HV9963NG-G

Overview

The HV9963NG-G is a closed-loop LED driver IC from Microchip Technology, designed for high-performance lighting applications. It supports Boost, Buck, and SEPIC topologies with an adjustable output voltage range of 8 V to 40 V. The device operates at a switching frequency of 520 kHz and features enhanced PWM dimming capabilities. Packaged in a 16-pin SOIC, it functions within a temperature range of -40°C to +125°C.

Feature Summary

• Closed-loop regulation ensures stable LED current control
• Supports multiple converter topologies including Boost, Buck, and SEPIC
• Integrated enhanced PWM dimming functionality

Applications

• General LED lighting systems
• Backlighting drivers
• Signage illumination

Procurement Notes

Verify the specific package variant (e.g., tube vs. reel) against project requirements. Confirm RoHS compliance status through official datasheets. Ensure the selected part number matches the required operating voltage and topology constraints for the target application design.

Selection Notes

Select this component for designs requiring flexible topology support and precise current regulation. Consider the 16-pin SOIC package for thermal management needs. Evaluate the 520 kHz switching frequency against EMI constraints and external component sizing requirements for the specific power stage design.

Part Context

This part belongs to the HV9963 series of LED drivers. It is distinct from similar models like the HV9966 or HV9967 by its specific combination of closed-loop control and multi-topology support. The NG suffix indicates the standard plastic package variant offered by Microchip Technology.

Replacement Considerations

Direct substitutes include other Microchip HV99xx series parts with compatible pinouts and electrical characteristics. Verify that alternative components support the same Boost/Buck/SEPIC configurations and PWM dimming specifications before integration.