Texas Instruments

UCC3809PW-2  

AC DC Converters, Offline Switches

UCC3809PW-2 Description

The UCC3809PW-2 from Texas Instruments is a versatile offline switcher controller designed for a wide range of power management applications. This IC supports multiple topologies including Boost, Buck, Flyback, and Forward, making it suitable for various power conversion needs. It is housed in an 8-pin TSSOP package and is available in a tube package format.

The UCC3809PW-2 operates with a supply voltage range of 8V to 19V and features a switching frequency of up to 1MHz, enabling high-efficiency power conversion. It includes essential control features such as frequency control and soft start, ensuring smooth operation and reduced inrush current during startup. The device has a duty cycle capability of up to 70%, allowing for efficient power delivery.

UCC3809PW-2 Features

• Topology Versatility: Supports Boost, Buck, Flyback, and Forward topologies, providing flexibility for different power conversion requirements.
• High Switching Frequency: Capable of operating at up to 1MHz, enabling compact designs with high efficiency.
• Frequency Control and Soft Start: Ensures stable operation and reduces inrush current during startup, enhancing reliability.
• Wide Supply Voltage Range: Operates efficiently within an 8V to 19V supply voltage range, making it suitable for a variety of power supply applications.
• High Duty Cycle: Supports up to 70% duty cycle, allowing for efficient power delivery in demanding applications.
• Surface Mount Technology: Designed for surface mount applications, facilitating easy integration into modern PCB designs.
• Compliance and Safety: REACH unaffected and ROHS3 compliant, ensuring environmental and safety standards are met.
• Moisture Sensitivity Level: MSL 2 (1 Year), suitable for storage and handling in typical manufacturing environments.

UCC3809PW-2 Applications

The UCC3809PW-2 is ideal for a variety of applications requiring efficient power conversion and control. Some specific use cases include:

• Power Supplies: Suitable for designing isolated and non-isolated power supplies with high efficiency and compact form factors.
• Adapters and Chargers: Ideal for applications requiring high-frequency switching and efficient power delivery, such as AC-DC adapters and chargers.
• Industrial Equipment: Can be used in industrial applications where reliable power conversion and control are critical, such as in motor drives and power inverters.
• Consumer Electronics: Applicable in consumer electronics where compact size and high efficiency are essential, such as in TVs, monitors, and other home appliances.

Conclusion of UCC3809PW-2

The UCC3809PW-2 from Texas Instruments stands out as a robust and versatile offline switcher controller, offering a wide range of topologies and high-frequency operation. Its features, such as frequency control, soft start, and high duty cycle, make it a reliable choice for various power management applications. The device's compliance with environmental and safety standards, along with its surface mount technology, ensures ease of integration and long-term reliability. Whether used in power supplies, adapters, industrial equipment, or consumer electronics, the UCC3809PW-2 delivers efficient power conversion and control, making it an excellent choice for modern electronics design.

UCC3809PW-2 Documents

Download datasheets and manufacturer documentation for UCC3809PW-2

Images :

Mechanical Outline Drawing      

Models :

UCC3809PW-2 Symbol & Footprint by SnapMagic      

Application Notes :

Current balancing in four-pair high-power PoE applications      

Technical Resources :

UCC1/2/3809-2 TINA-TI Transient Reference Design      

SPICE Models :

UCC1/2/3809-2 TINA-TI Transient Spice Model       UCCx809-2 Family Unencrypted PSpice Transient Model Package (Rev. A)