LT8393HFE#TRPBF

LED Driver IC Overview

The LT8393HFE#TRPBF is a synchronous four-switch buck-boost LED controller from Analog Devices. It regulates LED current when the input voltage is above, below, or equal to the output voltage. The device supports an input voltage range of 4V to 60V and provides an output voltage capability up to 100V. It operates with a switching frequency between 350kHz and 2MHz. The IC features both analog and PWM dimming capabilities for precise light control. It is housed in a 28-pin TSSOP-EP package.

LED Driver IC Feature Summary

• Synchronous four-switch buck-boost topology enables regulation across wide input-to-output voltage differentials
• Supports combined analog and pulse-width modulation (PWM) dimming methods for flexible brightness control
• Integrated high-voltage output stage capable of driving loads up to 100V

LED Driver IC Applications

• LED lighting driver circuits requiring buck-boost regulation
• Industrial illumination systems with variable input power sources
• Automotive exterior lighting applications

LED Driver IC Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when reviewing official documentation. Confirm the operating temperature range and thermal pad requirements against the final datasheet revision. Ensure compatibility with the intended PCB footprint for the 28-TSSOP-EP package before procurement.

LED Driver IC Selection Notes

Select this component when the application requires regulating LED current despite significant variations between input supply and LED string voltage. It is suitable for designs needing high efficiency across wide dynamic ranges. Consider the maximum output voltage rating of 100V to ensure it meets the specific LED array requirements.

LED Driver IC Part Context

This part belongs to the LT8393 family of synchronous buck-boost controllers designed for high-performance LED driving. It shares architectural similarities with other members like the LT8391 but offers distinct output voltage capabilities. The family focuses on simplifying design by integrating the necessary switches for complex topologies into a single compact IC.

LED Driver IC Replacement Considerations

The LT8393HFE#PBF is a tube-packaged version of the same functional device. Other LT839x series variants may offer different pinouts or electrical characteristics; verify datasheet specifications carefully before substitution.