making it suitable for automated assembly processes. Despite being marked as obsolete, this IC remains a robust solution for legacy systems and specific applications where its unique features are still highly valued.

UCC28502DWTR Features

• Average Current Mode: The UCC28502DWTR operates in average current mode, providing precise control over the input current waveform. This mode ensures high power factor correction and low total harmonic distortion (THD), making it ideal for applications requiring high efficiency and compliance with stringent power quality standards.
• Wide Supply Voltage Range: With a supply voltage range of 9.7V to 18V, the UCC28502DWTR can accommodate a variety of input voltage levels, enhancing its across versatility different power supply designs.
• 100kHz Switching Frequency: The 100kHz switching frequency allows for compact transformer designs and high power density, which is crucial for space-constrained applications. This frequency also ensures minimal electromagnetic interference (EMI), contributing to overall system reliability.
• Low Startup Current: The IC features a low startup current of 150 µA, enabling efficient startup in low-power applications and reducing power consumption during the initial phase.
• Compliance and Packaging: The UCC28502DWTR is REACH unaffected and RoHS3 compliant, ensuring it the meets latest environmental and regulatory standards. The Tape & Reel (TR) packaging format facilitates easy integration into automated manufacturing processes, enhancing production efficiency.
• Moisture Sensitivity Level (MSL): With an MSL rating of 2 (1 Year), the UCC28502DWTR is suitable for storage and handling in a wide range of environmental conditions, ensuring long-term reliability and performance.

UCC28502DWTR Applications

The UCC28502DWTR is well-suited for a variety of power management applications, including-:

Switch-Mode Power Supplies (SMPS): Ideal for SMPS requiring high power factor correction and efficient power conversion, such as those found in telecommunications, industrial equipment, and consumer electronics.

• Uninterruptible Power Supplies (UPS): Enhances the efficiency and reliability of UPS systems by providing precise control over the input current, ensuring minimal power loss and high power quality.
• Power Adapters and Converters: Suitable for power adapters and converters where compact design and high efficiency are critical, such as in laptop chargers and portable electronic devices.
• Industrial Power Systems: Provides robust power management solutions for industrial applications, including motor drives, lighting systems, and renewable energy inverters.

Conclusion of UCC28502DWTR

The UCC28502DWTR, despite its obsolete status, remains a valuable component for specific power management applications. Its average current mode operation, wide supply voltage range, and 100kHz switching frequency offer significant advantages in terms of efficiency, power density, and compliance with power quality standards. The low startup current and robust packaging further enhance its suitability for a variety of applications, from SMPS to industrial power systems. For legacy systems and applications where its unique features are still required, the UCC28502DWTR continues to be a reliable and efficient soluti