Texas Instruments

UCC2808DTR-2  

DC DC Switching Controllers

The UCC2808DTR-2 is a high-voltage, high-power factor, step-down PWM controller from Texas Instruments. It is designed for offline, non-isolated power supply applications, such as desktop computers, monitors, and other high-power consumer electronics.

Description:

The UCC2808DTR-2 is a monolithic step-down PWM controller that integrates a power MOSFET driver, error amplifier, and oscillator. It operates from a supply voltage as high as 75V and can deliver up to 100W of output power. The device features a fixed 65kHz switching frequency, which can be synchronized to an external clock for multiple phase applications.

Features:

1. High-voltage operation: The UCC2808DTR-2 can operate from a supply voltage as high as 75V, making it suitable for a wide range of power supply applications.
2. High-power factor: The device is designed to achieve high power factor and low total harmonic distortion (THD) in accordance with the Energy Star and Blue Angel standards.
3. Fixed 65kHz switching frequency: The UCC2808DTR-2 has a fixed switching frequency of 65kHz, which can be synchronized to an external clock for multiple phase applications.
4. Power MOSFET driver: The device integrates a power MOSFET driver, which simplifies the design and reduces the number of external components required.
5. Error amplifier: The UCC2808DTR-2 includes an error amplifier, which allows for precise output voltage regulation and feedback control.
6. Overload and short-circuit protection: The device provides overload and short-circuit protection to prevent damage to the power supply in case of abnormal operating conditions.

Applications:

1. Desktop computers
2. Monitors
3. High-power consumer electronics
4. Telecommunications equipment
5. Industrial control systems
6. Medical equipment

In summary, the UCC2808DTR-2 is a versatile and high-performance step-down PWM controller from Texas Instruments, suitable for a wide range of high-voltage, high-power applications. Its features, such as high-voltage operation, high-power factor, and integrated power MOSFET driver, make it an ideal choice for designing efficient and reliable power supplies.

UCC2808DTR-2 Documents

Download datasheets and manufacturer documentation for UCC2808DTR-2

Datasheets :

UCC2808-1/2, UCC3808-1/2      

HTML Datasheet :

UCC2808-1/2, UCC3808-1/2      

PCN Design/Specification :

Mult Devices Font 21/Apr/2018