LT3763HFE#TRPBF

LED Driver IC Overview

The LT3763HFE#TRPBF is a fixed frequency, synchronous step-down DC/DC controller designed for high-current LED driving applications. It accurately regulates output currents up to 20A using average current mode control. The device supports input voltages from 10V to 60V and provides an output voltage range of 0V to 55V. Operating frequencies are adjustable between 200kHz and 1MHz. It features PWM dimming capability and is housed in a 28-TSSOP-EP package.

LED Driver IC Feature Summary

• Synchronous buck topology with integrated average current mode control for precise regulation
• Supports wide input voltage range up to 60V and output voltage up to 55V
• Capable of regulating output currents up to 20A
• Includes PWM dimming interface for brightness control

LED Driver IC Applications

• High-power single LED drivers
• SLA battery chargers
• Industrial lighting systems
• Automotive lighting applications

LED Driver IC Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing components. Confirm the operating temperature range matches the required environmental conditions, as variants may differ between -40°C to 125°C and -40°C to 150°C junction temperatures. Ensure the supplier documentation explicitly references Analog Devices Inc. as the manufacturer to avoid counterfeit parts.

LED Driver IC Selection Notes

Select this component when designing circuits requiring high output current regulation up to 20A with a synchronous buck architecture. Consider the adjustable switching frequency range of 200kHz to 1MHz for EMI optimization. Verify that the external MOSFET selection aligns with the controller's drive capabilities and thermal requirements for the intended application load.

LED Driver IC Part Context

This part belongs to the LT3763 family of high-current step-down LED driver controllers. It shares core functionality with other variants like the LT3763IFE#PBF but differs in packaging and potentially thermal specifications. The HFE variant is specifically noted for automotive-grade reliability in some documentation contexts.

LED Driver IC Replacement Considerations

Direct substitutes include LT3763EFE#TRPBF and LT3763IFE#PBF. Verify pinout compatibility and thermal performance differences before substitution. Check if the alternative package type meets the PCB layout constraints of the existing design.