HV9911NG-G-M934

Overview

The HV9911NG-G-M934 is a switch-mode LED driver IC from Microchip Technology, designed for high current accuracy in lighting applications. It operates as a DC-DC controller supporting SEPIC, buck, and boost topologies with a single output. The device features PWM dimming capability and functions within a supply voltage range of 9V to 250V. Operating frequencies are selectable at 100kHz or 350kHz. It is housed in a 16-SOIC package (0.154 inch width) and supports surface mount installation. The component is rated for an operating temperature range of -40°C to 85°C.

Feature Summary

• Provides high current accuracy for consistent LED performance
• Supports multiple converter topologies including SEPIC, buck, and boost
• Enables precise brightness control through PWM dimming interface

Applications

• LED backlighting systems
• General LED lighting fixtures
• Industrial illumination controls

Procurement Notes

Verify the complete part number HV9911NG-G-M934 against official Microchip documentation to ensure correct suffix designation. Confirm that the 16-SOIC package dimensions match your PCB footprint requirements. Check for any specific RoHS compliance declarations required by your region. Ensure the selected operating frequency aligns with your external inductor and capacitor specifications for optimal efficiency.

Selection Notes

Select this component when designing circuits requiring flexible topology support such as SEPIC or boost configurations. It is suitable for applications demanding high current accuracy without internal switches. Consider the 16-SOIC package size for space-constrained designs. Verify that the input voltage range of 9V to 250V matches your power source. Evaluate thermal management needs given the -40°C to 85°C operating range.

Part Context

This part belongs to the HV9911 series of switch-mode LED drivers manufactured by Microchip Technology. The series focuses on providing accurate current regulation for various LED loads. The NG-G-M934 suffix indicates specific packaging and environmental compliance attributes within the broader product line. It serves as a dedicated controller rather than an integrated power stage solution.

Replacement Considerations

HV9911NG-G is listed as a parameter-equivalent alternative. Verify pinout compatibility and electrical specifications before substitution.