bq24251 / tI2Creset time

Tsukui Yusuke

Guru 21930 points

Other Parts Discussed in Thread: BQ24251

Hi,

Could you tell me about bq24251.
I have got a question about tI2CRESET time from customer.
How long is the tI2CRESET time?

It is not listed in the data sheet of bq24251.
However,It is listed in the data sheet of bq2426×.

Best Regards,
Yusuke / Japan Disty

over 8 years ago

0 Jeff F over 8 years ago

TI__Guru*** 143880 points

There is no I2C transaction timer in the bq2425x family.

0 Tsukui Yusuke over 8 years ago in reply to Jeff F

Guru 21930 points

Hi Jeff,

Thank you for your support.
Does bq24251 not have a function to reset I2C?
Is mention of the data sheet P31 「Serial Interface Description」 wrong?
When communication of I2C has a problem, customer want function of reset.
Let me know the details.

Best Regards,
Yusuke / Japan Disty

0 Jeff F over 8 years ago in reply to Tsukui Yusuke

TI__Guru*** 143880 points

Yes, the datasheet is incorrect. I will modify it shortly.

0 Tsukui Yusuke over 8 years ago in reply to Jeff F

Guru 21930 points

Hi Jeff,

Thank you for your information.
Could you tell me about happen to the operation of bq24521 when I2C error.
Customer wants to know bq24251 performing any operation when the I2C communication is interrupted,
Is there only the method that ON/OFF performs of a power supply?

Best Regards,
Yusuke / Japan Disty

0 Jeff F over 8 years ago in reply to Tsukui Yusuke

TI__Guru*** 143880 points

Sending a series of 9 start-stops should clear all errors.

0 Tsukui Yusuke over 8 years ago in reply to Jeff F

Guru 21930 points

Hi Jeff,

Tank you for your support.
I inform a customer of it.

Best Regards,
Yusuke / Japan Disty

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bq24251 / tI2Creset time