TPA6211A1-Q1: TPA6211A1-Q1

Part Number: TPA6211A1-Q1

Dear sir:

Good day!!

May I have some question regarding the TPA6211A1-Q1 part?

(1)Would you have any information for understanding "What is the Max. power consumption (VDD pin ) from spec.(datasheet)?"

(2)Is that Max. power consumption related ambiance temperature or ....any other condition

     (ex: Use Speaker  4ohm or 8ohm,...and Application for single End mode,differential mode.)?

     

Thanks

     

33 Replies

  • Hello Talex

    Welcome to E2E, thanks for your interest in our products.
    1)You can refer Fully Differential Amplifier Efficiency and Thermal Information section of the amplifier's datasheet where you can find all this information.
    2)Yes, it is. The power dissipation depends on ambient temperature and the heat sinking ability of the PCB system.

    Best Regards
    José Luis Figueroa
    Audio Applications Engineer

  • In reply to José Luis:

    Dear sir:

    thanks for your reply.

    But ,Sorry,May I double confirming that :

    (2) Is that your meaning which one ?

    (A)refer the document PAGE 6 7.7 Dissipation Ratings
    or
    (B)refer the document PAGE6 and PAGE 11
    7.8 Typical Characteristics ==>Table 1. Table of Graphs==>IDD Supply current==>vs Supply voltage
    ==>Figure 25. Supply Current vs Supply Voltage
    ==>Base on the curve VDD=5V ,IDD seesm only under Max 4.3mA~4.4mA(TA=125) ,Max 3.3mA~3.4mA(TA=25)

           Max Power consumption is 5Vx 4.4mA =22 mW for 4.3mA~4.4mA(TA=125) ,Max Power consumption is 5Vx 3.4mA =17 mW for Max 3.3mA~3.4mA(TA=25)
    or
    (C)refer the document PAGE14
    ==>Table 2. Efficiency and Maximum Ambient Temperature vs Output Power
    ==>Under 85 degree ,VDD=5V,When use Speaker 8 ohm
    Max power consumption from VDD pin is 2.08W and Max current consuption is 2.08W/5V=0.754A
           Under 85 degree ,VDD=5V,When use Speaker 4 ohm
    Max power consumption from VDD pin is 3.77W and Max current consuption is 3.77W/5V=0.416A

    (3)Is that Max. power consumption&current power consumption related except ambiance temperature have any other condition

         (ex: Application for single End mode,differential mode.)?

         Would you help provide detail calculator for example for us reference ?

         (Base on condition: Speaker 8ohm ,TPA6211A1-Q1 application for single End mode ,ambiance temperature 25 room temperature) 

    (4)Is maximum power consumption according above calculation result ? (RMS value or Peak value or Avg value?) 

    (5)Is maximum current consumption according above calculation result ? (RMS value or Peak valueor Avg value?) 

         (Change another word: Is that your meaning according to the document page 13 mention that "IDDavg = Average current drawn from the power supply"

            therefore, that calculation  maximum current consumption result is Avg value not Peak value ,Right? )

    Thanks

  • In reply to TAlex Wu:

    TAlex,

    2)Dissipation Ratings are the maximum values that these packages endure (DGN and DRB). Table 2. Efficiency and Maximum Ambient Temperature vs Output Power are measured values under the shown conditions in the table.
    3) The power dissipation depends on load, input mode, ambient temperature and the heat sinking ability of the PCB system. Class-AB amplifiers are inefficient, primarily because of the voltage drop across the output-stage transistors. The total voltage drop can be calculated by subtracting the RMS value of the output voltage from Vdd. The internal voltage drop multiplied by the average value of the supply current Idd(avg), determines the internal power dissipation of the amplifier. Effectively, it is the supply current average value.

    Best Regards
    José Luis Figueroa
    Audio Applications Engineer
  • In reply to José Luis:

    Dear SIR:

    thanks for your reply.

