LT3478IFE-1

LED Driver IC Overview

The LT3478IFE-1#PBF is a monolithic LED driver IC from Analog Devices Inc., housed in a 16-pin TSSOP package. It supports both Boost and Buck topologies with an input voltage range of 2.8 V to 36 V. The device delivers up to 4.2 A output current and can generate output voltages up to 42 V. Operating frequencies are adjustable from 200 kHz to 2.25 MHz. It features PWM dimming, open LED protection, and operates within a temperature range of -40°C to +125°C.

LED Driver IC Feature Summary

• Supports versatile Boost and Buck converter topologies for diverse LED driving requirements
• Integrates True Color PWM dimming capability for accurate brightness 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 illumination fixtures

LED Driver IC Procurement Notes

Verify the specific suffix #PBF indicates tube packaging versus #TRPBF for reel packaging when sourcing. Confirm availability status as supply may be limited or restricted in certain regions. Ensure the selected variant matches the required topology configuration for the target design.

LED Driver IC Selection Notes

Select this component for designs requiring high peak switch currents up to 4.5 A. Consider the wide input voltage range suitable for battery-powered or variable source applications. Evaluate thermal management needs due to the single-channel high-current capability in the TSSOP-16 package.

LED Driver IC Part Context

This part belongs to the LT3478 series of mono LED drivers. It is distinct from the standard LT3478 by supporting both buck and boost modes. The device is designed for robust performance in demanding lighting environments requiring precise current regulation.

LED Driver IC Replacement Considerations

LT3478IFE#PBF is a parameter-equivalent alternative within the same family, though it may differ in supported topology configurations.