48V/500W Three-phase Inverter with Smart Gate Driver Reference Design for Servo Drives
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.

Description & Features

Technical documentation

Support & Training

Order Now

See the Important Notice and Disclaimer covering reference designs and other TI resources.

Key Document


Efficiency, protection, and integration are important design factors for compact DC-fed drives up to 60VDC. This reference design shows a three-phase inverter with nominal 48-V DC input and a 10-ARMS output current.  The 100-V intelligent three-phase gate driver DRV8350R with integrated buck converter and six 100-V NexFET™ power MOSFETs with ultra-low gate charge enable high efficiency of the power stage.  Using the internal protection features of the DRV8350R, the power stage is protected against overtemperature, overcurrent, and short-circuit between the motor terminals and motor terminals to ground. Precision phase current sensing is achieved using the INA240. The interface is a 3.3-V I/O to connect a host MCU like the C2000™ MCU for brushless AC motor control.

  • Three-phase inverter with 24-60VDC input and 10 Arms continuous phase current for servo drives
  • Very high peak efficiency (99.0%) eliminates need for heat sink or cooling fan
  • Smart three phase gate driver DRV8350R with on-chip hardware protection and integrated DC/DC buck for gate drive supply
  • Fully protected power stage: Shoot-through, over current, short circuit, under voltage, over temperature protection
  • Programmable gate driver source/sink currents from 50mA to 2A eases optimization of efficiency and EMI performance including VGS handshake and minimum dead-time insertion to avoid shoot-through
  • In-phase shunt measurement based (1mOhm) current sensing with INA240 high-common mode rejection zero-drift current sense amplifier

See the Important Notice and Disclaimer covering reference designs and other TI resources.


Schematic/Block Diagram

Quickly understand overall system functionality.

Download Schematic

Design Guide

Get results faster with test and simulation data that's been verified.

Download Design Guide

Design Files

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

Download Design Files

TI Devices (8)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD19532Q5B  100-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 4.9 mOhm  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
DRV8350R  102-V max 3-phase smart gate driver with buck regulator  Motor drivers  Sample & Buy View Design Kits & Evaluation Modules
INA240  -4 to 80V, bidirectional, ultra-precise current sense amplifier with enhanced PWM rejection  Current sense amplifiers  Sample & Buy View Design Kits & Evaluation Modules
LMZM23601  36-V, 1-A Step-Down DC-DC Power Module in 3.8-mm × 3-mm Package  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules
THVD1550  5-V RS-485 transceiver with ±18-kV IEC ESD protection  Interface  Sample & Buy Not Available
TLV431B-Q1  Automotive, low-voltage adjustable precision shunt regulator  Voltage references  Sample & Buy Not Available
TMP235  ±1.2°C 2.3V to 5.5V analog output temperature sensor with 10 mV/C gain  Temperature sensors  Sample & Buy View Design Kits & Evaluation Modules
TPS62162  3V-17V 1A Step-Down Converters with DCS-Control™  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
DRV8350R Download Download
INA240 Download
LMZM23601 Download Download
THVD1550 Download
Download Download
TLV431B-Q1 Download Download
Download Download
TMP235 Download Download
TPS62162 Download Download

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

Step 1: Download and install the free download.

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.

Technical documentation

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guide (1)
Title Type Size (KB) Date
PDF 7449 25 Sep 2018
Design files (6)
Title Type Size (KB) Date
ZIP 661 25 Sep 2018
ZIP 3323 25 Sep 2018
PDF 1858 25 Sep 2018
PDF 446 25 Sep 2018
PDF 65 25 Sep 2018
PDF 452 25 Sep 2018
E-book (2)
Title Type Size (KB) Date
PDF 12421 25 Mar 2020
PDF 3766 12 Feb 2020
Related Tools & Software

Hardware development (1)

Name Part Number Tool Type
C2000 Delfino MCU F28379D LaunchPad™ development kit  LAUNCHXL-F28379D  Development kit 

Software development (1)

Name Part Number Software Type
controlSUITE™ Software Suite: Software and Development Tools for C2000™ Microcontrollers  CONTROLSUITE  Driver or library 

Support & training

TI E2E™ forums with technical support from TI engineers

Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.

Search answers from TI experts

Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.

If you have questions about quality, packaging, or ordering TI products visit our Support page.

Technical articles