LT3755EUD#TRPBF

LED Driver IC Overview

The LT3755EUD#TRPBF is a DC/DC controller designed for driving high-current LEDs. It supports Boost, Buck, Buck-Boost, Flyback, and SEPIC topologies with an input voltage range of 4.5 V to 40 V and adjustable output up to 75 V. The device delivers a maximum output current of 10 A and operates at frequencies between 100 kHz and 1 MHz. It features PWM dimming and open LED protection within a 16-pin QFN package.

LED Driver IC Feature Summary

• Supports multiple converter topologies including Boost, Buck, Buck-Boost, Flyback, and SEPIC for flexible LED driver designs.
• Integrates analog and PWM dimming capabilities for precise light control.
• Includes built-in open LED protection to enhance system reliability.

LED Driver IC Applications

• High-power LED lighting systems
• Automotive exterior lighting applications
• Industrial LED illumination

LED Driver IC Procurement Notes

Verify the specific suffix (#TRPBF) indicates tape-and-reel packaging when sourcing. Confirm the component status as restricted availability through official Analog Devices channels. Ensure compatibility with required thermal management solutions given the 10 A output capability. Validate RoHS compliance details directly from the manufacturer's documentation prior to procurement.

LED Driver IC Selection Notes

Select this controller for applications requiring high current drive and versatile topology support. Consider the 16-pin QFN package constraints for PCB layout. Evaluate the need for external N-channel MOSFETs compatible with the internal 7.15 V supply. Assess thermal performance requirements based on the operating temperature range of -40°C to +125°C.

LED Driver IC Part Context

This component belongs to the LT3755 series of LED drivers manufactured by Analog Devices. It functions as a constant current source controller, utilizing an internal regulator to drive external power switches. The series is engineered for robust performance in demanding lighting environments, offering integrated protection features and wide input voltage tolerance.

LED Driver IC Replacement Considerations

LT3755IUD#TRPBF is a confirmed automotive-grade variant within the same family. Verify pinout and electrical specifications match before substitution. Other LT3755 variants may differ in packaging or qualification standards.