LT3932IUFD-1#TRPBF

LED Driver IC Overview

The LT3932IUFD-1#TRPBF is a synchronous step-down LED driver IC from Analog Devices, designed for high-efficiency lighting applications. It features a wide input voltage range of 3.6 V to 36 V and supports an output current of up to 2 A. The device operates at adjustable switching frequencies between 200 kHz and 2 MHz, allowing optimization for size and efficiency. It utilizes a QFN-28 package and functions within a temperature range of -40°C to +125°C. The controller integrates internal switches and offers precise current regulation for single-channel LED strings.

LED Driver IC Feature Summary

• Synchronous buck topology with integrated power switches for high efficiency
• Wide input voltage capability supporting various supply configurations
• Adjustable switching frequency for flexible filter component selection
• Precision constant current regulation for consistent LED brightness

LED Driver IC Applications

• General illumination LED drivers
• Automotive exterior lighting systems
• Industrial area lighting fixtures
• Portable battery-powered lighting devices

LED Driver IC Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when ordering. Confirm that the UFD variant matches the required thermal pad configuration and pinout compatibility for your PCB layout. Ensure the operating temperature grade meets your environmental requirements. Cross-reference the manufacturer datasheet for latest mechanical dimensions and soldering recommendations before finalizing the design.

LED Driver IC Selection Notes

Select this component when a single-channel, high-current LED driver is required with a wide input voltage range. The adjustable frequency feature allows designers to minimize external inductor and capacitor sizes. Consider the thermal performance of the QFN-28 package relative to the expected load current and ambient conditions. Verify that the control interface aligns with the system's dimming or enable requirements.

LED Driver IC Part Context

This part belongs to the LT3932 family of monolithic synchronous step-down LED drivers. The LT3932 series is engineered for driving multiple LEDs in series from a wide input voltage range. The -1 suffix typically denotes specific control features or trim settings within the family. The TRPBF suffix specifies the reel packaging format for automated assembly processes.

LED Driver IC Replacement Considerations

Direct replacements include other parts within the LT3932 family such as the LT3932IUFD#TRPBF if the -1 specific control parameters are not critical. Check for equivalent packages like QFN-28 from other manufacturers offering similar current ratings and input voltage ranges. Ensure thermal dissipation capabilities match the original design constraints.