LT3797IUKG#PBF

LED Driver IC Overview

The LT3797IUKG#PBF is a high-performance LED driver controller manufactured by Analog Devices Inc. It supports multiple topologies including Flyback, SEPIC, Step-Down (Buck), and Step-Up (Boost). The device features three independent output channels, each capable of delivering up to 5 A of output current. It operates within a 52-pin QFN package measuring 7x8 mm. The component includes analog and PWM dimming capabilities for precise light control. Supply current is specified at 750 uA, and it is designed for automotive applications.

LED Driver IC Feature Summary

• Supports versatile power topologies including Flyback, SEPIC, Buck, and Boost configurations
• Provides three independent output channels with integrated current regulation
• Enables precise illumination control through combined analog and PWM dimming interfaces

LED Driver IC Applications

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

LED Driver IC Procurement Notes

Verify the specific suffix and tape-and-reel or tube packaging details directly with the manufacturer or authorized distributors before ordering. Confirm that the 52-QFN footprint matches your PCB design constraints. Ensure thermal management solutions are adequate for the expected operating currents. Check for any recent product change notices regarding pinout or electrical specifications.

LED Driver IC Selection Notes

Select this component when designing multi-channel LED drivers requiring flexible topology options such as boost or buck-boost configurations. It is suitable for applications demanding high output current per channel without external microcontroller intervention for basic regulation. Consider the 52-QFN package size and thermal dissipation requirements during the initial schematic layout phase.

LED Driver IC Part Context

This part belongs to the LT3797 family of LED driver controllers from Analog Devices. It is distinct from other series like the LTC3886 switching controllers or LT3791 buck-boost regulators due to its dedicated multi-channel LED architecture. The I-grade designation indicates an extended industrial temperature range capability compared to commercial variants.

LED Driver IC Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Analog Devices official cross-reference tools for potential alternatives.