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TDA2HV: TDA2HVBRQABCRQ1 Sleep mode/ Power down mode

DHAVAL SHAH
Intellectual 390 points
Part Number: TDA2HV
Other Parts Discussed in Thread: TDA2

Hi Support Team,


We are used TDA2HVBRQABCRQ1 TI TDA2HV processor in our one of the automotive product. But we facing the issue that if we want to run up our system on sleep mode or power down mode to reduce the boot up time and use of battery . which pin are available in this TDA2HVBRQABCRQ1 part. Please provide any reference for that.

Hope positive response from you

  • 0
    TI__Mastermind 22300 points
    Hi Dhaval,
    Can you please tell a little more about your use case? For example when (e.g. ignition at MAR but car not started, etc.) you would like to put TDA2 in sleep mode, for how long time, etc.?
    Unfortunately there is no magic pin to put TDA2 in sleep (I wish it had) . It is a combination of software and hardware (SoC, PMIC, DDR) to enable low-power modes.

    Regards,
    Stan
  • 0
    TI__Expert 4885 points
    Hi, ,

    I am not quite sure what kind of issue you are facing? Please, specify.
    Also, what kind of pins you are trying to locate?

    Regards,
    Mariya
  • 0 in reply to Stanislav Stilyanov
    Intellectual 390 points

    Hi Stan,

    Thanks For you valuable reply.

    Actually we want to give facilities in our hardware. So we want to know how it will be implement in hardware side, software side guys are at definition stage.

    As our discussion you said that It is a combination of software and hardware (SoC, PMIC, DDR) to enable low-power modes. In PMIC there is PMIC_SLEEP# Pin which help full to run the PMIC in sleep mode but What we do on TDA2X side & DDR3 side to run the processor in low power mode /sleep mode?

    Best Regards 

    Dhaval Shah

  • 0 in reply to Mariya Petkova
    Intellectual 390 points
    Hi Mariya,

    Thanks For your reply

    Actually we want to give facilities in our hardware. So we want to know how it will be implement in hardware side, Software side guys are at definition stage.

    Best Regards
    Dhaval Shah
  • 0 in reply to DHAVAL SHAH
    TI__Mastermind 22300 points

    Hi Dhaval,

    Since I didn't knew your exact PMIC part number, I took a random PMIC. The SLEEP pin may be on another position than this one.

    I've highlighted the pins you need to put the SoC in RTC mode (lowest possible). RTC mode is defined as everything but RTC domain is off. DDR can be in self-refresh ( this must be double checked though) . One can exit RTC power mode through a RTC alarm or an WAKEUP pin transition. Note that it is possible to wake up through DCAN RX pin i.e. upon a CAN bus activity. I.e. DCAN RX pin is muxed with an WAKEUP pin internally.

    Regards,

    Stan