BQ76930: Configure wrong value to CC_CFG register (0x0B)

Hai Nguyen5

Intellectual 450 points

Part Number: BQ76930

Hello,

I am using BQ76930 for my project now and it occurs a issue.

What is the worst case that this issue cause?

Thank you.

over 5 years ago

0 David Hien over 5 years ago

TI__Genius 10830 points

HI Hai,
Please look at some of the previous posts on this same topic.

0 Hai Nguyen5 over 5 years ago in reply to David Hien

Intellectual 450 points

Hello,

Could you tell me what is the maximum error current when I set a value that is not 0x19 to CC_CFG register?

Thanks.

0 David Hien over 5 years ago in reply to Hai Nguyen5

TI__Genius 10830 points

Hi Hai,
I do not have data on this given, as per the datasheet, this register "must be programmed to 0x19".

0 Hai Nguyen5 over 5 years ago in reply to David Hien

Intellectual 450 points

Hello,

In datasheet, it just said that this register must be programmed to 0x19.

Could you pls explain more about that? Why should we set register to 0x19.

Thank.

0 David Hien over 5 years ago in reply to Hai Nguyen5

TI__Genius 10830 points

hi Hai,
The CC_CFG needs to be set to 0x19 to minimize offset error, as per the datasheet. Some customers have reported high residual current at zero when the register is not set. This value was determined when we did its characterization, prior to its release.

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BQ76930: Configure wrong value to CC_CFG register (0x0B)