LT3496EFE#PBF

LED Driver IC Overview

The LT3496EFE#PBF is a triple output DC/DC converter designed for constant-current LED driving applications. It features three independent regulators with built-in gate drivers for external P-channel MOSFETs, supporting PWM dimming ratios up to 3000:1. The device operates in buck, boost, or buck-boost topologies with an input voltage range of 3V to 30V and a maximum output current of 700mA per channel. Switching frequency is adjustable from 330kHz to 2.1MHz. It includes open LED protection and overtemperature shutdown capabilities within a QFN-28 package.

LED Driver IC Feature Summary

• Supports True Color PWM dimming with ratios up to 3000:1 for precise color mixing
• Integrates gate drivers for external PMOS LED disconnect switches
• Operates in buck, boost, or buck-boost modes for flexible LED string configurations
• Includes built-in open LED protection and thermal shutdown

LED Driver IC Applications

• RGB lighting systems requiring precise color control
• Automotive exterior and interior illumination
• Military and aviation lighting fixtures
• Large outdoor display and billboard signage
• High-power LED arrays with independent channel regulation

LED Driver IC Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm the specific suffix #PBF indicates lead-free packaging compliance. Request official datasheets and material declarations to ensure RoHS adherence. Validate supply chain integrity due to potential limited availability status. Cross-reference ordering part numbers with manufacturer catalogs to avoid counterfeit risks.

LED Driver IC Selection Notes

Select this component when independent regulation of three distinct LED channels is required. Ensure the application demands high dimming ratios for accurate color rendering. Verify that the input voltage range aligns with the 3V to 30V specification. Consider the QFN-28 package for thermal management requirements. Evaluate if the adjustable switching frequency meets EMI constraints for the target environment.

LED Driver IC Part Context

This part belongs to the LT3496 series of triple-output LED driver ICs manufactured by Analog Devices. It is specifically engineered for applications needing simultaneous control of multiple LED strings. The series supports various topologies to accommodate different LED forward voltage configurations. It represents a solution for complex lighting designs requiring high precision and reliability.

LED Driver IC Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.