LT3952AHFE#TRPBF

LED Driver IC Overview

The LT3952AHFE#TRPBF is a high-efficiency, current-mode step-up DC/DC converter designed for driving high-power LEDs. It features an internal 60V, 80mΩ DMOS power switch capable of delivering up to 4A of output current. The device operates with an input voltage range of 3V to 42V and supports switching frequencies from 215kHz to 3MHz. It provides a maximum output voltage of 60V and includes open LED protection. The component is housed in a 28-TSSOP-EP package and offers analog and PWM dimming capabilities.

LED Driver IC Feature Summary

• Integrates a 60V, 80mΩ DMOS power switch for high-current LED drive applications
• Supports wide input voltage range from 3V to 42V for flexible power supply options
• Enables precise light control through combined analog and PWM dimming interfaces
• Includes built-in open LED protection to safeguard the driver and load

LED Driver IC Applications

• Automotive exterior lighting systems
• High-power LED backlighting solutions
• Industrial LED illumination fixtures
• General-purpose high-brightness LED drivers

LED Driver IC Procurement Notes

Verify that the specific suffix #TRPBF corresponds to the Tape and Reel packaging format rather than the Tube variant. Confirm the operating temperature grade matches the required environmental conditions, as automotive-grade variants may differ from standard industrial versions. Ensure the 28-TSSOP-EP exposed pad thermal requirements are addressed in the PCB layout design to maintain reliability under full load conditions.

LED Driver IC Selection Notes

Select this component when a single-channel boost topology is required for high-power LED strings. It is suitable for designs needing a wide input voltage range up to 42V and output voltages up to 60V. Consider the 28-TSSOP-EP package for its thermal performance and pin count. Evaluate the switching frequency range against EMI constraints and inductor size requirements for the specific application.

LED Driver IC Part Context

This part belongs to the LT3952 series of improved LED drivers from Analog Devices. It is a current-mode step-up converter specifically engineered for high-power LED applications. The series is known for integrating a robust power switch and comprehensive protection features within a compact surface-mount package, targeting demanding lighting environments.

LED Driver IC Replacement Considerations

LT3952AIFE#TRPBF: Same electrical specifications but in Tape & Reel packaging instead of Tube.