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: BQ25601
Have some quick questions on the BQ25601.
1) This is not programmable on this charger.
2) What do you mean a system reset? Do you mean to disconnect the BAT rail from the SYS rail as well as the adapter? There is a register bit to disable the BATFET. This can create a reset condition in the battery only mode. When an adapter is present, you can set both the BATFET disable bit I just mentioned AND the HIZ enable bit to disable the converter.
3) This is not programmable on this charger.
4) This is not programmable on this charger.
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 Joel Hernandez II:
I mean to get the same behavior as a BATFET_RST i.e. BATFET disabled for ~250ms and then re-enabled to perform a full system power reset. This is possible by holding QON low for >8s. Is it also possible by writing to a register?
Also, what is the expected behavior if QON is held low much longer say 20s? Do you expect the system to be held in reset till QON is pulled up or will BATFET be re-enabled 250ms after the 8s?
In reply to 6000315:
It is not possible by register. However, there is a register bit to disable the BATFET. In this scenario, you would have to control when to flip the bit to re-enable the BATFET.
One problem in most customer systems is that the system rail powers the host controller; so you may not have a pull-up rail for your I2C bus when the BATFET is disabled. That would make the alternative I suggested improbable.
And if the BATFET is held longer than 20s, it should not be held in reset. It would be reset for each 8s + 250ms pulse that passes.
Ahh too bad! Thanks this is clear.
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.