LT3956IUHE#PBF

LED Driver IC Overview

The LT3956IUHE#PBF is a high-voltage DC/DC converter designed for constant-current and constant-voltage regulation. It supports input voltages from 5V to 80V and delivers up to 3.3A switch current with an output capability of 80V. Operating at a switching frequency between 100kHz and 1MHz, it features analog and PWM dimming control. The device is housed in a compact 36-lead QFN (5x6mm) package and operates within a temperature range of -40°C to +125°C.

LED Driver IC Feature Summary

• Supports multiple topologies including Boost, Buck, Buck-Boost, Flyback, and SEPIC configurations
• Enables precise LED control through integrated analog and pulse-width modulation dimming capabilities
• Provides robust protection and regulation for high-power lighting applications

LED Driver IC Applications

• High-power LED driver circuits
• Battery charger systems
• Voltage regulator modules

LED Driver IC Procurement Notes

Verify the specific suffix #PBF indicates tube packaging versus #TRPBF for reel packaging when sourcing. Confirm RoHS compliance status directly with Analog Devices documentation. Ensure the QFN-36 thermal pad soldering process meets design guidelines for reliable operation under high current conditions.

LED Driver IC Selection Notes

Select this component for designs requiring wide input voltage ranges up to 80V. Choose based on the need for combined constant-current and constant-voltage regulation modes. Consider the 36-QFN package for space-constrained layouts requiring efficient heat dissipation for high-output currents.

LED Driver IC Part Context

This part belongs to the LT3956 series of high-input voltage DC/DC converters. It shares architectural similarities with the LT3958 but differs in specific output ratings and configuration options. The series targets industrial and automotive lighting applications requiring high reliability and efficiency.

LED Driver IC Replacement Considerations

LT3956IUHE#TRPBF serves as the tape-and-reel variant of this component. Verify pinout compatibility if substituting with other high-voltage LED drivers from the manufacturer's portfolio.