Texas Instruments

UCC3809PW-1  

AC DC Converters, Offline Switches

UCC3809PW-1 Description

The UCC3809PW-1 is an integrated circuit (IC) designed for offline switching applications, offering multiple topologies including Boost, Buck, Flyback, and Forward. Manufactured by Texas Instruments, this IC is housed in an 8-pin TSSOP package and is suitable for surface mount applications. Despite being marked as obsolete, the UCC3809PW-1 remains a robust solution for various power conversion needs.

UCC3809PW-1 Features

The UCC3809PW-1 features a wide range of technical specifications that make it a versatile component for power supply designs. Key features include:

• Frequency Control and Soft Start: The IC incorporates frequency control and soft start mechanisms, ensuring smooth startup and stable operation. This helps in reducing inrush currents and improving overall system reliability.
• High Switching Frequency: With a switching frequency of up to 1MHz, the UCC3809PW-1 allows for smaller passive components, which is advantageous for compact designs.
• Wide Supply Voltage Range: The IC operates within a supply voltage range of 8V to 19V, providing flexibility in power supply design.
• High Duty Cycle: A maximum duty cycle of 70% ensures efficient power transfer and minimizes power loss.
• Output Isolation: The UCC3809PW-1 offers isolated output, which is crucial for applications requiring electrical isolation between the input and output.
• Compliance and Standards: The IC is REACH unaffected and RoHS3 compliant, meeting environmental and safety standards.
• Moisture Sensitivity Level: With an MSL of 2 (1 Year), the UCC3809PW-1 is suitable for a variety of manufacturing environments.

UCC3809PW-1 Applications

The UCC3809PW-1 is ideal for a range of applications where efficient power conversion and compact design are critical. Specific use cases include:

• AC-DC Converters: The IC is well-suited for offline switch applications in AC-DC converters, providing efficient power conversion with minimal components.
• Power Supplies: Its multiple topology support makes it a versatile choice for various power supply designs, including those requiring isolated outputs.
• Consumer Electronics: The compact size and high switching frequency make it suitable for consumer electronics where space is a constraint.
• Industrial Applications: The wide supply voltage range and robust design make it ideal for industrial applications that require reliable power conversion.

Conclusion of UCC3809PW-1

The UCC3809PW-1, despite being marked as obsolete, remains a valuable component for power supply designers. Its wide range of features, including frequency control, soft start, and high switching frequency, make it a versatile choice for various applications. The IC's compliance with environmental and safety standards ensures it meets modern manufacturing requirements. While newer models may offer additional features, the UCC3809PW-1 continues to provide reliable performance and is an excellent choice for applications requiring efficient power conversion and compact design.

UCC3809PW-1 Documents

Download datasheets and manufacturer documentation for UCC3809PW-1

Datasheets :

UCC1809-1/-2, UCC2809-1/-2, UCC3809-1/-2      

HTML Datasheet :

UCC1809-1/-2, UCC2809-1/-2, UCC3809-1/-2