Texas Instruments

UC28025N

UC28025N Description

The UC28025N is a high-performance DC-DC switching controller designed for a wide range of power conversion applications. Manufactured by Texas Instruments, this device is a transistor driver with a positive output configuration, making it ideal for driving power transistors in various switching power supply designs. The UC28025N operates within a voltage supply range of 9V to 30V and supports a switching frequency range of 340kHz to 460kHz, providing flexibility for different power supply requirements.

This controller is equipped with a synchronous rectifier, enhancing efficiency and reducing power loss. It features two output phases, which contribute to better load sharing and improved performance in multi-phase power supplies. The UC28025N also includes a comprehensive set of control features such as current limit, enable, frequency control, ramp, and soft start, ensuring robust and reliable operation.

UC28025N Features

• Output Type: Transistor Driver
• Output Configuration: Positive
• Frequency - Switching: 340kHz to 460kHz
• Voltage - Supply (Vcc/Vdd): 9V to 30V
• Control Features: Current Limit, Enable, Frequency Control, Ramp, Soft Start
• Duty Cycle (Max): 45%
• Output Phases: 2
• Synchronous Rectifier: Yes
• Package: Tube
• Mounting Type: Through Hole
• Product Status: Active
• REACH Status: REACH Unaffected
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): Not Applicable
• Clock Sync: No
• Number of Outputs: 2
• ECCN: EAR99
• HTSUS: 8542.39.0001

UC28025N Applications

The UC28025N is well-suited for a variety of applications due to its versatile design and robust feature set. It is particularly ideal for:

• Switching Power Supplies: The UC28025N's wide input voltage range and switching frequency make it suitable for designing efficient and reliable switching power supplies.
• Multi-Phase Power Supplies: With two output phases, the controller can effectively manage load sharing, making it ideal for multi-phase power supply applications.
• High-Efficiency Power Conversion: The inclusion of a synchronous rectifier enhances overall efficiency, making the UC28025N a preferred choice for applications requiring high efficiency.
• Industrial and Telecommunication Equipment: The UC28025N's robust control features and compliance with industry standards (REACH Unaffected, ROHS3 Compliant) make it suitable for use in industrial and telecommunication equipment.

Conclusion of UC28025N

The UC28025N from Texas Instruments stands out as a versatile and reliable DC-DC switching controller. Its wide operating voltage range, flexible switching frequency, and comprehensive control features make it an excellent choice for a variety of power conversion applications. The inclusion of a synchronous rectifier and two output phases further enhances its performance, making it ideal for high-efficiency power supplies and multi-phase designs. The UC28025N's compliance with industry standards ensures its suitability for use in a broad range of industries, including industrial and telecommunication equipment.