LT3964EUHE#TRPBF

LED Driver IC Overview

The LT3964EUHE#TRPBF is a dual synchronous buck LED driver from Analog Devices Inc. It features two independent 1.6A channels with a wide input voltage range of 4V to 36V. The device integrates an I2C interface for internal true digital control and supports PWM dimming. Designed for high efficiency, it utilizes fixed-frequency peak current mode topology. The component is housed in a 36-pin QFN package measuring 5x6 mm, suitable for compact LED lighting applications.

LED Driver IC Feature Summary

• Dual independent synchronous buck converters providing up to 1.6A per channel
• Integrated I2C interface enabling true digital control of internal parameters
• Supports PWM dimming for precise brightness adjustment
• Fixed-frequency peak current mode operation ensures stable performance across wide input and output voltage ranges

LED Driver IC Applications

• LED lighting systems requiring dual-channel constant current or constant voltage sources
• Display backlighting drivers needing digital control interfaces
• Indicator circuits utilizing synchronized buck conversion topologies
• Automotive or industrial LED arrays operating within 4V to 36V input constraints

LED Driver IC Procurement Notes

Verify the specific suffix 'EUHE' against the official datasheet to confirm the temperature grade and package variant. Ensure the ordering part number matches the exact tape-and-reel configuration required for your assembly process. Cross-reference the manufacturer's lifecycle status, as this component may be subject to obsolescence notices or process change notifications affecting availability and specifications.

LED Driver IC Selection Notes

Select this component when dual isolated or common-ground LED strings require independent current regulation via a digital bus. The I2C capability allows for dynamic adjustment of current limits and dimming ratios without additional GPIO pins. Consider the 36QFN thermal pad requirements for adequate heat dissipation in high-power density designs compared to single-channel alternatives.

LED Driver IC Part Context

This part belongs to the LT3964 family of dual synchronous buck LED drivers. It shares architectural similarities with other ADI LED controllers but distinguishes itself through integrated I2C digital control rather than analog voltage or current inputs. The EUHE designation typically indicates a specific commercial or extended temperature range variant within the broader LT3964 product line.

LED Driver IC Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Users should consult Analog Devices Inc. directly for qualified replacements or check for updated series components that maintain I2C compatibility and dual-channel architecture.