CL220K4-G

Current Regulation/Management Overview

The CL220K4-G is a constant current LED driver IC manufactured by Microchip Technology, designed for high-voltage DC applications. It operates within an input voltage range of 5 V to 220 V and provides a fixed output current of 20 mA. The device supports both Boost and Buck topologies with adjustable output voltage capabilities. Housed in a TO-252 surface-mount package, it functions reliably across a temperature range of -40°C to +125°C. This component integrates external FET dimming control for flexible lighting management.

Current Regulation/Management Feature Summary

• Supports Boost and Buck converter topologies for versatile circuit design
• Enables external field-effect transistor dimming operations
• Maintains constant current regulation for stable LED performance

Current Regulation/Management Applications

• Spotlighting systems
• Industrial lamp indicators
• Signage illumination
• Constant current source circuits

Current Regulation/Management Procurement Notes

Verify the End-of-Life status before finalizing designs, as discontinuation notifications may apply. Confirm RoHS compliance requirements against specific project standards. Ensure the TO-252 package dimensions align with existing PCB footprints. Validate that the 20 mA output current meets the target LED array specifications. Check for updated datasheet revisions to ensure accurate electrical parameter alignment.

Current Regulation/Management Selection Notes

Select this component when designing high-voltage LED drivers requiring simple linear or switching regulation. The wide input voltage range accommodates various power supply configurations without complex pre-conditioning. Consider the thermal performance of the TO-252 package for heat dissipation needs. Verify compatibility with external FETs if dimming functionality is required for the application.

Current Regulation/Management Part Context

This part belongs to Microchip's LED Lighting Drivers category under Power Management ICs. It serves as a specialized solution for driving LEDs in high-voltage environments where precise current control is critical. The product line focuses on simplifying adoption in data centers and other high-voltage power applications through robust and efficient driver technologies.

Current Regulation/Management Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.