LT3599EUH#PBF

LED Driver IC Overview

The LT3599EUH#PBF is a fixed frequency 2A step-up DC/DC converter designed to drive four strings of LEDs. It supports up to 44V output voltage and delivers 120mA per channel with ±1.5% current matching. The device operates at a switching frequency between 200kHz and 2.1MHz. It accepts input voltages from 3.1V to 30V and features analog and PWM dimming capabilities. The operating junction temperature range is -40°C to 125°C. The component is housed in a 32-pin QFN package with an exposed pad.

LED Driver IC Feature Summary

• Integrates a high-efficiency step-up DC/DC converter for multi-string LED driving
• Provides precise current regulation with tight matching across all four channels
• Supports flexible brightness control through both analog and pulse-width modulation dimming methods

LED Driver IC Applications

• Automotive interior lighting systems
• White backlighting applications
• High-brightness LED arrays requiring uniform current distribution

LED Driver IC Procurement Notes

Verify the exact part number suffix against official Analog Devices documentation to ensure correct package type and temperature rating. Confirm that the requested variant matches the specific electrical characteristics required for the target application, particularly regarding the current matching tolerance and operating temperature range.

LED Driver IC Selection Notes

Select this component when designing circuits that require independent control of multiple LED strings with high current accuracy. Ensure the input voltage source falls within the specified 3.1V to 30V range. Consider the thermal performance of the 32-QFN package with exposed pad for adequate heat dissipation in high-power density designs.

LED Driver IC Part Context

This part belongs to the LT3599 family of LED drivers manufactured by Analog Devices. It is specifically engineered for applications demanding high reliability and precise current regulation. The EUH designation indicates the specific package configuration and temperature grade suitable for industrial and automotive environments.

LED Driver IC Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit layouts and thermal management solutions before considering alternative components.