BQ25883: 8.3.1 Device Power-On-Reset

Yuta Nishie

Part Number: BQ25883

Tool/software:

Hi,

I have a question about "8.3.1 Device Power-On-Reset" in the datasheet.

1. Please tell me the time from IC startup to I2C interface is ready for communication. Please tell me the Min, Typ, and Max values for time.

2. Please tell me the time from IC startup to The host can access all the registers. Please tell me the Min, Typ, and Max values for time.

Best Regards,

Nishie

3 months ago

0 Ning T 3 months ago

TI__Guru 51381 points

Hi Nishie,

It's hard to specify. Even if the charger is ready for I2C communications, the actual I2C communications depend on if the host is ready, if the I2C pull-up source is ready etc.

Thanks,

Ning.

0 Yuta Nishie 3 months ago in reply to Ning T

Genius 3550 points

Hi Ning-san,

Thank you for your reply.

The customer wants to start I2C communication 500ms after the IC starts. Could you tell me if communication is possible after 500ms?

Best Regards,

Nishie

+1 Ning T 3 months ago in reply to Yuta Nishie

TI__Guru 51381 points

Nishie,

The IC should be ready for I2C communications after 500ms.

Thanks,

Ning.

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BQ25883: 8.3.1 Device Power-On-Reset