UC2825ADWTRG4

The UC2825ADWTRG4 is a high-performance, integrated pulse-width modulation (PWM) controller manufactured by Texas Instruments. It is designed for use in various power supply applications, including DC-DC converters and power management systems.

Key Features:

1. Architecture: The UC2825A features a voltage-mode control architecture, which allows for stable operation and ease of design in power supply circuits. It includes a high-speed comparator and a precision reference voltage.

2. Operating Voltage: The device operates over a wide input voltage range, typically from 8V to 40V, making it suitable for a variety of applications.

3. Output Drive Capability: The UC2825A can drive external power MOSFETs directly, providing a peak output current of up to 1A. This capability is essential for efficient switching in power supply designs.

4. Frequency Range: The PWM controller operates at a frequency range of up to 500 kHz, allowing for compact designs and improved efficiency in power conversion.

5. Soft Start Feature: The integrated soft-start function helps to limit inrush current during startup, enhancing system reliability and performance.

6. Protection Features: The UC2825A includes several protection features such as over-voltage protection (OVP), under-voltage lockout (UVLO), and current limiting, which help to safeguard the power supply and connected loads.

7. Thermal Performance: The device is housed in a 20-pin TSSOP (Thin Shrink Small Outline Package) package, which provides good thermal performance and allows for efficient heat dissipation.

8. Applications: Common applications for the UC2825A include isolated and non-isolated DC-DC converters, battery chargers, and power supplies for telecommunications and industrial equipment.

Electrical Characteristics:

• Reference Voltage: Typically around 5V, with a tolerance that ensures stable operation.
• Temperature Range: The device is rated for operation from -40°C to +125°C, making it suitable for a wide range of environmental conditions.

Conclusion:

The UC2825ADWTRG4 from Texas Instruments is a versatile and robust PWM controller that offers a combination of performance, protection, and ease of use, making it an excellent choice for engineers designing efficient power supply solutions. Its features cater to both high-performance applications and general-purpose power management needs, ensuring reliability and efficiency in various electronic systems.