LT3496EUFD#PBF

LED Driver IC Overview

The LT3496EUFD#PBF is a triple-output DC/DC converter designed for high-current LED driving applications. It integrates three independent driver channels, each capable of delivering up to 700 mA with a 45 V switch rating. The device supports Buck, Boost, and Buck-Boost topologies and operates on an input voltage range of 3 V to 30 V. Switching frequency is adjustable from 330 kHz to 2.1 MHz. It features True Color PWM dimming with a ratio up to 3000:1 and includes open LED protection. The component is housed in a QFN-28 package and functions within a temperature range of -40°C to +125°C.

LED Driver IC Feature Summary

• Integrates three independent constant-current driver channels with built-in gate drivers for external PMOS LED disconnect switches.
• Supports flexible topology operation including Buck, Boost, and Buck-Boost modes to accommodate various LED string configurations.
• Provides precise color mixing and dimming control via True Color PWM technology with a high dimming ratio capability.

LED Driver IC Applications

• RGB lighting systems requiring independent channel control
• Automotive exterior and interior illumination
• Military and aviation lighting fixtures
• Large-scale display and billboard backlighting

LED Driver IC Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and RoHS adherence before procurement. Confirm availability status as supply may be limited or subject to factory special orders. Ensure the QFN-28 package footprint matches the target PCB design. Validate that the operating voltage and current requirements align with the specified 3 V to 30 V input and 700 mA output limits.

LED Driver IC Selection Notes

Select this component when designing multi-channel LED drivers requiring independent regulation per channel. It is suitable for applications needing wide input voltage ranges and flexible converter topologies. Consider the thermal performance of the QFN-28 package for high-power implementations. Ensure external components are rated for the maximum 45 V switch voltage and appropriate current levels.

LED Driver IC Part Context

This part belongs to the LT3496 series of triple-output LED drivers manufactured by Analog Devices Inc. It is distinct from single-output controllers like the LT3796 or other multi-channel regulators such as the LT3694. The EUFD suffix denotes the specific temperature grade and packaging variant within the broader product family.

LED Driver IC Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative triple-output LED drivers from the manufacturer if direct substitution is required, ensuring compatibility with the QFN-28 package and electrical specifications.