LT3755IMSE#TRPBF

LED Driver IC Overview

The LT3755IMSE#TRPBF is a DC/DC controller designed for driving high-current LEDs. It supports Flyback, SEPIC, Buck, and Boost topologies with a maximum output voltage of 75V. The device operates from a supply voltage range of 4.5V to 40V and delivers a typical output current of 10A. It features an internal 7.15V regulator to drive external N-channel MOSFETs. Switching frequency is adjustable between 100kHz and 1MHz. The component provides analog and PWM dimming capabilities and is housed in a 16-lead MSOP package with an exposed pad.

LED Driver IC Feature Summary

• Supports multiple LED driver topologies including flyback, SEPIC, buck, and boost configurations
• Enables precise current regulation for high-current LED applications
• Provides flexible dimming control through both analog and pulse-width modulation inputs

LED Driver IC Applications

• High-power LED lighting systems
• Automotive exterior lighting modules
• Industrial illumination fixtures

LED Driver IC Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm package type and tape-and-reel specifications. Ensure the selected variant matches the required thermal performance and pinout configuration for the target PCB layout. Cross-reference the manufacturer part number with authorized distributors to confirm availability and authenticity. Check for any recent product change notifications that may affect mechanical or electrical characteristics prior to finalizing procurement orders.

LED Driver IC Selection Notes

Select this controller when designing circuits requiring high output currents up to 10A and voltages up to 75V. Consider the operating temperature range of -40°C to 125°C for harsh environments. Evaluate the need for synchronous rectification if efficiency is critical, as the controller drives external low-side MOSFETs. Ensure the input voltage range aligns with the system power source, noting the minimum start-up voltage requirement.

LED Driver IC Part Context

This component belongs to the LT3755 family of LED drivers developed by Analog Devices. It serves as a versatile solution for various LED architectures, allowing designers to implement complex topologies using minimal external components. The series is engineered for robust performance in demanding lighting applications, offering reliable constant current regulation across wide input and output voltage ranges.

LED Driver IC Replacement Considerations

Consult official substitution lists for compatible alternatives within the same product family. Verify that any replacement maintains identical pinout compatibility and electrical specifications. Confirm that thermal dissipation requirements are met by the alternative package option.