LT3932EUFD-1#TRPBF

LED Driver IC Overview

The LT3932EUFD-1#TRPBF is a monolithic synchronous step-down LED driver IC from Analog Devices Inc., designed for high-efficiency LED lighting applications. It operates with an input voltage range of 3.6 V to 36 V and delivers a regulated output current of up to 2 A. The device features an adjustable switching frequency between 200 kHz and 2 MHz, allowing optimization for external component size and efficiency. It supports PWM dimming for precise brightness control and includes open LED protection. The IC is housed in a compact 28-lead QFN (4x5 mm) package with an exposed thermal pad, suitable for surface-mount assembly across an operating temperature range of -40°C to +125°C.

LED Driver IC Feature Summary

• Synchronous buck topology for high conversion efficiency
• Integrated PWM dimming capability for linear brightness control
• Open LED protection circuitry to prevent damage during faults
• Adjustable switching frequency to optimize passive component selection

LED Driver IC Applications

• General LED lighting systems
• Display backlight drivers
• Automotive interior lighting
• Portable device illumination

LED Driver IC Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing. Confirm the -1 variant designation matches design requirements regarding internal resistor values or pin configurations compared to standard versions. Ensure ESD precautions are observed during handling due to the exposed thermal pad design. Cross-reference datasheet revisions to ensure compatibility with existing bill of materials.

LED Driver IC Selection Notes

Select this component when a single-channel, high-current LED driver is required within a 36V input limit. The adjustable frequency allows designers to balance electromagnetic interference against inductor size. Consider the thermal performance of the 28-QFN package relative to the expected ambient temperature and heat dissipation constraints in the final enclosure design.

LED Driver IC Part Context

This part belongs to the LT3932 family of LED drivers, which are optimized for constant current regulation. The EUFD package denotes a specific 28-lead QFN footprint with a 4x5 mm body size. The -1 suffix typically distinguishes internal reference tolerances or specific pinout variations within the broader product line, requiring careful comparison with the primary LT3932EUFD#PBF model.

LED Driver IC Replacement Considerations

LT3932EUFD#PBF is the tube-packaged equivalent of the same functional device. LT3932EUFD-1#PBF offers identical electrical characteristics in tube packaging. Verify that any substitute maintains the 2A output current capability and 36V maximum input rating to ensure system integrity.