LT3964HUHE#PBF

LED Driver IC Overview

The LT3964HUHE#PBF is a dual-channel synchronous buck LED driver manufactured by Analog Devices Inc. It operates with an input voltage range from 4V to 36V and delivers up to 1.6A of output current per channel. The device features a programmable switching frequency between 200kHz and 2MHz, supporting synchronization with an external clock. Control is managed via an I2C interface, enabling precise dimming and configuration. The component is housed in a 36-lead QFN package with an exposed pad, designed for thermal efficiency in compact lighting applications.

LED Driver IC Feature Summary

• Dual independent synchronous buck channels for multi-zone LED control
• I2C digital interface for programmable frequency, dimming, and fault monitoring
• Wide input voltage range supporting various power supply configurations
• External clock synchronization capability for noise reduction

LED Driver IC Applications

• Automotive interior and exterior LED lighting systems
• Industrial display backlighting arrays
• Architectural LED accent lighting controllers
• High-efficiency general illumination drivers

LED Driver IC Procurement Notes

Verify availability status as the LT3964HUHE#PBF may be listed as obsolete or limited supply by distributors. Confirm package integrity and pinout compatibility before integration. Request official datasheets and application notes from Analog Devices for latest design guidelines. Ensure I2C address configuration matches system requirements to avoid bus conflicts during procurement validation.

LED Driver IC Selection Notes

Select this component when dual-channel synchronous buck topology is required for high-efficiency LED driving. The I2C interface suits designs needing digital control over brightness and fault states. Consider the 36QFN package for thermal management needs. Evaluate the 1.6A current limit against specific LED string requirements. Compare against non-synchronous alternatives if cost is critical but efficiency is secondary.

LED Driver IC Part Context

This part belongs to the LT3964 family of LED drivers, which are optimized for automotive and industrial lighting. It shares architectural similarities with other Analog Devices LED controllers but distinguishes itself through its dual-channel synchronous design and comprehensive I2C control set. The HUHE suffix indicates the specific package type and temperature rating suitable for demanding environments.

LED Driver IC Replacement Considerations

Check Analog Devices documentation for direct cross-references or updated replacements for obsolete parts. Verify that any substitute maintains the same 36QFN footprint and I2C command set to minimize PCB redesign efforts. Ensure electrical parameters such as max current and voltage ratings meet or exceed original specifications.