This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Part Number: BQ24193
We had a problem with bq24193 BMS IC . bq24193 supports input voltage range of 3.9V to 17V . But this IC is not working for 15.1V input with 1A load . At this input the IC is damaging.how to solve this issue?
Could you please send a scope capture with VBUS, BTST, and SW? I am wondering if switching noise spikes could be damaging your IC.
Could you also describe your setup? What are you using to power VBUS and what are you using to represent a load?
Finally, is this issue repeatable on our EVM?
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 Ricardo:
we are connecting load of 1A at the output and we do not EVM.
Could you please let me know the thermal considerations and can we cutoff the battery when battery discharges to 3.5V with input supply OFF.
Please find the below circuit of bq24193.
Thanks and regards,
In reply to PRASAD VEMULA:
Are you seeing a NTC fault on REG09[2:0] or a thermal shutdown fault?
The device does monitor its junction temperature and performs thermal regulation and shutdown according to section 188.8.131.52 of the d/s. The thermistor network monitors the battery temperature and follows the JEITA profile as described in section 184.108.40.206.1 of the d/s.
You are able to turn off BATFET off using a host controller via I2C on REG07, but you would need external circuitry such as a voltage supervisor to determine when to turn off the FET.
Can you please share us I2C register configuration and programming guide.
What is the hardware recquired for designing Battery voltage supervisory circuitry.can you please share us the design of it.
I suggest you read this blog post to learn more about the voltage supervisor ICs. After deciding your topology, I would create a new thread in the voltage supervisor forum to get a recommendation on a part from them.
The drivers for the bq2419X device can be found in this repository.
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.