LT3755IMSE#PBF

LED Driver IC Overview

The LT3755IMSE#PBF is a single-channel LED lighting driver IC from Analog Devices Inc., housed in a 16-lead MSOP package with an exposed pad. It operates as a DC-DC controller supporting Boost, Buck, Buck-Boost, Flyback, and SEPIC topologies. The device accepts an input voltage range of 4.5V to 40V and can drive up to 10A output current. It features a programmable switching frequency between 100kHz and 1MHz, adjustable output voltage, and supports both analog and PWM dimming methods.

LED Driver IC Feature Summary

• Supports multiple converter topologies including Boost, Buck, Buck-Boost, Flyback, and SEPIC for flexible LED string configurations.
• Enables precise brightness control through integrated analog and PWM dimming capabilities.
• Includes open LED protection to safeguard the system during fault conditions.

LED Driver IC Applications

• General LED lighting systems requiring high current drive
• Automotive exterior lighting applications
• Industrial illumination setups

LED Driver IC Procurement Notes

Verify the specific suffix (#PBF) indicates lead-free RoHS compliance when ordering. Confirm the package type matches the design requirements, as variants like #TRPBF use tape-and-reel packaging while #PBF uses tubes. Ensure the selected part number aligns with the required operating temperature range and electrical specifications for the target application environment.

LED Driver IC Selection Notes

Select this component for designs requiring a single-channel controller capable of handling high currents up to 10A. Consider the available topologies to match the LED string voltage and input supply constraints. Verify that the 16-MSOP package fits the PCB layout constraints and thermal management strategy, as the exposed pad requires proper soldering for heat dissipation.

LED Driver IC Part Context

This part belongs to the LT3755 family of LED controllers manufactured by Analog Devices Inc. The family includes variants such as LT3755IMSE-1#PBF and LT3755IMSE-2#PBF, which share similar core functionalities but may differ in specific pinouts or internal configurations. These devices are designed for robust LED driving in demanding environments.

LED Driver IC Replacement Considerations

Direct substitutes include LT3755IMSE-1#PBF and LT3755IMSE-2#PBF. Verify compatibility regarding pin assignments and internal circuitry differences between the -1 and -2 suffixes before swapping. Other LT3755 variants may require schematic adjustments due to topology or feature variations.