LYT1604D

LED Driver IC Overview

The LYT1604D is an LED lighting driver IC from the LYTSwitch-1 series by Power Integrations. It utilizes a Buck topology and operates as a single-stage PFC controller with constant current output. The device supports an input voltage range of 90 VAC to 308 VAC and delivers an output current of 182 mA. Operating at a frequency of 20 kHz, it features adjustable output voltage. The component is housed in an SOIC-8 package and is rated for operation between -40°C and +125°C.

LED Driver IC Feature Summary

• Integrates high-voltage power MOSFET and control logic for simplified design
• Provides constant current regulation for stable LED performance
• Supports single-stage power factor correction functionality

LED Driver IC Applications

• LED lighting drivers
• General illumination systems

LED Driver IC Procurement Notes

Verify the specific ordering suffix when sourcing this component. Official documentation indicates that the standard tube packaging has transitioned to reel-based part numbers such as LYT1604D-TL. Ensure the selected variant matches the required manufacturing process and handling specifications for your assembly line.

LED Driver IC Selection Notes

Select this component for applications requiring integrated offline switching with buck topology. It is suitable for designs needing a wide AC input range and fixed output current capabilities. Consider the thermal limits and package constraints during the initial schematic capture phase to ensure compatibility with the target PCB layout.

LED Driver IC Part Context

This device belongs to the LYTSwitch-1 family, which combines primary-side regulation with integrated power switching. It is designed to reduce external component count compared to traditional isolated flyback controllers. The LYT1604D specifically targets medium-power LED applications where cost efficiency and compact form factors are prioritized.

LED Driver IC Replacement Considerations

Official sources indicate the standard LYT1604D has been superseded by the LYT1604D-TL variant due to packaging changes. Verify if the -TL suffix meets all electrical requirements before substitution.