Product Overview: LT3791EFE-1

The LT3791EFE-1 is a robust and highly efficient synchronous buck-boost DC/DC LED driver and controller from Linear Technology, designed to regulate LED current with precision. This versatile component is capable of operating from a wide input voltage range, making it suitable for a variety of applications, from automotive and industrial lighting to general-purpose power regulation tasks.

Key Features

• Wide Input Voltage Range: The LT3791EFE-1 is engineered to handle input voltages from 4.7V to 60V, providing flexibility for various power supply conditions.
• High Output Voltage Capability: It can produce an output voltage up to 60V, which is ideal for driving multiple LEDs in series and ensuring consistent illumination across the array.
• Synchronous Operation: The device's synchronous rectification feature increases efficiency by reducing power loss, making it an energy-efficient choice for continuous operation.
• Constant-Current and Constant-Voltage Modes: The LT3791EFE-1 can be configured to provide a constant current for driving LEDs or a constant voltage for charging batteries or powering electronics.
• Spread Spectrum Frequency Modulation: This feature minimizes electromagnetic interference (EMI), making the product suitable for noise-sensitive applications.

Thermal Management and Protection

The LT3791EFE-1 incorporates thermal protection to safeguard against overheating. It also includes a range of protection features such as open-circuit, short-circuit, overvoltage, and overcurrent protection to ensure reliable operation under adverse conditions.

Applications

With its versatile design, the LT3791EFE-1 is an excellent choice for a broad spectrum of applications, including:

• Automotive and architectural lighting
• Industrial high power lighting
• Battery charging
• Power supplies for telecommunications and networking

The LT3791EFE-1 is available in a thermally enhanced TSSOP-28 package, offering a compact solution for space-constrained applications. Its advanced features and robust design make it a go-to driver/controller for those seeking performance and reliability in their LED lighting or power regulation systems.