HV9989K6-G

Overview

The HV9989K6-G is a three-channel closed-loop LED driver IC designed for boost converter topologies. It supports both Continuous Conduction Mode (CCM) and Discontinuous Conduction Mode (DCM). The device operates within an input voltage range of 10 V to 40 V and features sub-microsecond PWM dimming capabilities. Packaged in a QFN-40 format, it integrates current regulation for multiple LED strings.

Feature Summary

• Three independent output channels for multi-string LED control
• Supports CCM and DCM boost operation modes
• Enables high-frequency PWM dimming with sub-microsecond precision

Applications

• General solid-state lighting fixtures
• LED backlighting systems
• Commercial illumination arrays

Procurement Notes

Verify the specific datasheet revision and ordering suffix against Microchip Technology official documentation before finalizing design-in. Confirm package marking codes and RoHS compliance status directly from the manufacturer's latest release notes to ensure alignment with project requirements.

Selection Notes

Select this component when designing boost-based LED drivers requiring independent channel regulation. Ensure the application circuit accommodates the 10 V to 40 V input range and that thermal management strategies address the specified power dissipation limits for the QFN-40 package.

Part Context

This part belongs to the HV9989 series of LED drivers from Microchip Technology. It shares functional similarities with other members like the HV9985K6-G but is specifically optimized for boost topologies supporting both CCM and DCM operations across three channels.

Replacement Considerations

The HV9989K6-G-M935 is a documented variant within the same family. Verify if the suffix indicates a specific tape-and-reel configuration or packaging difference rather than a functional change.