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TPS38700S-Q1: Invalid I2C address

Tom Levisse
Prodigy 60 points
Part Number: TPS38700S-Q1

Tool/software:

Dear all,

I am using the TPS38700S-Q1 and I was wondering why the sequencer address is not correct?

In the datasheet it is written 0x3C and it answers at the address 0x07.
Could you tell me why? Is there any impact on this?

I have another situation; could you tell me what's the behavior if an I2C communication is interrupted?

Whenever I have an i2c interruption, I observe SCL at 1 and SDA at 0.

I am trying to do a bus clear generating 9 clocks pulses to unblock the i2c slave but i has no effect.

Do you have a solution for this ?

Best regards,

Tom LEVISSE

  • 0
    TI__Expert 3910 points

    Hi Tom,

    Thanks for your question!

    Just to confirm, could you please let me know the full part number of the device you are using?

    Also to confirm, are you able to read the value in register 0xF9 as described below:

    When you mention an interrupted I2C communication, could you please clarify what happens in these situations? Does this mean that the I2C communication stops midway through? It would be helpful to have a scope capture of the SCL/SDA lines in this situation.

    Best Regards,

    Andrew Li