LT3599EFE#TRPBF

LED Driver IC Overview

The LT3599EFE#TRPBF is a fixed frequency step-up DC/DC converter designed to drive four strings of LEDs. It provides up to 120mA output current per channel with ±1.5% current matching accuracy. The device supports an input voltage range of 3.1V to 5.5V and can deliver up to 44V output voltage. Switching frequency is programmable from 200kHz to 2.1MHz via an external resistor. It features analog dimming on the CTRL pin and PWM dimming on the PWM pin. The component operates within a junction temperature range of -40°C to 125°C and is housed in a 28-TSSOP-EP package.

LED Driver IC Feature Summary

• Four-channel LED driver with high current matching accuracy
• Supports both analog and pulse width modulation dimming methods
• Programmable switching frequency for flexible design options
• Maintains accurate regulation even when input exceeds output voltage

LED Driver IC Applications

• Automotive lighting systems requiring precise current control
• High-efficiency LED backlighting solutions
• Industrial LED illumination applications
• Portable devices utilizing multi-string LED arrays

LED Driver IC Procurement Notes

Verify the specific suffix TRPBF indicates tape and reel packaging when sourcing. Confirm that the part number matches the exact Analog Devices specification for automotive-grade or standard industrial variants as required by your design. Ensure compatibility with the 28-TSSOP-EP footprint during procurement validation.

LED Driver IC Selection Notes

Select this component when designing circuits requiring independent control of four LED strings with tight current matching. It is suitable for applications needing wide input voltage ranges and high efficiency. Consider the programmable frequency range if EMI constraints or component size limitations are critical factors in the power supply design.

LED Driver IC Part Context

This part belongs to the LT3599 series, which focuses on high-efficiency LED driving solutions. It integrates a 2A switch and control circuitry into a single compact package. The series is known for its ability to regulate LED current accurately across varying load conditions and input voltages.

LED Driver IC Replacement Considerations

LT3599EFE#PBF is a confirmed non-lead-free alternative with identical electrical specifications but different packaging format.