LT3755EMSE#PBF

LED Driver IC Overview

The LT3755EMSE#PBF is a DC/DC controller designed for high-current LED driving applications. It supports Boost, Buck, and Buck-Boost topologies with an input voltage range up to 40V and output capability up to 75V. The device delivers a typical output current of 10A and operates at a switching frequency of 1000 kHz. It features true color PWM dimming, open LED detection, and resistor-set frequency control. The component functions within an operating temperature range of -40°C to 125°C.

LED Driver IC Feature Summary

• Supports multiple LED driver topologies including Boost, Buck, and Buck-Boost configurations
• Enables true color PWM dimming for accurate color maintenance across dimming ranges
• Includes built-in open LED detection for system protection and diagnostics

LED Driver IC Applications

• High current LED lighting systems
• Automotive exterior lighting applications
• Industrial LED illumination setups

LED Driver IC Procurement Notes

Verify the specific suffix #PBF indicates lead-free packaging when sourcing. Confirm that the EMSE package designation matches the required thermal and physical constraints for the target PCB layout. Ensure the supplier provides official Analog Devices documentation to validate the part number authenticity and manufacturing origin.

LED Driver IC Selection Notes

Select this controller when designing circuits requiring high output currents up to 10A with flexible topology options. Consider the 1000 kHz switching frequency for balancing efficiency and passive component size. Evaluate the need for true color dimming capabilities if maintaining chromaticity during low brightness levels is critical for the application.

LED Driver IC Part Context

This component belongs to the LT3755 family of DC/DC controllers from Analog Devices. The family includes variants such as LT3755-1 and LT3755-2, which share similar core functionalities but may differ in specific electrical characteristics or pin configurations. The LT3755 series is engineered specifically for robust LED driving performance.

LED Driver IC Replacement Considerations

Direct substitutes include LT3755EMSE-1#PBF and LT3755EMSE#WPBF. Verify compatibility regarding package type and specific electrical tolerances before swapping. Cross-reference datasheets to ensure equivalent functionality in the target circuit design.