Part Number: BQ76940
Understand that BQ76940 can support up to 20S battery cell. Please advise if this part is stack-able to support 30S battery cell?
Hope to hear from you soon. Thanks.
Understand that BQ76940 can support up to 15S battery cell. Please advise if this part is stack-able to support 30S battery cell?
Hope to hear from you soon. Thanks
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 GURURAJ TALEWAD:
Hi Gurauraj,You can certainly stack 2 BQ76940 monitors for a 30s battery. You can follow the TIDesign TIDA-01093 , based on BQ76930 (the 10s monitor from the same family of monitors as BQ76940), to help you in your design.
Please join us for the Battery Management Deep Dive - 2019. This in-person technical training was especially developed for design engineers working with power supply for battery-powered applications. Click here for more information
TI provides design resources and design advice (including technical, schematic, code and/or system review) “as is” and with all faults. All information in this or related correspondence is provided subject to TI’s Important Notice
In reply to David Hien:
Hello David,Do you provide sample code for "Industrial Battery Management Module for 20S Applications Reference DesignTIDA-01093 "?
Mail ID: email@example.com
Gururaj,Yes, you can find the sample code on the page I sent you under "Application Notes".
I2C Communication Sample Code for the bq76940 with CRC Based on the MSP430 (Rev. B)
I would like build a 96V Li-ion battery using 30s configuration.
In such a configuration, When the battery pack is fully charged the pack voltage will be 109.5V
I would like to make ckt similar to TIDA-01093 with bq76940
Will device bq76940 work at 109.5 volts?
In reply to Ansul Tyagi:
For 30s configuration 2 BQ76940s would need to be stacked similar to TIDA-01093. The BQ76940 has an abs max limit of 36V per 5 cell group, see the data sheet. In a 30s configuration each BQ76940 would have only 15 cells attached with a voltage less than 109.5V.
TI provides design resources and design advice (including technical, schematic, code and/or system review) “as is” and with all faults. All information in this or related correspondence is provided subject to TI’s Important Notice (http://www.ti.com/corp/docs/legal/important-notice.shtml).
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.