The UCC24624DR and UCC24624DT are advanced synchronous rectifier (SR) controllers designed by Texas Instruments for use in switch-mode power supplies. These devices are part of the UCC24624 series, which are known for their high-performance and energy-efficient operation. They are specifically tailored to enhance the efficiency of flyback, forward, and half-bridge power topologies.

These controllers are engineered to replace Schottky diodes with MOSFETs in the secondary side of AC/DC and isolated DC/DC power supplies. By doing so, they significantly reduce power losses and improve overall system efficiency, especially in applications where low output voltage and high current are critical. The UCC24624 series is ideal for a wide range of products, including server and telecom power supplies, adapters, and industrial power systems.

Key Features:

• High Efficiency: The UCC24624 series enables the use of low R_DS(on) MOSFETs, thus minimizing conduction losses and enhancing overall efficiency.
• Versatility: Compatible with various power supply topologies, the controllers can be used in multiple applications and configurations.
• Advanced Control: The devices offer accurate control with adaptive gate drive timing to optimize MOSFET switching.
• Robust Protection: Features include under-voltage lockout (UVLO) and overcurrent protection to ensure safe and reliable operation.
• Compact Form Factor: Available in both 8-pin SOIC (UCC24624DR) and 8-pin SON (UCC24624DT) packages, allowing flexibility in PCB design and space-saving solutions.

The UCC24624 series controllers are designed with an innovative control method that ensures low cross-conduction and reverse recovery losses. They are capable of driving N-Channel MOSFETs in a synchronous rectification scheme, which is critical for secondary side rectification in isolated power supply systems.

With the integration of the UCC24624DR or UCC24624DT, designers can achieve a high-efficiency power supply that meets the stringent requirements of modern electronic devices. The controllers' enhanced features and robust protection mechanisms make them a reliable choice for improving power supply performance.

For detailed technical specifications, application notes, and support resources, visit the Texas Instruments website or contact their support team.