BQ40Z60EVM-578: Unable to charge the battery pack

Nishil Bhavsar

Part Number: BQ40Z60EVM-578
Other Parts Discussed in Thread: BQ40Z60, BQSTUDIO

Hello,

I am unable to charge my battery pack.

I have attached the BQ40Z60 EVM's config file.

0 Kang Kang over 4 years ago

Hello Nishil,

Please provide a picture of your board setup.

Also, did you click Charger_En?

0 Nishil Bhavsar over 4 years ago in reply to Kang Kang

Hello Kang,

I cannot provide a photo of setup as it is confidential.

But the setup seems to be okay. I am able to see the correct charging voltage across VAC and GND.

And I am able to see the same voltage in BQStudio.

ACLW bit is toggling even though the charging voltage shown in BQStudio is greater than the set charging voltage.

0 Kang Kang over 4 years ago in reply to Nishil Bhavsar

That means your VBUS is probably dipping below some threshold.

Power management forum