Texas Instruments LMG3100R0x GaN FETs with Integrated Drivers

Texas Instruments LMG3100R0x Gallium Nitride (GaN) FETs with Integrated Drivers are 1.7mΩ GaN FETs and drivers with a high-side level shifter and bootstrap. Two LGM3100 devices can be used to form a half-bridge with no external level shifter required. The GaN FET and driver components feature built-in supply rail under-voltage lock-out (UVLO) protection and internal bootstrap supply voltage clamping capability to prevent overdrive (>5.4V). Texas Instruments LMG3100R0x offers low power consumption and an improved user interface. The LMG3100R017 is an ideal solution for high-frequency, high-efficiency applications, including buck-boost converters, LLC converters, solar inverters, telecom, motor drives, power tools, and Class D audio amplifiers.

Features

  • Integrated 1.7mΩ (LMG3100R017) or 4.4mΩ (LMG3100R044) GaN FET/driver
  • 100V continuous, 120V pulsed voltage rating
  • Integrated high-side level shift and bootstrap
  • Two LMG3100 can form a half-bridge, no external level shifter needed
  • 5V external bias power supply
  • Supports 3.3V and 5V input logic levels
  • High slew rate switching with low ringing
  • Gate driver capable of up to 10MHz switching
  • Internal bootstrap supply voltage clamping to prevent GaN FET overdrive
  • Supply rail undervoltage lockout protection
  • Low power consumption
  • Package optimized for easy PCB layout
  • Exposed top QFN package for top-side cooling
  • Large exposed pads on the bottom for bottom-side cooling
  • Zero reverse recovery

Applications

  • Buck, boost, and buck-boost converters
  • LLC converters
  • Solar inverters
  • Telecom and server power
  • Motor drives
  • Power tools
  • Class D audio amplifiers

Specifications

  • 90V continuous voltage rating
  • 100V pulsed voltage rating
  • 5V external bias power supply
  • 3.3V to 5V input logic levels
  • 6.5mm x 4mm x 0.89mm dimensions

Simplified Block Diagram

Block Diagram - Texas Instruments LMG3100R0x GaN FETs with Integrated Drivers
Paskelbta: 2024-02-22 | Atnaujinta: 2025-08-08