Texas Instruments

UC2846DWTR  

DC DC Switching Controllers

The Texas Instruments UC2846DWTR is a high-performance monolithic integrated circuit designed for use in off-line power supply applications. This device is specifically designed to provide a cost-effective solution for driving power MOSFETs in a variety of applications, including computer power supplies, telecom power supplies, and other industrial power supplies.

Description:

The UC2846DWTR is a fixed frequency, current mode, step-down switching regulator that incorporates advanced features such as burst mode operation, programmable frequency control, and overcurrent protection. The device is available in a small-outline transistor (SOT) package, making it suitable for use in compact and space-constrained applications.

Features:

1. Fixed 40 kHz switching frequency: This allows for the use of smaller external components and reduces EMI.
2. Burst mode operation: This feature allows the device to enter a low-power state during light load conditions, improving efficiency and reducing heat dissipation.
3. Programmable frequency control: This allows the user to adjust the switching frequency to optimize performance for a specific application.
4. Overcurrent protection: This feature protects the device from damage due to excessive current flow.
5. Soft-start: This feature provides a controlled ramp-up of the output voltage during start-up, reducing inrush current and minimizing stress on the output capacitors.
6. Thermal shutdown: This feature protects the device from overheating by shutting down the output in case of excessive temperature.

Applications:

The UC2846DWTR is suitable for a wide range of off-line power supply applications, including:

1. Computer power supplies
2. Telecom power supplies
3. Industrial power supplies
4. LED lighting power supplies
5. Battery chargers
6. DC-DC converters
7. Motor control applications

In summary, the Texas Instruments UC2846DWTR is a versatile and high-performance integrated circuit designed for use in off-line power supply applications. Its advanced features, such as burst mode operation and programmable frequency control, make it an ideal choice for designers looking to create efficient and reliable power supply solutions.

UC2846DWTR Documents

Download datasheets and manufacturer documentation for UC2846DWTR

Datasheets :

UC1846/7, UC2846/7, UC3846/7      

HTML Datasheet :

UC1846/7, UC2846/7, UC3846/7