Texas Instruments

UC2875QP  

AC DC Converters, Offline Switches

UC2875QP Description

The UC2875QP is an integrated circuit (IC) designed for offline switch applications, specifically tailored for full-bridge configurations. Manufactured by Texas Instruments, this IC is categorized under AC-DC Converters and Offline Switches. It is housed in a Tube package and features a 28-pin PLCC (Plastic Leaded Chip Carrier) form factor. The UC2875QP is known for its robust performance and versatile control features, making it suitable for a wide range of power conversion applications.

UC2875QP Features

• Frequency Control and Soft Start: The UC2875QP incorporates advanced frequency control mechanisms and soft start capabilities, ensuring smooth and stable operation during startup and under varying load conditions.
• Synchronization: This feature allows the IC to synchronize with external clocks or other switching devices, enhancing overall system efficiency and reducing electromagnetic interference (EMI).
• Current Limiting and Fault Protection: The IC includes built-in current limiting and fault protection mechanisms, safeguarding the device and connected components from overcurrent and other potential faults.
• Wide Operating Voltage Range: The UC2875QP operates within a supply voltage range of 9.5V to 20V, providing flexibility in power supply design and compatibility with various input voltage sources.
• High Duty Cycle: With a duty cycle of 100%, the UC2875QP is capable of delivering maximum power transfer efficiency, making it ideal for high-power applications.
• Compliance and Safety: The UC2875QP is REACH unaffected and RoHS3 compliant, ensuring it meets the highest environmental and safety standards. Additionally, it has a Moisture Sensitivity Level (MSL) of 2 (1 Year), making it suitable for extended storage and handling in controlled environments.
• Mounting Type: Surface Mount technology allows for compact and efficient integration into modern printed circuit boards (PCBs), facilitating high-density designs and automated assembly processes.

UC2875QP Applications

The UC2875QP is particularly well-suited for applications requiring high efficiency and reliability in offline power conversion. Some specific use cases include:

• Power Supplies: Ideal for designing power supplies in consumer electronics, industrial equipment, and telecommunications infrastructure.
• Adapters and Chargers: Suitable for creating efficient and compact power adapters and chargers for various electronic devices.
• Energy-Efficient Systems: The IC's high efficiency and control features make it a preferred choice for energy-efficient power conversion systems, contributing to reduced energy consumption and lower operational costs.
• Medical Equipment: Given its compliance with stringent environmental and safety standards, the UC2875QP can be used in medical devices where reliability and safety are paramount.

Conclusion of UC2875QP

The UC2875QP from Texas Instruments stands out as a versatile and reliable offline switch IC, offering a comprehensive set of features and benefits for power conversion applications. Its advanced control mechanisms, wide operating voltage range, and compliance with industry standards make it an excellent choice for engineers and designers looking to achieve high efficiency and reliability in their power supply designs. While the product is now obsolete, its legacy continues to influence the development of modern power conversion solutions.

UC2875QP Documents

Download datasheets and manufacturer documentation for UC2875QP

Datasheets :

UC1875-78, 2875-78, 3875-78