18V/1kW, 160A Peak, >98% Efficient, High Power Density Brushless Motor Drive Reference Design
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


The TIDA-00774 is a 1kW drive for a three-phase brushless DC (BLDC) motor in power tools operating from a 5-cell Li-ion battery with a voltage up to 21 V. The design is a 65mm x 60mm compact drive, implementing sensor-based trapezoidal control. The design takes advantage of TI's MOSFET Power Block technology, which integrates two FETs in half-bridge configuration into a single SON 5x6 package, enabling very high power density. The design uses two Power Blocks in parallel and delivers 50-ARMS continuous (120-A peak for 3 second, 160-A peak for 1 second) winding current. The MOSFET power block with minimum parasitic inductance and the current controlled gate driver with slew rate control helps in effective MOSFET paralleling and reduces switching spikes. The current sensing is done by monitoring MOSFET VDS. The board provides cycle by cycle over current and short circuit protection.

  • Operates at voltage ranging from 6-V to 21-V (5s li-ion battery) delivering 50-ARMS continuous (120A peak for 3s, 160-A peak for 1s) winding current 
  • Inverter drive efficiency > 98.5%
  • Current sensing by monitoring and amplifying the VDS of MOSFET
  • Effective MOSFET paralleling with excellent dynamic current sharing
  • 18V/680W, 33 A RMS support without heat sink
  • Cycle-by-cycle overcurrent and short circuit protection by VDS sensing

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 (5)

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
CSD88584Q5DC  40-V, N channel synchronous buck NexFET™ power MOSFET, SON 5 mm x 6 mm Dual-Cool™ power block, 50 A  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
DRV8323  65-V max 3-phase smart gate driver with current shunt amplifiers  Motor drivers  Sample & Buy View Design Kits & Evaluation Modules
LMT87  ±2°C 2.7V to 5.5V analog output temperature sensor with -13.6 mV/°C gain  Temperature sensors  Sample & Buy View Design Kits & Evaluation Modules
MSP430F5132  25 MHz MCU with 8KB Flash, 1KB SRAM, 10-bit ADC, comparator, DMA, 16-bit High Resolution timer  Microcontrollers (MCUs)  Sample & Buy View Design Kits & Evaluation Modules
TPS54061  4.7V to 60V Input, 200mA Synchronous Step-Down Converter with Low IQ  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD88584Q5DC VSON-CLIP (DMM)| 22 Download Download
DRV8323 Download Download
LMT87 Download Download
MSP430F5132 Download -
Download -
Download Download
TPS54061 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 6329 09 Nov 2016
Design files (6)
Title Type Size (KB) Date
ZIP 306 11 May 2017
ZIP 3026 11 May 2017
PDF 2091 11 May 2017
PDF 261 11 May 2017
PDF 60 11 May 2017
PDF 1270 11 May 2017
More literature (1)
Title Type Size (KB) Date
ZIP 4407 11 May 2017

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