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LMG1210

ACTIVE

1.5-A, 3-A, 200-V half bridge gate driver, 5-V UVLO and programmable dead-time for GaNFET and MOSFET

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Data sheet

LMG1210

ACTIVE
Data sheet Order now

Product details

Bootstrap supply voltage (max) (V) 300 Power switch GaNFET, MOSFET Input supply voltage (min) (V) 6 Input supply voltage (max) (V) 18 Peak output current (A) 3 Operating temperature range (°C) -40 to 125 Undervoltage lockout (typ) (V) 4 Rating Catalog Propagation delay time (µs) 0.01 Rise time (ns) 0.5 Fall time (ns) 0.5 Iq (mA) 0.3 Input threshold TTL Channel input logic TTL/PWM Features Bootstrap supply voltage clamp, Dead time control, Internal LDO, Resistor-controllable deadtime Driver configuration Half bridge
Bootstrap supply voltage (max) (V) 300 Power switch GaNFET, MOSFET Input supply voltage (min) (V) 6 Input supply voltage (max) (V) 18 Peak output current (A) 3 Operating temperature range (°C) -40 to 125 Undervoltage lockout (typ) (V) 4 Rating Catalog Propagation delay time (µs) 0.01 Rise time (ns) 0.5 Fall time (ns) 0.5 Iq (mA) 0.3 Input threshold TTL Channel input logic TTL/PWM Features Bootstrap supply voltage clamp, Dead time control, Internal LDO, Resistor-controllable deadtime Driver configuration Half bridge
WQFN (RVR) 19 12 mm² (4 mm × 3 mm)
  • Up to 50-MHz operation
  • 10-ns typical propagation delay
  • 3.4-ns high-side to low-side matching
  • Minimum pulse width of 4 ns
  • Two control input options
    • Single PWM input with adjustable dead time
    • Independent input mode
  • 1.5-A peak source and 3-A peak sink currents
  • External bootstrap diode for flexibility
  • Internal LDO for adaptability to voltage rails
  • High 300-V/ns CMTI
  • HO to LO capacitance less than 1 pF
  • UVLO and overtemperature protection
  • Low-inductance WQFN package
  • Up to 50-MHz operation
  • 10-ns typical propagation delay
  • 3.4-ns high-side to low-side matching
  • Minimum pulse width of 4 ns
  • Two control input options
    • Single PWM input with adjustable dead time
    • Independent input mode
  • 1.5-A peak source and 3-A peak sink currents
  • External bootstrap diode for flexibility
  • Internal LDO for adaptability to voltage rails
  • High 300-V/ns CMTI
  • HO to LO capacitance less than 1 pF
  • UVLO and overtemperature protection
  • Low-inductance WQFN package

The LMG1210 is a 200-V, half-bridge MOSFET and Gallium Nitride Field Effect Transistor (GaN FET) driver designed for ultra-high frequency, high-efficiency applications that features adjustable deadtime capability, very small propagation delay, and 3.4-ns high-side low-side matching to optimize system efficiency. This part also features an internal LDO which ensures a gate-drive voltage of 5-V regardless of supply voltage.

To enable best performance in a variety of applications, the LMG1210 allows the designer to choose the optimal bootstrap diode to charge the high-side bootstrap capacitor. An internal switch turns the bootstrap diode off when the low side is off, effectively preventing the high-side bootstrap from overcharging and minimizing the reverse recovery charge. Additional parasitic capacitance across the GaN FET is minimized to less than 1 pF to reduce additional switching losses.

The LMG1210 features two control input modes: Independent Input Mode (IIM) and PWM mode. In IIM each of the outputs is independently controlled by a dedicated input. In PWM mode the two complementary output signals are generated from a single input and the user can adjust the dead time from 0 to 20 ns for each edge. The LMG1210 operates over a wide temperature range from –40°C to 125°C and is offered in a low-inductance WQFN package.

The LMG1210 is a 200-V, half-bridge MOSFET and Gallium Nitride Field Effect Transistor (GaN FET) driver designed for ultra-high frequency, high-efficiency applications that features adjustable deadtime capability, very small propagation delay, and 3.4-ns high-side low-side matching to optimize system efficiency. This part also features an internal LDO which ensures a gate-drive voltage of 5-V regardless of supply voltage.

To enable best performance in a variety of applications, the LMG1210 allows the designer to choose the optimal bootstrap diode to charge the high-side bootstrap capacitor. An internal switch turns the bootstrap diode off when the low side is off, effectively preventing the high-side bootstrap from overcharging and minimizing the reverse recovery charge. Additional parasitic capacitance across the GaN FET is minimized to less than 1 pF to reduce additional switching losses.

