LT3599IFE#TRPBF

LED Driver IC Overview

The LT3599IFE#TRPBF is a fixed frequency step-up DC/DC converter designed to drive four strings of LEDs. It supports an input voltage range from 3.1 V to 30 V and delivers up to 120 mA output current per channel with ±1.5% current matching. The device operates at a programmable switching frequency between 200 kHz and 2.1 MHz, enabling outputs up to 44 V. It features PWM and analog dimming capabilities, open LED protection, and functions within a temperature range of -40°C to +125°C in a 28-lead TSSOP package.

LED Driver IC Feature Summary

• Provides precise current regulation for four independent LED strings with high matching accuracy
• Supports both pulse width modulation and analog dimming control via dedicated pins
• Maintains accurate LED current regulation even when input voltage exceeds output voltage
• Includes built-in protection mechanisms such as open LED detection

LED Driver IC Applications

• LED lighting driver circuits requiring multi-string configuration
• Portable illumination devices utilizing boost topology
• Automotive interior lighting systems
• General purpose LED backlighting applications

LED Driver IC Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging rather than tube packaging when sourcing components. Confirm that the manufacturer Analog Devices Inc. is the original source for the part number LT3599IFE#TRPBF. Ensure compatibility with 28-TSSOP-EP surface mount assembly processes. Check for any recent product change notifications regarding epoxy or material declarations before final procurement decisions.

LED Driver IC Selection Notes

Select this component when designing circuits requiring four synchronized LED channels with tight current matching specifications. Consider the wide input voltage range suitable for battery-powered or variable supply applications. Evaluate the programmable frequency range to optimize external component sizes while managing electromagnetic interference. Ensure thermal management strategies align with the specified operating temperature limits for the target environment.

LED Driver IC Part Context

This part belongs to the LT3599 series of LED drivers manufactured by Analog Devices Inc. It is specifically engineered for applications demanding high efficiency and precise current control across multiple LED strings. The device integrates internal switches and control logic to simplify design complexity compared to discrete solutions.

LED Driver IC Replacement Considerations

LT3599EFE#TRPBF serves as a verified alternative variant within the same family, differing primarily in packaging format.