BQ51050B: Not charging again, when first cycle of charging is done (continued)

Norbert Towiański

Part Number: BQ51050B

Hi,

I am sorry that I didn't reply earlier, but another more prioritized task came up and I had to leave a charging issue for a moment.
I measured TS/CTRL on the oscilloscope when the device stops charging.

It looks like some attempts of communication? When the device is on the charging pad a voltage is about 4V.

over 3 years ago

0 Anthony P Pham over 3 years ago

TI__Mastermind 23410 points

Hi Norbert,

Thanks for measuring the TS, would you be able to monitor the EPT and see what it says? From our previous discussion, it looks like removing the NTC and replacing it with a resistor was fine. I suspect this is still the case.

Other steps to take make be found here: https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/910420/faq-startup-troubleshooting-for-wireless-power-rx

Best Regards,

Anthony Pham

Power management

Power management forum

BQ51050B: Not charging again, when first cycle of charging is done (continued)