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Original question:

TPS25762-Q1: TPS25762-Q1 Base Image and Register Map

TPS25762-Q1: TPS25762 Register Map

Yunus Basegmez
Prodigy 40 points
Part Number: TPS25762-Q1
Other Parts Discussed in Thread: TPS25772-Q1

Hello Ti,

I did not see register map in datasheet or in website.

Can you please share it with me?

  • 0
    TI__Mastermind 40100 points

    Hello Yunus,

    We have not published a reference manual at this time and currently do not have plans to release one.

    What are you trying to accomplish?

    BR,

    Seong

  • 0 in reply to Seong Kim
    Prodigy 40 points

    Hello Seong,

    I want to use it with microcontroller.

    I want to change rated power value while a usb device connected or not connected to type c port.

    Also I want to see which values can share TPS25762-Q1 with microcontroller.

  • 0 in reply to Yunus Basegmez
    TI__Mastermind 40100 points

    Hello Yunus,

    By changing the rated power, do you mean changing the TX source capability? If so, you are unable to update these parameters on the fly while the device is operating. The TX source cap can only be preconfigured in the patch bundle's application configuration that is loaded when the device first boots.

    For telemetry diagnostic information, I am able to share the register information here.

    Hope this helps,

    Seong

  • 0 in reply to Seong Kim
    Prodigy 40 points

    Thanks you for information. I want to clarify what TPS25762-Q1 can do.

    I want to use 2 microcontroller and 2 TPS25762-Q1 on different equipment.

    Type-C Output max will be 20V 3.35A 67W.

    I want to do power management between these USB Type-C outputs.

    Can you please answer questions below?

    1. Are there any I2C command to close the output pmosfets with TPS25762-Q1?

    2. Can microcontroller reduce the output current capabilities of TPS25762-Q1 over I2C while a usb sink device connected to USB Type-C sinking some current. For example,

    • Default output contract is 20V 2.25A
    • Send I2C command to TPS25762-Q1 and change the output capabilities to 20V 3A.
    • Output contract is now 20V 3A.
    • Attach a usb device which sinking 20V 3A power and start consume 60W.
    • Send I2C command to TPS25762-Q1 and change the output capabilities to 9V 2.25A.
    • TPS25762-Q1 send message over CC communications.
    • Sink device reduce power consumption to 9V 2.25A.
    • Is the scenario possible? If there is a problem, can you correct it?

    3. Can microcontroller reduce the output current capabilities of TPS25762-Q1 over I2C while a usb sink device not connected to USB Type-C. For example,

    • Default output capabilities of TPS25762-Q1is 20V 2.25A.
    • Send I2C command to TPS25762-Q1 and change the output capabilities to 20V 3A.
    • Output capabilities is now 20V 3A.
    • Send I2C command to TPS25762-Q1 and change the output capabilities to 9V 2.25A.
    • Is the scenario possible? If there is a problem, can you correct it?

    4. Is there any other way to reduce sinking current of the connected usb device?

  • +1 in reply to Yunus Basegmez
    TI__Mastermind 40100 points

    Hi Yunus,

    Are you familiar with our dual-port solution, TPS25772-Q1? This device also has an integrated source power policy management system but it can automatically (as configured) manage power sharing between two ports.

    FYI - the TPS25762-Q1 supports up to 65-W USB PD power.

    To answer your questions:

    1. There is not.
    2. As mentioned, the system power can only be configured from the patch bundle app config and cannot be modified while the device is operating (USB sink device connected or not).
    3. Same answer as 2.
    4. Only if the Sink Cap is changed and a different PDO is requested. Or if the device's Power Foldback Policy is enabled and it detects a change in temperature or supply voltage level. 

    Is there any reason why you would want to charge a Sink device with less power? 

    Are you aware that you can configure up to 7 PDOs/APDOS?

    BR,

    Seong

  • 0 in reply to Seong Kim
    Prodigy 40 points

    Hi Seong,

    Thanks you for your kindly respond.

    Yes I know TPS25772-Q1. But TPS25762-Q1 and the other TPS25762-Q1 will not be in the same board, so TPS25772-Q1 is not an option from this view.

    There is a reason that the total power of the two equipment will be limited. There will be a power management between equipments.

    Seong Kim said:
    Is there any reason why you would want to charge a Sink device with less power? 

    Can you offer another solution for such design?

    I can share more information about our projects in a meeting.

    I want to discuss with an online meeting. Is it possible?

  • 0 in reply to Yunus Basegmez
    TI__Mastermind 40100 points

    Hello Yunus,

    I will close this thread and send you an E2E friendship request. Let's continue our discussion via DM. 

    BR,

    Seong