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AM62L: Requirement of AM62L Power consumption details

Jaydip Vadodariya
Prodigy 100 points
Part Number: AM62L
Other Parts Discussed in Thread: INA228, TPS65214

Tool/software:

Hi TI Team,

We required the below information regarding the New SOC XAM62L32AOGHAANB.

1. Detailed current consumption data of the processor to create an accurate power budget.

2. In our custom board design tailored to product-specific requirements, we have referenced the EVK design and observed that current sense ICs are placed on each power rail. Could you please clarify whether these current sense ICs are essential for operation and feedback, or if they can be omitted in our custom design without affecting system functionality? (Reference snapshot of the current sensing section is attached below.)

Let me know any other details are required.

Regards,

Jaydip 

  • 0
    TI__Mastermind 22156 points

    Hi,

    Thanks for reaching out. Please refer to the AM62L power supply implementation for information on how the power delivery network can be scale based on the required low power modes and 3.3V IO current requirements. Here is the link: https://www.ti.com/lit/pdf/slvafw3 

    Regarding the current "sense ICs", if you are referring to the INA228 devices, these are included in the EVM to collect power consumption data for the AM62L processor and LPDDR4. 

    Thanks,

    Brenda

  • 0 in reply to Brenda Diaz
    Prodigy 100 points

    Hi Brenda,

    Thank you for your response. 

    Could you please provide the power calculation Excel sheet for the AM62L processor if available, similar to the one available for AM62? We need the detailed current consumption information for each voltage rail to properly size the power regulators at the PMIC input.

    Additionally, regarding the previous question, we are planning to remove the current sense section from our custom board design, provided it is not mandatory for normal operation. Please confirm.

    Regards,

    Jaydip 

  • 0 in reply to Jaydip Vadodariya
    TI__Mastermind 22156 points

    Hi,

    The Power Estimator Tool (PET) is meant for estimating power consumption during realistic operating modes; it is not intended for power supply sizing. This tool is currently in-progress and will be published to the web when AM62L is released to production. In the meantime, you could send us detailed information about your application use case and we can share preliminary power estimates. For this we would need the list of AM62L resources that will be used, along with the speed, IO configuration and approximate utilization%.  

    For supply sizing we recommend using the max current spec when designing a custom power implementation. TPS65214 PMIC was developed to meet the AM62L power, reset and sequencing requirements. Here is the link to access AM62L max current ratings: https://www.ti.com/lit/pdf/spradr4. 

    Thanks,

    Brenda 

  • 0 in reply to Brenda Diaz
    Prodigy 100 points

    Hi Brenda,

    Thank you for providing this reference document, this will help us to design the power tree with required capacity.

    Regards,

    jaydip 

  • 0 in reply to Jaydip Vadodariya
    Prodigy 100 points

    HI Brenda,

    Please share the power calculation sheet when it is available, that will help us during the thermal simulation based on the application use case.

  • 0 in reply to Jaydip Vadodariya
    TI__Mastermind 22156 points

    Hi,

    The Power Estimation Tool (PET) will be posted to the AM62L product page at RTM. In the meantime, let us know if there is any help needed to review the processor power supply implementation in your design. 

    Thanks,

    Brenda

  • 0 in reply to Brenda Diaz
    Prodigy 100 points

    Hi Brenda,

    We are currently finalizing the pin mapping based on our requirements, and will share the data with you once completed.

    Thanks,

    Jaydip 

  • +1 in reply to Jaydip Vadodariya
    TI__Mastermind 22156 points

    Noted. If there are no additional questions, we will close this E2E.

    Feel free to submit a new E2E to request a schematic review. 

    Thanks,

    Brenda