TPS65982: I2C fall time over spec

Jim CHEN

Expert 4795 points

Part Number: TPS65982

Dear Team,

TPS65982 SCL/SDA fall time are over spec.

Is there any concern?

Thank you.

tf
SCL	1.046ns	Fail
SDA	2.614ns	Fail

over 7 years ago

0 Eric Beljaars over 7 years ago

TI__Mastermind 36756 points

Hi Jim,

I do not see a concern here as the times you measured are still well below the maximum rise and fall times for SCL and SDA. Can you advise me the pullup value you have on the I2C bus? also, in which specification did you find that rise and fall time?

Thank you,
Eric

0 Jim CHEN over 7 years ago in reply to Eric Beljaars

TI__Expert 4795 points

Hi Eric,

In table 5, the rise and fall time are lower than the minimum of spec. They should be at least 20ns.
I am check the value with the customer and will get back to you.

Regards,

Jim

0 Jim CHEN over 7 years ago in reply to Jim CHEN

TI__Expert 4795 points

Hi Eric,

The resistor value is 2.2k ohm.

Regards,
Jim

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TPS65982: I2C fall time over spec