Texas Instruments

UCC2808AD-2  

DC DC Switching Controllers

The UCC2808AD-2 is a high-voltage, high-power factor, step-down switching regulator controller from Texas Instruments. It is designed to provide efficient and reliable power conversion in a wide range of applications.

Description:

The UCC2808AD-2 is a monolithic integrated circuit that provides a complete solution for offline power supply applications. It features a fixed frequency, current mode control architecture that offers excellent line and load regulation, as well as fast transient response. The device is available in a thermally enhanced 20-pin HSOP package.

Features:

1. High-voltage operation: The UCC2808AD-2 can operate with input voltages up to 750V, making it suitable for a wide range of power supply applications.
2. High-power factor: The device features a power factor correction (PFC) control scheme that improves the power factor and reduces input current harmonics.
3. Fixed frequency operation: The UCC2808AD-2 operates at a fixed switching frequency of 65kHz, which simplifies the design and reduces EMI.
4. Current mode control: The device uses a current mode control architecture that provides excellent line and load regulation, as well as fast transient response.
5. Thermal protection: The UCC2808AD-2 features thermal shutdown and over-temperature warning features to protect the device and the power supply system.
6. Soft start: The device includes a soft start function that reduces inrush current and minimizes output voltage overshoot during startup.
7. Burst mode operation: The UCC2808AD-2 can operate in burst mode at light loads to improve efficiency and reduce no-load power consumption.

Applications:

The UCC2808AD-2 is suitable for a wide range of power supply applications, including:

1. Industrial and commercial power supplies
2. Telecom power supplies
3. LED lighting power supplies
4. Battery chargers
5. PC power supplies
6. TV and monitor power supplies
7. Medical power supplies

In summary, the UCC2808AD-2 is a versatile and efficient power supply controller that offers high-voltage operation, high-power factor, and excellent regulation. Its fixed frequency operation and current mode control architecture make it suitable for a wide range of power supply applications.

UCC2808AD-2 Documents

Download datasheets and manufacturer documentation for UCC2808AD-2

Datasheets :

UCC2808A-(1,2), UCC3808A-(1,2) Datasheet      

HTML Datasheet :

UCC2808A-(1,2), UCC3808A-(1,2) Datasheet      

PCN Design/Specification :

Mult Devices Font 21/Apr/2018