• State Resolved
  • Locked Locked
  • Replies 5 replies
  • Answers 1 answer
  • Subscribers 33 subscribers
  • Views 545 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS25750: Can we burn EEPROM through TPS25750?

Jimmy Lai
Expert 6845 points
Part Number: TPS25750
Other Parts Discussed in Thread: BQ25792

Dear Team,

Can we burn EEPROM through TPS25750?

Many Thanks,

Jimmy

  • +1
    TI__Mastermind 32601 points

    Jimmy,

    Programming the EEPROM with the TPS25750 is not supported.

    Regards,

    Chuck

  • 0 in reply to Chuck Branch
    TI__Expert 6845 points

    Hi Chuck,

    We appreciated your great support always!

    Our customer have another question as below:

    1.Why does the PPHV not supply power when I re-plug the VBUS? In this state, why does the CC pIN stop detecting? Shouldn’t it continue to detect? No matter if I plug it or not? (in Vsys 3.3v all the time In both cases)

    2.Can I use MCU or other SOC to read the status of charger ic through TPS25750?

    Many Thanks,

    Jimmy

  • 0 in reply to Jimmy Lai
    TI__Mastermind 32601 points

    Jimmy,

    1.  Can you post a block diagram of the customer system?  I am not clear on how the part is being utilized.

    2.  The TPS25750 does have an I2C interface that can provide PD status to an external MCU.  We document this in TPS25750 Host Interface Technical Reference Manual

  • 0 in reply to Chuck Branch
    TI__Expert 6845 points

    Hi Chuck,

    Thanks a lot!!

    The block diagram is as below:

     Can MCU read or write BQ25792 configuration through TPS22750?

    1. Can you explain the ADCinX function and how to set the state ? Thanks!

    The I2C address is not setting as below

    Many Thanks,

    Jimmy

  • 0 in reply to Jimmy Lai
    TI__Mastermind 32601 points

    Jimmy,

    Your system is missing a 5V/3A buck converter to power the PP5V rail to allow for power source to function.  

    Here are the divider ranges for ADCIN1 and ADCIN2

    These voltages set by a resistive divider can generate these modes:

    From what I can tell in your system, there are 2 possible options for you to use:

    1.  AlwaysEnableSink mode and boot from your SOC if your SOC has 16KBytes of extra memory for our config/patch file and can boot from 5V/3A

    2.  SafeMode.  This mode will require an EEPROM and will boot the TPS25750 when either VIN_3V3 or VBUS are provided to the part. 

    This EVM/Reference design https://www.ti.com/tool/USB-PD-CHG-EVM-01 is a really good example of how to implement the system that you are attempting.  It will show you our recommended component set to integrate the TPS25750 and the BQ25792.