LT8355IUFDM-1#WTRPBF

LED Driver IC Overview

The LT8355IUFDM-1#WTRPBF is a dual-channel DC/DC controller designed for high-current LED applications. It supports Boost, Buck, and SEPIC topologies with an operating frequency of 2 MHz. The device accepts input voltages from 5 V to 60 V and delivers up to 120 V output voltage across two channels. Packaged in a 28-QFN (4x5 mm) format, it operates within a temperature range of -40°C to +125°C.

LED Driver IC Feature Summary

• Dual-channel architecture for driving two independent high-current LED strings
• Multi-topology support including Boost, Buck, and SEPIC configurations
• Integrated analog and PWM dimming capabilities for precise light control

LED Driver IC Applications

• High-power LED lighting systems requiring multi-string drive
• Automotive exterior lighting applications
• Industrial illumination fixtures utilizing wide input voltage ranges

LED Driver IC Procurement Notes

Verify the specific suffix WTRPBF against official Analog Devices documentation to confirm tape-and-reel packaging and lead-free status. Ensure compatibility with the target PCB footprint for the 28-QFN package. Cross-reference the part number with current availability lists as supply constraints may apply to this component series.

LED Driver IC Selection Notes

Select this controller when dual independent LED channel management is required within a single IC solution. The fixed-frequency current mode architecture ensures stable operation across wide input and output voltage variations. Consider the 2 MHz switching frequency for balancing efficiency and passive component size in compact designs.

LED Driver IC Part Context

This component belongs to the LT8355 family of LED drivers from Analog Devices. It is specifically engineered for applications demanding high efficiency and robust fault protection. The device integrates advanced features such as sustained current limiting and fault detection to enhance system reliability in demanding lighting environments.

LED Driver IC Replacement Considerations

Consult official substitution guides for compatible alternatives within the LT8355 series or similar dual-channel controllers. Verify pinout compatibility and thermal performance before replacing the original part.