LT3761AIMSE#WPBF

LED Driver IC Overview

The LT3761AIMSE#WPBF is a DC/DC controller designed for LED lighting applications, operating as a constant-current source and constant-voltage regulator. It supports multiple topologies including Boost, Buck, Buck-Boost, Flyback, and SEPIC. The device accepts an input voltage range of 4.5 V to 60 V and delivers up to 10 A output current with adjustable output voltage. Operating at a frequency of 1 MHz, it features internal PWM dimming generation and open LED protection. Packaged in a 16-lead MSOP, it functions within a temperature range of -40°C to +125°C.

LED Driver IC Feature Summary

• Integrates programmable internal PWM dimming signal generation for precise control without external components
• Supports versatile power conversion topologies including Boost, Buck, Buck-Boost, Flyback, and SEPIC configurations
• Provides high-efficiency operation with integrated open LED protection and short-circuit safeguards

LED Driver IC Applications

• Automotive headlamp systems requiring high efficiency and precise dimming
• General-purpose LED lighting drivers utilizing boost or buck-boost architectures
• Industrial illumination systems demanding wide input voltage ranges

LED Driver IC Procurement Notes

Verify the specific suffix #WPBF indicates tube packaging when ordering. Confirm the 'A' grade designation meets required temperature and performance specifications. Ensure the MSOP-16 package footprint aligns with the target PCB layout. Cross-reference the manufacturer's latest datasheet for any updates on RoHS compliance or pinout definitions prior to final procurement.

LED Driver IC Selection Notes

Select this component when designing circuits requiring a single controller to support multiple converter topologies. The internal PWM generator simplifies design by eliminating external timing components for dimming applications. Consider the 1 MHz switching frequency for balancing component size against efficiency. Verify that the 60 V maximum input rating accommodates the highest expected supply voltage transients in the application environment.

LED Driver IC Part Context

This part belongs to the LT3761 family of LED controllers from Analog Devices. The series is characterized by its ability to drive LEDs with high precision across various power stages. The LT3761A variant typically offers enhanced performance specifications compared to standard versions, focusing on reliability and thermal management in compact packages.

LED Driver IC Replacement Considerations

Direct substitutes include other parts within the LT3761 family such as the LT3761IMSE-1 or LT3761EMSE-1, depending on specific topology requirements like SEPIC or Boost-only configurations. Verify pin compatibility and electrical parameters before substitution.