The LMG1210 features two control input modes: Independent Input Mode (IIM) and PWM mode. In IIM each of the outputs is independently controlled by a dedicated input. In PWM mode the two complementary output signals are generated from a single input and the user can adjust the dead time from 0 to 20 ns for each edge. The LMG1210 operates over a wide temperature range from –40°C to 125°C and is offered in a low-inductance WQFN package.
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Technical documentation

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* Data sheet LMG1210 200-V, 1.5-A, 3-A half-bridge MOSFET and GaN FET driver with adjustable dead time for applications up to 50 MHz datasheet (Rev. D) PDF | HTML Feb 7, 2019
Application note Using Half-Bridge Gate Driver to Achieve 100% Duty Cycle for High Side FET PDF | HTML Mar 25, 2024
Application note Implementing Bootstrap Overcharge Prevention in GaN Half-bridge Circuits PDF | HTML Nov 15, 2023
Application note Bootstrap Circuitry Selection for Half Bridge Configurations (Rev. A) PDF | HTML Sep 8, 2023
Application brief GaN Applications PDF | HTML Aug 10, 2022
Application brief GaN Driver Schematic and Layout Recommendations PDF | HTML Aug 10, 2022
Application brief Nomenclature, Types, and Structure of GaN Transistors PDF | HTML Aug 4, 2022
Application brief Key Parameters and Driving Requirements of GaN FETs PDF | HTML Aug 4, 2022
Application brief How GaN Enables More Efficient and Reduced Form Factor Power Supplies PDF | HTML Aug 2, 2022
Application note Comparative Analysis of Two Different Methods for Gate-Drive Current Boosting (Rev. A) PDF | HTML Feb 17, 2022
Application note Implementing High-Side Switches Using Half-Bridge Gate Drivers for 48-V Battery. May 12, 2020
Application brief External Gate Resistor Selection Guide (Rev. A) Feb 28, 2020
Application brief Understanding Peak IOH and IOL Currents (Rev. A) Feb 28, 2020
Application note How to Optimize RF Amplifier Performance Using LMG1210 Oct 3, 2019
Application note GaN Gate Driver Layout Help May 23, 2019
Application brief Achieve Cooler Thermals and Loss of your GaN Half-Bridge with the LMG1210 May 23, 2019
Application note Get the Most Power from a Half-bridge with High-Frequency Controllable Precision Dec 5, 2018
Application note Optimizing efficiency through dead time control with the LMG1210 GaN driver (Rev. A) Nov 27, 2018
White paper Optimizing multi-megahertz GaN driver design white paper (Rev. A) Nov 27, 2018
Technical article The sound of GaN PDF | HTML Jun 26, 2018
Technical article GaN drivers – switching faster than today’s technology PDF | HTML Mar 5, 2018
White paper A comprehensive methodology to qualify the reliability of GaN products Mar 2, 2015

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

LMG1210EVM-012 — LMG1210 Half-bridge Open Loop Evaluation Module

The LMG1210EVM-012 is designed to evaluate the LMG1210 Megahertz 200V half-bridge driver for GaN FETs. This EVM consists on two Gallium Nitride FETs configured in a half-bridge, driven by a single LMG1210. No controller is present on the board.
User guide: PDF
Supported products & hardware
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Simulation model

LMG1210 PSpice Transient Model (Rev. C)

SNOM615C.ZIP (22427 KB) - PSpice model
Supported products & hardware
Simulation model

LMG1210 TINA-TI Reference Design (Rev. C)

SNOM617C.TSC (610 KB) - TINA-TI reference design
Supported products & hardware
Simulation model

LMG1210 Unencrypted PSPICE Transient Model

SNOM677.ZIP (7 KB) - PSpice model
Supported products & hardware
Calculation tool

SNOR035 — LMG1210 Component Design Calculator and Schematic Review

Supported products & hardware
Reference design

PMP21440 — Comparison: 0.8V/8W GaN vs Silicon Power Supply Reference Design

This reference design provides customers with a comparison study on the usage of GaN vs SI in power supply designs. This specific design uses TPS40400 controller to drive CSD87381 for the silicon power supply and LMG1210 with EPC2111 for the GaN power supply to provide 0.8V/10A. This design (...)
Supported products & hardware
Reference design

PMP22951 — 54-V, 3-kW phase-shifted full-bridge with active clamp reference design

is reference design is a GaN-based 3-kW phase-shifted full-bridge (PSFB) converter. This design uses an active clamp on the secondary side to minimize the voltage stress on the synchronous rectifier (SR) MOSFETs enabling the use of lower voltage rating MOSFETs that possess better figure-of-merit (...)
Supported products & hardware
Reference design

TIDA-01634 — Multi-MHz GaN Power Stage Reference Design for High-Speed DC/DC Converters

This reference design implements a multi-MHz power stage design based on the LMG1210 half-bridge GaN driver and GaN power High Electron Mobility Transistors (HEMTs). With highly efficient switches and flexible dead-time adjustment, this design can significantly improve power density while (...)
Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
WQFN (RVR) 19 Ultra Librarian
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