LT8393HFE#PBF

LED Driver IC Overview

The LT8393HFE#PBF is a synchronous 4-switch buck-boost LED controller manufactured by Analog Devices Inc. It operates with an input voltage range of 4 V to 60 V and supports output voltages up to 100 V. The device features a fixed switching frequency of 350 kHz to 2 MHz and delivers an output current of 300 mA. It is housed in a TSSOP-28 package and functions within a temperature range of -40°C to +125°C. Key electrical specifications include a maximum supply current of 4 mA, single-channel operation, and compatibility with SMD/SMT installation styles.

LED Driver IC Feature Summary

• Synchronous 4-switch buck-boost topology for regulating LED current regardless of input versus output voltage relationships
• Integrated PWM dimming capability for precise brightness control
• Built-in open LED protection mechanism to enhance system reliability

LED Driver IC Applications

• LED lighting driver ICs requiring wide input voltage ranges
• Systems utilizing 60V input and 100V output configurations
• Synchronous buck-boost LED controller implementations

LED Driver IC Procurement Notes

Verify the specific suffix #PBF indicates tube packaging when sourcing components. Confirm that the TSSOP-28 package matches your PCB footprint requirements. Ensure the operating temperature range of -40°C to +125°C aligns with your environmental design constraints. Cross-reference the 300 mA output current limit against your load requirements. Validate RoHS compliance status through official manufacturer documentation prior to integration.

LED Driver IC Selection Notes

Select this component when designing circuits that require regulation across buck, boost, and pass-through modes. The 100 V output capability distinguishes it from lower-voltage variants within the family. Consider the 300 mA output current limit for appropriate load sizing. The TSSOP-28 package offers a compact solution for space-constrained designs. Verify compatibility with external MOSFETs if higher power handling is required beyond the internal switch limits.

LED Driver IC Part Context

This part belongs to the LT8393 series of synchronous buck-boost controllers designed for high-performance LED applications. Unlike the LT8391 or LT8390 which target different current or voltage profiles, the LT8393 specifically supports up to 100 V outputs. It shares the 4-switch architecture common to the series but differs in output current capacity and maximum voltage ratings compared to other members like the LT8393EFE#PBF.

LED Driver IC Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Evaluate the LT8393EFE#PBF for similar functionality, noting differences in output voltage and current specifications. Direct pin-to-pin replacements should be verified against official Analog Devices substitution guides.