LT3755EMSE#WTRPBF

LED Driver IC Overview

The LT3755EMSE#WTRPBF is a DC/DC controller designed for driving high-current LEDs as a constant-current source. It features a fixed-frequency, current-mode architecture with an internal 7.15V regulator for low-side N-channel MOSFETs. The device supports wide input voltage ranges from 4.5V to 40V and output voltages up to 75V. It offers true color PWM dimming capabilities with ratios up to 3000:1. The component is housed in a 16-lead MSOP-EP package.

LED Driver IC Feature Summary

• Fixed-frequency current-mode control architecture
• Internal 7.15V regulator for external MOSFET drive
• High-resolution true color PWM dimming support

LED Driver IC Applications

• High-current LED lighting systems
• Automotive LED applications
• Display backlighting circuits

LED Driver IC Procurement Notes

Verify the specific suffix #WTRPBF against official Analog Devices documentation to confirm tape-and-reel packaging and RoHS compliance status. Ensure the MSOP-EP package variant matches the required thermal and pinout specifications for the target PCB layout. Cross-reference the part number with the manufacturer's active status list to confirm availability and production lifecycle stage before finalizing procurement orders.

LED Driver IC Selection Notes

Select this controller when a wide input voltage range of 4.5V to 40V is required alongside high output voltage capability up to 75V. The internal 7.15V supply simplifies gate drive requirements for external N-channel MOSFETs. Consider the 16-lead MSOP-EP package for space-constrained designs requiring efficient thermal dissipation through the exposed pad.

LED Driver IC Part Context

This component belongs to the LT3755 series of LED drivers manufactured by Analog Devices (formerly Linear Technology). The series includes various package options such as QFN and MSOP variants, catering to different thermal and spatial requirements. The EMSE designation specifically identifies the MSOP-EP package form factor within this product family.

LED Driver IC Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit designs if considering alternative LED controllers from other manufacturers.