HI
We are facing the output in the battery charger. We are working on the laptop project based on intel alder lake 15W design in which we are using battery charger BQ25720RSNR.
Our board is rebooting when try to boot to the OS level. We have captured the output voltage of battery charger (VCC_VBATA), we found that there is dip in the output voltage till 6V due to which my complete system got rebooted.
We have capture the waveform of the VCC_VBATA.
Below is the screenshot:
We have also capture the input voltage whether that is also dropping while VCC_VBATA drops, but there is no drop on the input voltage i.e VCC_BCHGR_IN
We have attached the waveform and schematic for your reference. Kindly check and help to resolve the issue.
6685.Battery_charger_schematic.pdfBattery charger output waveform.docx