LT3761AEMSE#WPBF

LED Driver IC Overview

The LT3761AEMSE#WPBF is a high-voltage LED controller designed for constant-current and constant-voltage regulation. It accepts an input voltage range of 8V to 60V, with an undervoltage lockout threshold at 8V and a rising turn-on point at 9.1V. The device drives up to 60V of LEDs at a maximum output current of 1A when the input voltage is lower than the LED string voltage. It features a programmable internal PWM generator capable of producing accurate dimming waveforms with a brightness ratio of up to 25:1 without external components.

LED Driver IC Feature Summary

• Generates its own PWMOUT waveform for precise internal PWM dimming
• Operates as both a constant-current source and constant-voltage regulator
• Supports load current sensing in either high-side or low-side configurations
• Provides additional analog dimming capability via the CTRL input

LED Driver IC Applications

• High-voltage LED lighting systems
• Automotive exterior lighting applications
• Industrial LED driver designs
• General-purpose DC/DC LED regulation

LED Driver IC Procurement Notes

Verify the specific suffix #WPBF indicates the tape-and-reel packaging format rather than a functional change. Confirm the operating temperature range of -40°C to 125°C matches your environmental requirements. Ensure the 16-lead MSOP package fits your board layout constraints. Cross-reference the manufacturer's latest datasheet for any updates on electrical characteristics or recommended operating conditions before finalizing procurement.

LED Driver IC Selection Notes

Select this component when a single-chip solution is required for high-voltage LED strings up to 60V. It is suitable for designs needing integrated PWM dimming without external microcontrollers. Consider the 1A current limit and 60V supply range against your specific LED array voltage and current needs. The surface-mount MSOP package is appropriate for automated assembly processes requiring compact footprints.

LED Driver IC Part Context

This part belongs to the LT3761 family of high-voltage LED controllers from Analog Devices. The base LT3761 provides the core functionality, while the LT3761A variant offers enhanced performance specifications. The EMSE designation refers to the 16-lead MSOP package, and #WPBF specifies the reel quantity and packaging style for manufacturing integration.

LED Driver IC Replacement Considerations

LT3761AEMSE#PBF is a confirmed public substitute offering identical electrical performance but in tube packaging instead of tape-and-reel. Verify that the mechanical footprint remains compatible if switching between these packaging options.