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the program of PMIC (TPS65941)

liangmiao li
Prodigy 30 points

Please provide the program of two PMIC (TPS65941) in TDA4 EVM board and corresponding burning method.

  • 0
    TI__Guru 63591 points

    Hello,

        Please confirm which two PMICs you are requesting.  You can find the NVM programming method described in section 8.2.1 of https://www.ti.com/lit/ug/slvubt8a/slvubt8a.pdf . 

    Regards,

    Chris

  • 0 in reply to Chris Sterzik
    Prodigy 30 points

    Two questions：

    1、According to the design of TDA4 Demo, the whole SOC power supply uses two PMIC TPS6594, and external I2C bus for the initial program configuration of the two Pmics, how to solve the I2C address of the initial two Pmics?

    2、My TDA4 power supply design adopts the same design as TDA4 Demo. Do you have any ready-made programs for customers to use?

  • 0 in reply to liangmiao li
    TI__Guru 63591 points

    Hello,

        My understanding is that the current TDA4 demo uses the PTPS659413F0 and the PTPS659411F0.  These devices are PG1.0 silicon and are being replaced by TPS65941212 and TPS65941111.  These devices come pre-programmed, so no programming is necessary.  

       Please be advised that the PTPS659413F0 + PTPS659411F0, solution uses a dual phase configuration for the AVS rail while the TPS65941212 + TPS65941111 uses a three phase rail to provide AVS.  The three phase configuration is recommended over the dual phase.  Please find a description here:

    https://www.ti.com/lit/ug/slvuc32/slvuc32.pdf

    Thanks and Regards,

    Chris 

  • 0 in reply to Chris Sterzik
    Prodigy 30 points

    Hello，

    Three  questions：

     1、 My understanding is that TDA4 will use TPS65941212 + TPS65941111 in the future, and the PMIC program is factory cured (uses a three phase Rail to provide AVS), so users do not need to burn the program by themselves？

    2、Can you provide the TDA4+TPS65941212 + TPS65941111 reference design?

    3、Are TPS65941212 and TPS65941111 chips in mass production? Can it be purchased normally?

  • 0 in reply to liangmiao li
    Prodigy 30 points

    Hello，

    1、Our TDA4 power supply system is designed in the way of TPS659413-Q1+TPS659411-Q1 (the details are shown below). Is it ok if our company keeps this design unchanged? Are the programs of TPS659413-Q1 and TPS659411-Q1 burned out of the factory?

    2、Among them, TPS65941212, TPS65941111, TPS659413-Q1 and TPS659411-Q1 are different endings representing different chip programs?Do you have relevant information?

    3、The following block diagram is the power supply scheme you recommended to use TPS65941212 + TPS65941111, in which AVS adopts three channels BUCK power supply, while we use TPS659413-Q1 +TPS659411-Q1 in EVM, in which AVS adopts two channels BUCK power supply. What are the risks?

  • 0 in reply to liangmiao li
    TI__Guru 63591 points

    Hello,

    liangmiao li said:
    Our TDA4 power supply system is designed in the way of TPS659413-Q1+TPS659411-Q1 (the details are shown below). Is it ok if our company keeps this design unchanged? Are the programs of TPS659413-Q1 and TPS659411-Q1 burned out of the factory?

    No.  The PTPS659413-Q1 and the PTPS659411-Q1 are no longer available.  This implementation is no longer supported.  Please move to the TPS65941212+TPS65941111 solution or the recommended PTPS65941213+TPS65941111.

    liangmiao li said:
    Among them, TPS65941212, TPS65941111, TPS659413-Q1 and TPS659411-Q1 are different endings representing different chip programs?Do you have relevant information?

    The documentation regarding the PTSP659413+PTPS659411 has been removed from ti.com.  Please refer to the user guide for a description of the TPS65941212+TPS65941111 solution.

    liangmiao li said:
    The following block diagram is the power supply scheme you recommended to use TPS65941212 + TPS65941111, in which AVS adopts three channels BUCK power supply, while we use TPS659413-Q1 +TPS659411-Q1 in EVM, in which AVS adopts two channels BUCK power supply. What are the risks?

    The 2-phase implementation will not support the peak load currents required by the TDA4.  

    Regards,

    Chris

  • 0 in reply to Chris Sterzik
    Prodigy 30 points

    hello，

    I understand, we will switch to TPS65941212 + TPS65941111 power supply plan.

    To confirm again, the programs of TPS65941212, TPS65941111  BUCK, LDO and GPIO are delivered by default. Users do not need to define them by themselves

  • 0 in reply to liangmiao li
    Prodigy 30 points

    Do you have TDA4+TPS65941212+TPS65941111 reference schematic design?

  • 0 in reply to liangmiao li
    TI__Guru 63591 points

    Hello,

        Yes.  You are correct, 

    liangmiao li said:
    programs of TPS65941212, TPS65941111  BUCK, LDO and GPIO are delivered by default. Users do not need to define them by themselves

    We do not have a reference at this time.  The expectation is to use the previous reference, https://www.ti.com/lit/zip/sprr408, and make the necessary updates for the 3-phase implementation. 

    Regards,

    Chris