Part Number: DRV8701
I am considering using the DRV8701 for driving a linear motor. I would appreciate any comments or recommendations for setting the current regulation components/parameters (Data sheet 7.3.3, Current Regulation) as I am experiencing high inrush currents with the motor during bench testing. The normal operating current with no load on the motor is less than 1A. However I am recording inrush current spikes as high as 39A which last for 20µsec or so. The high current spikes occur when the motor is at the end of it's travel (either extended or retracted) and power is re-applied to try to drive the motor in the already bottomed out direction. It sounds like if a fault were to occur that it would reset automatically based on the information of 126.96.36.199, OCP but I would appreciate confirmation of this. Thank you in advance for your assistance.
Motor Drive Solutions
We are glad that we were able to resolve this issue, and will now proceed to close this thread.
If you have further questions related to this thread, you may click "Ask a related question" below. The newly created question will be automatically linked to this question.
In reply to Wang5577:
In reply to Larry Brick:
All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.
TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs andembedded processors, along with software, tools and the industry’s largest sales/support staff.