LT3754IUH#TRPBF

LED Driver IC Overview

The LT3754IUH#TRPBF is a 16-channel LED driver and step-up DC/DC controller designed for high-performance lighting applications. It supports Boost, Buck, Buck-Boost, Flyback, and SEPIC topologies with an input voltage range of 4.5 V to 40 V. The device features adjustable output voltage up to 75 V and provides precise current regulation across all channels. Operating frequencies are programmable from 100 kHz to 1 MHz. It includes analog and PWM dimming capabilities, open LED protection, and operates within a temperature range of -40°C to +125°C TJ in a 32-lead QFN package.

LED Driver IC Feature Summary

• Integrates 16 independent constant-current sink channels for uniform LED driving
• Supports multiple DC/DC converter topologies including Boost, Buck, and SEPIC
• Enables precise control via combined analog and pulse-width modulation dimming
• Includes built-in diagnostic features such as open LED protection

LED Driver IC Applications

• High-brightness LED backlighting systems
• Industrial and automotive LED lighting arrays
• General illumination fixtures requiring multi-channel control

LED Driver IC Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing. Confirm that the IUH designation corresponds to the industrial temperature grade (-40°C to +125°C). Ensure compatibility with the required 32-lead QFN footprint during PCB layout. Cross-reference the manufacturer's latest datasheet for any updates on pinout or electrical characteristics before finalizing procurement.

LED Driver IC Selection Notes

Select this component when designing systems requiring simultaneous control of up to 16 LED strings. It is suitable for applications needing flexible topology options beyond simple boost converters. Consider the 10 A output current capability and wide input voltage range for robust power stage design. Evaluate thermal management requirements given the dense QFN package and high channel count.

LED Driver IC Part Context

This part belongs to the LT3754 series of LED drivers from Analog Devices. It complements other models like the LT3755 and LT3757 by offering a higher channel count focused on display and lighting applications. The series emphasizes precision current matching and flexible control interfaces for complex LED architectures.

LED Driver IC Replacement Considerations

Direct substitutes include LT3754EUH#TRPBF for commercial temperature grade variants. Check LT3755IUD-1#PBF or LT3755IUD-2#PBF if single-channel flexibility is preferred over multi-channel integration. Verify package dimensions and pin assignments match existing designs before substitution.