LT3761AEMSE#WTRPBF

LED Driver IC Overview

The LT3761AEMSE#WTRPBF is a DC/DC controller designed for LED lighting applications, manufactured by Analog Devices Inc. It operates with an input voltage range of 4.5V to 60V and supports output voltages up to 100V. The device features a programmable internal PWM generator and supports switching frequencies from 100kHz to 1MHz. It accommodates multiple topologies including Boost, Buck, Buck-Boost, Flyback, and SEPIC. The component provides 10A output current capability and includes open LED protection. It is housed in a 16-lead MSOP package with an exposed pad and functions within a temperature range of -40°C to +125°C.

LED Driver IC Feature Summary

• Integrates a programmable internal PWM generator for precise dimming control without external components
• Supports versatile converter topologies including Boost, Buck, Buck-Boost, Flyback, and SEPIC configurations
• Provides analog and PWM dimming capabilities via CTRL input for flexible brightness management

LED Driver IC Applications

• High-power LED lighting drivers
• Industrial illumination systems
• Automotive LED headlamps
• General constant-current LED regulation

LED Driver IC Procurement Notes

Verify the specific suffix #WTRPBF indicates tape-and-reel packaging when sourcing this component. Confirm that the LT3761A variant matches design requirements regarding internal PWM generation versus the standard LT3761. Ensure compatibility with the 16-MSOP-EP package footprint during PCB layout. Cross-reference official Analog Devices documentation for the latest electrical specifications and thermal performance data before finalizing procurement.

LED Driver IC Selection Notes

Select this controller for designs requiring high input voltage tolerance up to 60V and output voltages reaching 100V. The integrated PWM generator simplifies circuitry by eliminating the need for external dimming signal generators. Consider the MSOP-16 package size for space-constrained applications. Verify that the required switching frequency range between 100kHz and 1MHz aligns with passive component selection goals.

LED Driver IC Part Context

This part belongs to the LT3761 family of LED controllers from Analog Devices. It serves as a constant-current source and constant-voltage regulator. The LT3761A variant specifically enhances functionality with an internal PWM generator. It is distinct from general-purpose power supplies, focusing exclusively on LED driver architectures and high-efficiency DC/DC conversion tasks.

LED Driver IC Replacement Considerations

LT3761EMSE#TRPBF

LED Driver IC FAQ

Does the LT3761A generate its own PWM signal?

Yes, the LT3761A features a programmable internal PWM generator capable of producing dimming signals.

What is the maximum output voltage supported?

The device supports output voltages up to 100V.