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: BQ51050B
I have developed a pcb for wireless charging of a LiPo battery using the bq51050b IC. My design is based on the reference design. When i put the coil on the charging pad and look at the RECT signal (as this is stated to be the best indicator of the circuit receiving something from the charger) it shows the following:
Im not sure what this means for the system and if it should be working like this or not. The led indicating if the circuit is charging also isn't lighting up. How do i proceed troubleshooting the system and finding out how to get it work?
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 Norelis Medina:
Thank you for making me check the board for shorts again ;-) should have thought of that aswell, there was a short between pin 4 and 5 on the ic. i fixed the issue and now it is charging fine.
In reply to Tim Kleinloog:
I've copied the TIDA-00329 and used the rx coil 760308101219 from wurth. It seems that I have the same problem : rx ping, but no tx allowed (RECT has a similar behaviour).
I've checked the short circuits, but there is none. I have a first question : if EN2 is low, and AD is low too, will a wireless charge happen?
The second question : what should I check to have more precise details? I've set the charging current to 50mA with a 5k resistor, is it too much?
In reply to Cedric Decouen:
Bill Johns, Applications Engineer
Texas Instruments Inc
Please click "This resolved my issue" button if this post answers your question.
For more information on Battery Charger Solutions see Link
Tip -- Improve search results by including "FAQ"
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.