LT3746EUHH#TRPBF

LED Driver IC Overview

The LT3746EUHH#TRPBF is a DC-DC controller integrating a 32-channel LED driver with a 55V buck converter. It supports input voltages from 6V to 55V and delivers up to 30mA per channel at 13V. The switching frequency ranges from 205Hz to 1.05MHz. Operating temperature spans -40°C to 125°C TJ. Packaged in a 56-WFQFN (5x9) exposed pad, it enables high-density backlight and signage solutions.

LED Driver IC Feature Summary

• Integrates a 32-channel constant current LED driver with a synchronous buck controller
• Supports PWM dimming for precise brightness control across all channels
• Operates within a wide input voltage range suitable for various power architectures

LED Driver IC Applications

• LCD backlight systems for displays
• Signage and advertising boards
• High-density LED lighting arrays

LED Driver IC Procurement Notes

Verify the #TRPBF suffix confirms tape-and-reel packaging rather than tube. Confirm the 56-WFQFN footprint matches PCB layout requirements. Ensure thermal management accounts for the exposed pad design. Validate that the 55V maximum rating aligns with system input conditions. Check RoHS compliance status for environmental regulations.

LED Driver IC Selection Notes

Select this component when designing multi-channel LED drivers requiring integrated buck regulation. It suits applications needing uniform current distribution across 32 outputs. Consider the 55V input limit for higher voltage bus systems. Evaluate thermal performance due to high channel density. Compare against single-channel controllers if fewer outputs suffice.

LED Driver IC Part Context

Part of Analog Devices' LT3746 family, designed for high-efficiency LED driving. Combines power stage control with precision current regulation. Targets compact form factors in display and lighting industries. Utilizes advanced QFN packaging for improved thermal dissipation and space savings.

LED Driver IC Replacement Considerations

LT3746EUHH#PBF offers identical electrical specifications but uses tube packaging instead of tape-and-reel. Verify package compatibility before substitution.