Three-phase brushless motor pre-driver

Texas Instruments DRV8301 brushless motor provides improved thermal performance and greater efficiency in BLDC and PMSM applications.

09/30/2011


Texas Instruments Incorporated (TI) (NYSE:TXN) introduced the first in a new line of integrated three-phase brushless motor pre-drivers. The DRV8301 can drive sub-10-A to 60-A external FETs, providing current scalability, improved thermal performance and greater efficiency in brushless dc (BLDC) and permanent magnet synchronous motor (PMSM) applications. Some examples include ventilation pumps, medical pumps, commercial refrigeration cooling systems, robotics, power tools, e-bikes and other high-torque industrial motor control applications.

The highly integrated DRV8301 reduces board space, bill of materials and system complexity while improving reliability. In addition to a fully protected three-phase brushless gate driver, it includes a 1.5-A step-down voltage regulator to power the system microcontroller (MCU), such as the C2000 Piccolo; two current-sense amplifiers with integrated input and feedback resistors for current measurements; and a SPI interface for device configuration from the MCU.

Key features

  • Three-phase brushless gate driver: Provides gate drive current up to 1.7-A source and 2.3-A sink from a single 8-V to 60-V supply. Slew rate and dead-time can be adjusted to optimize performance.
  • 1.5-A step-down voltage regulator: Operating from 3.5 V to 60 V, the regulator provides power for the MCU or other system components.
  • Two bi-directional current-sense amplifiers: Includes adjustable gain, output offset and DC calibration circuitry to reduce board space and system cost. The DC calibration circuitry minimizes DC offset and drift over temperature to improve motor performance.
  • Fully protected: Two-stage thermal, cycle-by-cycle over current protection, under-voltage, and shoot through protection with detailed fault feedback reduces design complexity and improves system reliability.

www.ti.com

Texas Instruments Incorporated

- Edited by Chris Vavra, Control Engineering, www.controleng.com 

Control Engineering Motors and Drive channel

http://www.controleng.com/new-products/motors-and-drives.html



No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
Each year, a panel of Control Engineering editors and industry expert judges select the System Integrator of the Year Award winners.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Learn how to create value with re-use; gain productivity with lean automation and connectivity, and optimize panel design and construction.
Go deep: Automation tackles offshore oil challenges; Ethernet advice; Wireless robotics; Product exclusives; Digital edition exclusives
Lost in the gray scale? How to get effective HMIs; Best practices: Integrate old and new wireless systems; Smart software, networks; Service provider certifications
Fixing PID: Part 2: Tweaking controller strategy; Machine safety networks; Salary survey and career advice; Smart I/O architecture; Product exclusives
The Ask Control Engineering blog covers all aspects of automation, including motors, drives, sensors, motion control, machine control, and embedded systems.
Look at the basics of industrial wireless technologies, wireless concepts, wireless standards, and wireless best practices with Daniel E. Capano of Diversified Technical Services Inc.
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
This is a blog from the trenches – written by engineers who are implementing and upgrading control systems every day across every industry.
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Case Study Database

Case Study Database

Get more exposure for your case study by uploading it to the Control Engineering case study database, where end-users can identify relevant solutions and explore what the experts are doing to effectively implement a variety of technology and productivity related projects.

These case studies provide examples of how knowledgeable solution providers have used technology, processes and people to create effective and successful implementations in real-world situations. Case studies can be completed by filling out a simple online form where you can outline the project title, abstract, and full story in 1500 words or less; upload photos, videos and a logo.

Click here to visit the Case Study Database and upload your case study.