    But ,Sorry,May I double confirming that :

    (Q3)Is that Max. Input power consumption & Input current power consumption related Application for single End mode,differential mode.?

    Would you help provide detail calculator for example for us reference

    (Change another word: Would you calculate It to show me for reference base on condition: Speaker 8ohm ,TPA6211A1-Q1 application for single End mode ,ambiance temperature 25 room temperature ,DRB  PACKAGE)?


    (Q6) Did  TPA6211A1-Q1 have  information as below(for example) for VDD pin?



    Thanks

  • In reply to TAlex Wu:

    Dear SIR:

    Would you have any update ?

    thanks
  • In reply to TAlex Wu:

    TAlex Wu,

    Q3) You can get the power dissipation with the next formula: Pd=PL-Psup
    Where:
    Pd = Power dissipation
    PL = Power delivered to load
    Psup = Power drawn from power supply
    You need to set an input signal in your system in order to measure PL and Psup. As I mentioned the power dissipation also depends on the heat sinking ability of the PCB, so I recommend you to measure these parameters in your system.

    Q6)Unfortunately, the amplifier's datasheet doesn't have this information.

    Best Regards
    José Luis Figueroa
    Audio Applications Engineer
  • In reply to José Luis:

    Did not resolved my issue According to the reply that mention "the amplifier's datasheet doesn't have this information" and can't provide the detail example and information.

    If that reply  "the amplifier's datasheet doesn't have this information" and can't provide the detail example and information.

    I have no idea and understanding that reply "How to solved my issue and question ".

  • In reply to TAlex Wu:

    TAlex Wu,

    You can refer the Electrical Characteristics section of the amplifier's datasheet to find the Quiescent current that is the Vdd pin current.

    Best Regards
    José Luis Figueroa
    Audio Applications Engineer

  • In reply to José Luis:

    Did not resolved my issue According to the reply that mention "the amplifier's datasheet doesn't have this information" and can't provide the detail example and information.

    If that reply  "the amplifier's datasheet doesn't have this information" and can't provide the detail example and information.

    I have no idea and understanding that reply "How to solved my issue and question ".

    And your reply did not match us question ,always. (I never question regarding "Quiescent current that is the Vdd pin current")

    Reiterated our question as below,again:

    May I have another question that "When could you reply  & match & make sure solved my question ? " before "TI Thinks Resolved".

    ============================================================================================================

    (Q3)Is that Max. Input power consumption & Input current power consumption related Application for single End mode,differential mode.?

    Would you help provide detail calculator for example for us reference

    (Change another word: Would you calculate It to show me for reference base on condition: Speaker 8ohm ,TPA6211A1-Q1 application for single End mode ,ambiance temperature 25 room temperature ,DRB  PACKAGE)?

    (Q6) Did  TPA6211A1-Q1 have  information as below(for example) for VDD pin?

  • In reply to TAlex Wu:

    Did not resolved my issue According to the reply that mention "the amplifier's datasheet doesn't have this information" and can't provide the detail example and information.

    If that reply "the amplifier's datasheet doesn't have this information" and can't provide the detail example and information.

    I have no idea and understanding that reply "How to solved my issue and question ".

    And your reply did not match us question ,always. (I never question regarding "Quiescent current that is the Vdd pin current")

    Reiterated our question as below,again:

    May I have another question that "When could you reply & match & make sure solved my question ? " before "TI Thinks Resolved".

    ============================================================================================================

    (Q3)Is that Max. Input power consumption & Input current power consumption related Application for single End mode,differential mode.?

    Would you help provide detail calculator for example for us reference

    (Change another word: Would you calculate It to show me for reference base on condition: Speaker 8ohm ,TPA6211A1-Q1 application for single End mode ,ambiance temperature 25 room temperature ,DRB PACKAGE)?

    (Q6) Did TPA6211A1-Q1 have information as below(for example) for VDD pin?