• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 30 subscribers
  • Views 204 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPA6211A1-Q1: Short circuit of PIN5 and PIN7 occurred on several products

Tommy
Intellectual 310 points
Part Number: TPA6211A1-Q1
Other Parts Discussed in Thread: TPA6211A1

Hi E2E,

Our customers have found short circuits between PIN5 and PIN7 on multiple products in their applications.

The SCH as followed:

The power supply is provided by MPQ4423HGQ-AECQ, and the loudspeaker is KPB3642SP1-8222.

Are there any circuits on the schematic that need to be corrected?

Thanks

  • 0
    TI__Guru** 100855 points

    Hi Tommy,

    The schematic for TPA6211A1 itself looks OK.
    The speaker specs also seem OK for this amplifier.

    Is customer running tests on the supply side of the circuit? Make sure the regulation is proper across different test cases. Would also check the PCB layout, how VO+ is routed to the speaker, is there any possible short to GND or higher voltage rail? Please notice the device is able to protect against short to voltage up to VDD, higher voltage than VDD may cause damage to the device.

    Best regards,
    -Ivan Salazar
    Applications Engineer