• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer

Electrical Engineering News and Products

Electronics Engineering Resources, Articles, Forums, Tear Down Videos and Technical Electronics How-To's

  • Products / Components
    • Analog ICs
    • Battery Power
    • Connectors
    • Microcontrollers
    • Power Electronics
    • Sensors
    • Test and Measurement
    • Wire / Cable
  • Applications
    • 5G
    • Automotive/Transportation
    • EV Engineering
    • Industrial
    • IoT
    • Medical
    • Telecommunications
    • Wearables
    • Wireless
  • Learn
    • eBooks / Handbooks
    • EE Training Days
    • Tutorials
    • Learning Center
    • Tech Toolboxes
    • Webinars & Digital Events
  • Resources
    • White Papers
    • Design Guide Library
    • Digital Issues
    • Engineering Diversity & Inclusion
    • LEAP Awards
    • Podcasts
    • DesignFast
  • Videos
    • EE Videos and Interviews
    • Teardown Videos
  • EE Forums
    • EDABoard.com
    • Electro-Tech-Online.com
  • Bill’s Blogs
  • Advertise
  • Subscribe

Three-phase gate drivers geared for EVs and hybrids

October 27, 2021 By Redding Traiger

Allegro MicroSystems, Inc. is expanding its QuietMotion product line with the introduction of the new A89307 automotive-qualified gate driver integrated circuit (IC). Designed for battery cooling fans and HVAC systems in electric (EV) and hybrid vehicles, the A89307 offers ultra-low noise and vibration by using a Field Oriented Control (FOC) algorithm to drive continuous sinusoidal current to the load, helping automakers reduce noise and improve battery life, offering more miles per charge and lowering vehicle carbon footprints.

The A89307 includes a hardware-based algorithm, which requires no external sensors or software development; the user simply selects parameters using a simple GUI interface and loads them into the IC’s on-chip E2EPROM. With only five external components, the A89307 helps designers lower material costs by reducing BOM components and facilitating very small system footprints for in-motor PCBs. Its fully integrated algorithm can even eliminate the need for a separate microprocessor.

Modes of operation include open-loop PWM or fully programmable closed-loop speed control. In closed-loop mode, the customer can program the PWM-to-speed relationship to match the PWM commands provided by an external ECU. Field weakening is included to improve performance at high speed. Low-speed operation and windmilling start-up are just a few of the features included in the A89307 hardware-based digital algorithm.

While designed for xEV battery cooling fans, the A89307 can also be used in HVAC blowers as well as liquid pumps in traction inverter cooling systems. The external gate drive allows the device to be flexible enough to drive a wide range of motor powers up to 500W.

The A89307 is available in a 28L wettable flank QFN package.

You Might Also Like

Filed Under: Applications, Automotive/Transportation, EV Engineering, Power Electronic Tips Tagged With: allegromicrosystems

Primary Sidebar

EE Engineering Training Days

engineering

Featured Contributions

Five challenges for developing next-generation ADAS and autonomous vehicles

Robust design for Variable Frequency Drives and starters

Meeting demand for hidden wearables via Schottky rectifiers

GaN reliability milestones break through the silicon ceiling

From extreme to mainstream: how industrial connectors are evolving to meet today’s harsh demands

More Featured Contributions

EE Tech Toolbox

“ee
Tech Toolbox: Internet of Things
Explore practical strategies for minimizing attack surfaces, managing memory efficiently, and securing firmware. Download now to ensure your IoT implementations remain secure, efficient, and future-ready.

EE Learning Center

EE Learning Center
“ee
EXPAND YOUR KNOWLEDGE AND STAY CONNECTED
Get the latest info on technologies, tools and strategies for EE professionals.
“bills
contribute

R&D World Podcasts

R&D 100 Episode 10
See More >

Sponsored Content

Advanced Embedded Systems Debug with Jitter and Real-Time Eye Analysis

Connectors Enabling the Evolution of AR/VR/MR Devices

Award-Winning Thermal Management for 5G Designs

Making Rugged and Reliable Connections

Omron’s systematic approach to a better PCB connector

Looking for an Excellent Resource on RF & Microwave Power Measurements? Read This eBook

More Sponsored Content >>

RSS Current EDABoard.com discussions

  • ADS optimization cockpit window does not open
  • How to simulate power electronics converter in PSpice?
  • How to fix error code 3221226356 on Ansys electronic desktop 2020 R1?
  • MOSFET thermal noise in Weak vs Strong inversion
  • Voltage mode push pull with extra DC blocking capacitor

RSS Current Electro-Tech-Online.com Discussions

  • Can I make two inputs from one??
  • Is AI making embedded software developers more productive?
  • Why can't I breadboard this oscillator?
  • Cataract Lens Options?
  • Leakage Current to Earth Through Mains-Powered Multimeter?
Search Millions of Parts from Thousands of Suppliers.

Search Now!
design fast globle

Footer

EE World Online

EE WORLD ONLINE NETWORK

  • 5G Technology World
  • Analog IC Tips
  • Battery Power Tips
  • Connector Tips
  • DesignFast
  • EDABoard Forums
  • Electro-Tech-Online Forums
  • Engineer's Garage
  • EV Engineering
  • Microcontroller Tips
  • Power Electronic Tips
  • Sensor Tips
  • Test and Measurement Tips

EE WORLD ONLINE

  • Subscribe to our newsletter
  • Teardown Videos
  • Advertise with us
  • Contact us
  • About Us

Copyright © 2025 · WTWH Media LLC and its licensors. All rights reserved.
The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media.

Privacy Policy