The LM5104SD from Texas Instruments is a high-voltage, high-speed, half-bridge gate driver designed to drive both the high-side and low-side N-Channel MOSFETs in a synchronous buck or a half-bridge configuration. Its advanced features and robust design make it ideal for a wide range of power management applications.

Key Features

• High Voltage Capability: The LM5104SD is capable of handling voltages up to 100V, making it suitable for high-voltage power conversion systems.
• High-Speed Operation: With a propagation delay of typically 25ns, the driver enables fast switching, which is essential for reducing transition losses and improving efficiency.
• Independent High-Side and Low-Side Outputs: This feature allows for flexible control and the possibility to implement different topologies.
• Bootstrap Operation: The integrated bootstrap diode simplifies the circuit design by supporting the high-side gate driver.
• Under-Voltage Lockout (UVLO): UVLO protection ensures that the driver operates only when the supply voltage is sufficient, preventing malfunctions.
• Thermal Shutdown: An integrated thermal shutdown feature prevents the device from overheating, thus ensuring reliability and longevity.

Applications

• Switch Mode Power Supplies (SMPS)
• DC-DC Converters
• Motor Controllers
• Class-D Audio Amplifiers
• Power Inverters

Package and Availability

The LM5104SD is offered in a compact 8-pin WSON package, which is suitable for space-constrained applications. The device is available for order through Texas Instruments' official distributors and is supported by comprehensive technical documentation, including datasheets, application notes, and design resources to facilitate rapid design-in and deployment in commercial and industrial systems.

In summary, the LM5104SD gate driver is a highly versatile and efficient solution for driving MOSFETs in high-voltage applications, providing designers with performance and reliability to meet stringent power management requirements.