LT8393JFE#TRPBF

LED Driver IC Overview

The LT8393JFE#TRPBF is a synchronous 4-switch buck-boost LED controller from Analog Devices. It regulates LED current when input voltage is above, below, or equal to output voltage. Input voltage range is 4 V to 60 V. Output voltage capability reaches up to 100 V. Switching frequency operates between 350 kHz and 2 MHz. The device supports analog and PWM dimming. It features open LED protection. Operating temperature range spans from -40°C to +125°C. Quiescent current maximum is 4 mA. Load regulation is specified at 1%. The component is housed in a TSSOP-28 package.

LED Driver IC Feature Summary

• Synchronous four-switch topology enables buck, boost, and buck-boost operation for flexible input-output voltage relationships
• Integrated PWM and analog dimming control allows precise light intensity management
• Built-in open LED protection safeguards the driver and connected loads during fault conditions

LED Driver IC Applications

• General lighting systems requiring wide input voltage ranges
• Automotive exterior lighting applications
• Industrial high-bay LED fixtures

LED Driver IC Procurement Notes

Verify the exact suffix TRPBF indicates tape and reel packaging configuration. Confirm the J grade designation matches required operating temperature specifications. Ensure the 28-lead TSSOP footprint aligns with PCB layout constraints. Cross-reference the datasheet revision to confirm pinout compatibility. Validate that the 60V input limit suits the target power supply architecture.

LED Driver IC Selection Notes

Select this controller when input voltage fluctuates significantly relative to LED string voltage. Choose for applications requiring both analog and digital dimming capabilities. Consider for designs needing integrated protection against open circuit faults. Evaluate thermal performance within the TSSOP-28 package for the expected current load. Verify switching frequency requirements fall within the 350 kHz to 2 MHz operational window.

LED Driver IC Part Context

This component belongs to the LT8393 family of synchronous buck-boost LED drivers. It shares architectural similarities with other Analog Devices LED controllers but offers specific voltage ratings and package options. The JFE variant denotes a specific temperature grade and packaging style within the broader product line designed for robust lighting control.

LED Driver IC Replacement Considerations

LT8393EFE#PBF serves as a tube-packaged alternative within the same functional family. LT8393JFE#PBF offers the same electrical characteristics in tube format. Direct substitutes require matching the 4-switch buck-boost topology and 60V input rating.