LT3755EUD-2#PBF

LED Driver IC Overview

The LT3755EUD-2#PBF is a DC/DC controller designed for high-current LED driving applications. It operates as a constant-current source with an input voltage range of up to 40V and supports output voltages up to 75V. The device features a fixed frequency, current-mode architecture ensuring stable operation across wide supply and output voltage ranges. Key electrical specifications include a switching frequency between 100kHz and 1MHz, an operating junction temperature range of 0°C to 125°C, and support for both analog and PWM dimming methods.

LED Driver IC Feature Summary

• Functions as a DC/DC controller providing constant-current drive for high-current LEDs
• Supports wide input voltage ranges up to 40V and output capabilities up to 75V
• Utilizes a fixed frequency, current-mode architecture for stable performance
• Enables flexible control through integrated analog and PWM dimming interfaces

LED Driver IC Applications

• High-power LED lighting systems requiring constant current regulation
• Industrial illumination setups utilizing wide input voltage sources
• Automotive exterior lighting modules compatible with PWM dimming
• Architectural lighting fixtures demanding high output voltage compliance

LED Driver IC Procurement Notes

Verify the specific suffix (#PBF) indicates lead-free packaging when sourcing this component. Confirm that the UDFN package type matches your PCB layout requirements. Ensure compatibility with external N-channel MOSFETs selected for the low-side drive configuration. Check local distribution availability as stock levels may vary by region.

LED Driver IC Selection Notes

Select this controller for designs requiring high output voltage compliance up to 75V. It is suitable for applications needing precise current regulation via a current-mode architecture. Consider the 100kHz to 1MHz switching frequency range for inductor sizing. Ensure the design accommodates the 0°C to 125°C operating temperature range for the junction.

LED Driver IC Part Context

This part belongs to the LT3755 family of LED controllers from Analog Devices. It shares architectural similarities with the LT3755-1 but offers higher voltage compliance. The #PBF designation specifies the lead-free finish and tube packaging variant. It serves as a dedicated driver solution distinct from general-purpose DC/DC converters.

LED Driver IC Replacement Considerations

LT3755EUD-2#TRPBF is the tape-and-reel version of the same functional device. Verify if the LT3755EUD-1 is suitable for lower voltage applications requiring 36V input limits.