The LM5027SQ/NOPB is a feature-rich, high-performance Pulse Width Modulation (PWM) controller designed by Texas Instruments specifically for active clamp forward converter and full-bridge power supply designs. This advanced controller integrates all the necessary functions required for reliable and efficient power conversion in a wide range of applications including telecom, industrial, and server power systems.

Key Features

• Voltage Mode Control: The LM5027SQ/NOPB utilizes voltage mode control with line voltage feed-forward which provides excellent line regulation for fixed frequency converters.
• Integrated Start-Up Regulator: This device features an integrated high-voltage start-up regulator that operates over a wide input range of 13V to 100V, ensuring a reliable start-up and operation under varying input conditions.
• Programmable Soft-Start: The soft-start function is programmable, which allows for controlled ramp-up of the output voltage, thereby reducing stress on the power supply components during start-up.
• Advanced Protection Features: It offers multiple protection features including cycle-by-cycle current limit, thermal shutdown, and over-voltage protection, which enhance the safety and durability of the power supply.
• Active Clamp and Synchronous Rectifier Control Outputs: The controller provides active clamp control to reset the transformer during each cycle and synchronous rectifier control outputs for improved efficiency.

Applications

The versatility of the LM5027SQ/NOPB makes it suitable for a variety of high-performance applications. Key applications include:

• Telecom and Datacom Power Supplies
• Industrial Power Systems
• Server and Storage Systems Power Supplies
• Distributed Power Systems

Quality and Reliability

Texas Instruments is committed to delivering high-quality and reliable components. The LM5027SQ/NOPB is available in a thermally enhanced 16-pin WQFN package and is characterized for operation from -40°C to 125°C. With the NOPB designation, this product is also lead-free and RoHS compliant, ensuring it meets the environmental standards of today's electronic industry.