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  • TPA3131D2: Query for TPA3131D2

    TI Thinks Resolved
    Part Number: TPA3131D2 Hi Team My customer is using TPA3131D2 to drive speaker. they find there is a fault when power up the device as configuring gain as 32db( the following picture is the waveform of startup. the channel 1 is Fault signal). If they…
    • Answered

  • TPA3131D2: Bootstrap capacitors in PBTL design

    Resolved
    Part Number: TPA3131D2 Hi, we're having some issues on some of our amplifier boards, where 10 out of 50 boards fail with FAULT pin going low. It seems like it is the DC protection that kick in, as we're measuring about 6.5v on one of the outputs (OUTPL…
    • Resolved

  • TPA3131D2: Can PLIMIT be changed dynamically?

    TI Thinks Resolved
    Part Number: TPA3131D2 Hi Team, We would like to adjust power limit dynamically with the TPA3131D2. Can we do it by changing the voltage on the PLIMIT pin on the fly? Thanks! Roy

  • TPA3131D2: About the unused input pin in a single-ended application

    TI Thinks Resolved
    Part Number: TPA3131D2 Hi Team, I have one question on the statement below. "In a single-ended input application, the unused input should be ac grounded at the audio source instead of at the device input for best noise performance" If ac grounding…

  • TPA3131D2: TPA3131D2 output filter

    TI Thinks Resolved
    Part Number: TPA3131D2 Hi, TPA3131 is filter free class D audio PA, is it ok if I use TPA3131 without LC filter and ferrite bead filter? And is there any requirement on minimum capacitor need to place on the speaker line? Best regards, Zoe

  • TPA3131D2: MONO config, can output floating?

    TI Thinks Resolved
    Part Number: TPA3131D2 Hi Team, Customer only need one channel from TPA3131, can we float the output pins? (BSPL/ BSNL/ OUTPL / OUTNL) And short INNL and INPL directly to the GND. Anything else needs to do? Thanks! Andrew

  • TPA3131D2: GVDD external current limit

    TI Thinks Resolved
    Part Number: TPA3131D2 Can the datasheet conditions of <200uA be drawn externally through the PLIMIT resistor? The datasheet recommends 100k ohm resistors, but can 40k ohm range be used as long as the external current is below 200uA?
    • Answered

  • TPA3131D2: Can TPA3131 Support 12.5W with 8ohm Load?

    Resolved
    Part Number: TPA3131D2 Other Parts Discussed in Thread: TPA3132D2 Hi Sirs, As title, can TPA3131 support 12.5W, 8ohm load? Are the TPA3132 for 2W and TPA3131 for 12.5W typo with the datasheet? Thank you and Best regards, Wayne Chen 06/28/2
    • Resolved
    • Answered

  • TPA3131D2: Overcurrent testing

    Resolved
    Part Number: TPA3131D2 How can I test the 3.4A typical overcurrent trip point on the device for an over current fault? I have tried an OUTNx short to GND and a short across OUTNL/R (load) without being able to create a FAULTZ low. Please advise how to…
    • Resolved

  • TPA3131D2: Support 2W with 5V supply?

    TI Thinks Resolved
    Part Number: TPA3131D2 Hi Team, Customer wants to double check if this device can support 2W speaker at 8 ohms? (THD < 0.1%) We can use either PLIMIT or input divider to limit the actual output power to make sure it's not exceeding 2W, correct?…

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