BQ27Z561: About the problem that BQ27Z561 Lifetime cannot be cleared

wen xiao

Part Number: BQ27Z561

Hello，Expert：

When we used the BQ27Z561 IC in mass production, we found that a battery Lifetime could not be cleared, and sending the clear command with the BQ studio was also invalid. Can you help me analyze what caused such an abnormality?

over 3 years ago

+1 Shirish over 3 years ago

TI__Guru 57697 points

Hello Wen,

Is the command being rejected, or is none of the Lifetime data cleared or is it partially cleared?

0 wen xiao over 3 years ago in reply to Shirish

Prodigy 140 points

Hello Shirish：

From the phenomenon, the command is not rejected, but all Lifetime data cannot be cleared

0 Shirish over 3 years ago in reply to wen xiao

TI__Guru 57697 points

Hello Wen,

Can you provide more information on what is not being cleared?

0 Shirish over 3 years ago in reply to Shirish

TI__Guru 57697 points

Is the gauge sealed? If yes, then what is SEALED_RESET value?

Power management

Power management forum

BQ27Z561: About the problem that BQ27Z561 Lifetime cannot be cleared

Hello Shirish：