LT3922EUFD-1#PBF

LED Driver IC Overview

The LT3922EUFD-1#PBF is a monolithic, synchronous step-up DC/DC converter designed for LED lighting applications. It features a wide input voltage range from 2.8V to 36V and delivers an output current of up to 2.3A. The device operates at a switch frequency between 200kHz and 2MHz, utilizing fixed-frequency peak current control. It supports PWM dimming and includes open LED protection. The component is housed in a QFN-28 package and functions within a temperature range of -40°C to +125°C.

LED Driver IC Feature Summary

• Synchronous boost topology with integrated power switches
• Wide input voltage capability supporting various power sources
• High-resolution PWM dimming interface for brightness control
• Built-in protection mechanisms including open LED detection

LED Driver IC Applications

• General LED lighting systems
• Automotive interior lighting
• Industrial illumination fixtures
• Portable high-power LED devices

LED Driver IC Procurement Notes

Verify the specific suffix '-1' against official Analog Devices documentation to confirm pinout and functional variations compared to standard variants. Ensure the QFN-28 package thermal requirements are met in the target design. Cross-reference the datasheet revision date to validate parameter accuracy before finalizing procurement specifications.

LED Driver IC Selection Notes

Select this component when a wide input voltage range and high output current are required for single-string LED applications. Consider the 200kHz to 2MHz adjustable switching frequency for optimizing external component size versus efficiency. Evaluate the thermal performance of the QFN-28 package relative to the expected ambient operating conditions and PCB layout constraints.

LED Driver IC Part Context

This part belongs to the LT3922 series of synchronous step-up converters from Analog Devices. It is specifically engineered for driving LED strings where precise current regulation and dimming capabilities are essential. The EUFD-1 designation indicates a specific package and variant configuration within the broader product family.

LED Driver IC Replacement Considerations

LT3922EUFD#PBF

LED Driver IC FAQ

What type of dimming does the LT3922EUFD-1#PBF support?

The device supports PWM dimming for controlling LED brightness.

What is the maximum output current of this converter?

The maximum output current per channel is 2.3A.