LT3952AIFE#PBF

LED Driver IC Overview

The LT3952AIFE#PBF 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 within a supply voltage range of 3V to 42V and supports switching frequencies from 200kHz to 3MHz. It utilizes the True Color PWM™ technology for precise dimming control via analog or PWM signals. Packaged in a 28-lead TSSOP with an exposed pad, it ensures robust thermal performance across an operating temperature range of -40°C to +125°C.

LED Driver IC Feature Summary

• Integrates a high-voltage 60V DMOS power switch for efficient boost topology operation
• Supports wide input voltage range suitable for single-cell lithium battery applications
• Enables precise LED brightness control through True Color PWM™ dimming technology
• Offers flexible switching frequency selection to optimize external component size

LED Driver IC Applications

• Automotive exterior lighting systems
• High-power LED backlighting modules
• Industrial illumination fixtures
• Portable high-lumen flashlights

LED Driver IC Procurement Notes

Verify component authenticity by checking the manufacturer's marking code and lot number against official Analog Devices documentation. Confirm that the package matches the specified 28-TSSOP form factor with an exposed thermal pad. Ensure storage conditions comply with moisture sensitivity levels prior to soldering. Cross-reference the specific suffix #PBF to confirm lead-free compliance and tape-and-reel or tube packaging status as required by assembly processes.

LED Driver IC Selection Notes

Select this component when designing boost converters requiring high output voltage up to 60V and significant current handling capabilities. It is suitable for applications demanding wide input voltage flexibility and precise color-consistent dimming. Consider the thermal requirements of the exposed pad package for high-power dissipation scenarios. Evaluate the need for external synchronization if operating near noisy environments at higher frequencies.

LED Driver IC Part Context

This part belongs to the LT3952 series of LED drivers, representing an improved version over the original LT3952. It shares the same functional architecture but offers enhanced performance characteristics. The family is designed for versatile LED driving applications where efficiency and reliability are critical. Other variants in the series may differ in pinout, package type, or specific electrical limits.

LED Driver IC Replacement Considerations

LT3952AIFE#TRPBF