LT3922HUFD#TRPBF

LED Driver IC Overview

The LT3922HUFD#TRPBF is a monolithic synchronous step-up DC/DC converter designed for driving strings of LEDs. It operates with a fixed-frequency peak current control architecture and supports analog or PWM dimming via the CTRL pin. The device delivers up to 2.3A output current and functions within an input voltage range of 2.8V to 36V. Switching frequency is adjustable from 200kHz to 2MHz. It is housed in a 28-lead QFN (4x5) package and rated for operation between -40°C and 150°C.

LED Driver IC Feature Summary

• Synchronous boost topology for high-efficiency LED string driving
• Supports both analog voltage and PWM dimming control methods
• Fixed-frequency peak current mode control for stable regulation
• Wide operating temperature range suitable for harsh environments

LED Driver IC Applications

• General LED lighting systems
• Display backlighting applications
• Indicator lighting circuits

LED Driver IC Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when ordering. Confirm that the component is sourced directly from Analog Devices Inc. or authorized distributors to ensure authenticity. Check for any End-of-Life notifications or Product Change Notifications associated with this part number prior to final procurement decisions.

LED Driver IC Selection Notes

Select this component when a synchronous boost driver with wide input voltage capability is required. Ensure the application demands a switching frequency within the 200kHz to 2MHz range. Verify that the thermal requirements align with the 28-QFN package characteristics and the specified junction temperature limits for the intended environment.

LED Driver IC Part Context

This part belongs to the LT3922 family of LED drivers from Analog Devices Inc. It shares architectural similarities with other models in the series but is distinguished by its specific output current rating, package type, and manufacturing lot codes indicated by the suffix. It serves as a specialized solution for high-power LED applications requiring precise current control.

LED Driver IC Replacement Considerations

Consult official Analog Devices documentation for direct cross-reference recommendations. No public substitute part numbers are confirmed in the provided source material. Verify compatibility with existing PCB footprints and control signal interfaces before considering alternative components.