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TIDA-010936

48V/16A small form factor three-phase GaN inverter reference design for integrated motor drives

Design files

TIDA-010936

Design files

Overview

This reference design demonstrates a high-power density 12V to 60V three-phase power stage using three LMG2100R044 100V, 35A gallium nitride (GaN) half-bridges with integrated GaN FETs, driver and bootstrap diode specifically for motor-integrated servo drives and robotics applications. Accurate phase-current sensing is achieved through either the IN241A current sense amplifier, or the AMC0106M05 functionally isolated delta-sigma modulator, DC-link and phase voltages are also measured allowing validation of advanced sensorless designs, such as the InstaSPINFOC™. The design offers a TI BoosterPack™ compatible 3.3V I/O interface to connect to a C2000™ MCU LaunchPad™ development kit or a Sitara™ microcontroller for quick and easy performance evaluation of TI's GaN technology.

Features
  • Small form factor LMG2100R044 GaN half-bridge power stage enables high power density and easy PCB layout
  • High efficiency (99.3% peak) at 40kHz PWM enables operation at 25°C ambient up to 16ARMS continuous current without heat sink
  • LMG2100R044 device enables operation at higher PWM frequencies to help reduce DC-bus capacitor size and height by replacing electrolytic with ceramic capacitors
  • Zero reverse recovery losses reduce switch node oscillations
  • Low dead time of 16.6ns minimizes phase voltage distortions
  • Precision phase current sense options using a 1mΩ shunt with either a INA241A amplifier with high PWM rejection or an AMC0106M05 functional isolated modulator
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Design files & products

Design files

Download ready-to-use system files to speed your design process.

download Design guide — TIDA-010936
PDF | HTML
TIDUF68A.PDF (4559 KB)

Reference design overview and verified performance test data

download Assembly drawing — TIDA-010936
TIDMCO1A.PDF (580 KB)

Detailed overview of design layout for component placement

download Bill of materials (BOM) — TIDA-010936
TIDMCO0A.PDF (346 KB)

Complete listing of design components, reference designators, and manufacturers/part numbers

download CAD/CAE symbol — TIDA-010936
TIDMCO3A.ZIP (3053 KB)

Files used for 3D models or 2D drawings of IC components

download Gerber file — TIDA-010936
TIDCGN1A.ZIP (986 KB)

Design file that contains information on physical board layer of design PCB

download PCB layout — TIDA-010936
TIDMCO2A.PDF (2273 KB)

PCB layer plot file used for generating PCB design layout

download Schematic — TIDA-010936
TIDMCN9A.PDF (945 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

Thermistors

TMP61 — 1%, 10-kΩ linear thermistor in 0402, 0603/0805 and through hole packages

Data sheet: PDF | HTML
Voltage translators

TXU0304 — Four-channel fixed multidirectional level shifter

Data sheet: PDF | HTML
Isolated ADCs

AMC0106M25 — ±250mV input functionally isolated delta-sigma modulator for current sensing

Data sheet: PDF | HTML
Analog current-sense amplifiers

INA241A — -5-V to 110-V bidirectional ultraprecise current sense amplifier with enhanced PWM rejection

Data sheet: PDF | HTML
Isolated ADCs

AMC0106M05 — ±50mV input functionally isolated delta-sigma modulator for current sensing

Data sheet: PDF | HTML
Gallium nitride (GaN) power stages

LMG2100R044 — 100-V 4.4-mΩ half-bridge GaN FET with integrated driver and protection

Data sheet: PDF | HTML
DC/DC converters

LMR38010 — SIMPLE SWITCHER® 80-V, 1.0-A, 2.2-MHz step-down converter with 40-µA IQ

Data sheet: PDF | HTML
Analog current-sense amplifiers

INA310A — -4-V to 110-V, 1.3-MHz, ultra-precise current-sense amplifier with comparator

Data sheet: PDF | HTML
Series voltage references

REF3333 — 3.3-V, 30-ppm/°C drift, 3.9-µA, 3-pin SOT-23, 3-pin SC70, 8-pin UQFN voltage reference

Data sheet: PDF | HTML
Power modules (integrated inductor)

TPSM82821 — 5.5-V input, 1-A step-down module with integrated inductor in 2 x 2.5 x 1.1-mm μSIP package

Data sheet: PDF | HTML

Start development

Hardware development

Evaluation board

BOOSTXL-LMG2100-MD — LMG2100 boost evaluation module

This reference design demonstrates a high-power density 12V to 60V three-phase power stage using three LMG2100R044 100V, 35A gallium nitride (GaN) half-bridges with integrated GaN FETs, driver and bootstrap diode specifically for motor-integrated servo drives and robotics applications. Accurate (...)
EVM user’s guide: PDF | HTML
Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIDA-010936 — 48V/16A small form factor three-phase GaN inverter reference design for integrated motor drives
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Limit:
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BOOSTXL-LMG2100-MD — LMG2100 boost evaluation module

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Hardware development
Reference design
TIDA-010936 — 48V/16A small form factor three-phase GaN inverter reference design for integrated motor drives
Evaluation board

LAUNCHXL-F28P65X — C2000™ real-time MCU F28P65x LaunchPad™ development kit

This reference design demonstrates a high-power density 12V to 60V three-phase power stage using three LMG2100R044 100V, 35A gallium nitride (GaN) half-bridges with integrated GaN FETs, driver and bootstrap diode specifically for motor-integrated servo drives and robotics applications. Accurate (...)
Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIDA-010936 — 48V/16A small form factor three-phase GaN inverter reference design for integrated motor drives
In stock
Limit:
Out of stock on TI.com
Not available on TI.com

LAUNCHXL-F28P65X — C2000™ real-time MCU F28P65x LaunchPad™ development kit

close
Latest version
Version: null
Release date:
open-in-new

View all versions

Hardware development
Reference design
TIDA-010936 — 48V/16A small form factor three-phase GaN inverter reference design for integrated motor drives
TI’s Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

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* Design guide 48V, 16A Small Form Factor Three-Phase GaN Inverter Reference Design for Integrated Motor Drives (Rev. A) PDF | HTML Mar 25, 2025

Related design resources

Software development

SOFTWARE DEVELOPMENT KIT (SDK)
C2000WARE-MOTORCONTROL-SDK — MotorControl software development kit (SDK) for C2000™ MCUs

Support & training

TI E2E™ forums with technical support from TI engineers

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