The LT3755IUD#PBF is a versatile and robust LED driver integrated circuit from Linear Technology, designed to cater to a wide array of applications requiring efficient power management for LED lighting. It is a high input voltage, high output voltage LED controller with a floating PWM dimming capability, making it ideal for driving high current LEDs with constant current for uniform brightness.

Key Features

• Wide Input Range: Capable of operating with an input voltage range from 6V to 100V, the LT3755IUD#PBF is suitable for a variety of power sources including automotive, industrial, and architectural lighting systems.
• High Output Voltage: It can drive LED strings with an output voltage up to 100V, allowing for multiple LEDs in series to ensure even current distribution and consistent lighting.
• Internal PWM Dimming: The IC features an internal PWM dimming generator that provides a true color PWM dimming with a range of 3000:1, which is ideal for applications where precise light control is required.
• Adjustable Frequency: The switching frequency can be programmed between 100kHz to 1MHz, allowing designers to optimize the size and efficiency of the external components.
• Thermal Protection: It includes thermal shutdown protection to prevent damage from overheating, ensuring long-term reliability of the IC and the overall lighting system.

Applications

The LT3755IUD#PBF is a versatile LED driver that can be used in a wide range of lighting applications, including:

• Automotive headlamps and interior lighting
• Industrial and commercial lighting systems
• Architectural detail and landscape lighting
• General purpose flashlight and high power lamp applications

Package and Quality

Enclosed in a compact QFN-16 package, the LT3755IUD#PBF meets stringent quality standards and is designed for easy integration into various circuit designs. With its advanced features and robust design, it is a preferred choice for engineers looking to create reliable and high-performance LED lighting solutions.