LT3922HUFD-1#PBF

LED Driver IC Overview

The LT3922HUFD-1#PBF is a monolithic, synchronous step-up DC/DC converter designed for LED lighting applications. It features fixed-frequency peak current control and supports PWM dimming for string configurations. The device operates with an input voltage range of 2.8 V to 36 V and delivers up to 2 A output current. It utilizes a QFN-28 package and functions within a temperature range of -40°C to +150°C. The switching frequency is adjustable from 200 kHz to 2 MHz.

LED Driver IC Feature Summary

• Monolithic synchronous boost topology for high-efficiency LED driving
• Integrated PWM dimming capability for precise brightness control
• Fixed-frequency peak current mode control for stable operation
• Wide input voltage range supporting various power supply sources

LED Driver IC Applications

• High-power LED string drivers
• Industrial LED lighting systems
• Automotive exterior lighting modules
• General-purpose high-voltage LED arrays

LED Driver IC Procurement Notes

Verify the specific suffix HUFD-1 against official Analog Devices documentation to confirm pinout and electrical characteristics match your design requirements. Ensure compatibility with the intended thermal management solution given the QFN-28 package. Confirm RoHS compliance status through the manufacturer's latest certification documents before finalizing procurement.

LED Driver IC Selection Notes

Select this component when a single-channel synchronous boost driver is required for high-current LED strings. Consider the wide operating temperature range and integrated protection features for harsh environments. Evaluate the external component count and PCB space constraints associated with the QFN-28 package during the initial design phase.

LED Driver IC Part Context

This part belongs to the LT3922 family of LED drivers from Analog Devices. It shares core architecture with other variants in the series but differs in specific electrical ratings and packaging options. The family is designed to provide flexible solutions for various LED lighting topologies and power requirements.

LED Driver IC Replacement Considerations

Consult official substitution guides for compatible parts such as the LT3922EUFD-1#PBF or LT3922IUFD-1#PBF. Verify that alternative packages or temperature grades meet the original design specifications without requiring circuit redesign.