• Locked Locked
  • Replies 1 reply
  • Subscribers 62 subscribers
  • Views 723 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.

TPS65145: TPS65145 Output Drop at Low Ambient Temperature

Shaquille Chen
Intellectual 1770 points
Part Number: TPS65145
Other Parts Discussed in Thread: TPS65140

Hi Team,

Customer found that one of TPS65145 output drop at lower ambient test.

The device behave normal before temperature down to minus 5 degree C.

Then they put this NG device on TPS65140 EVM but still show the same behavior.

What's the possible problem of this part?

The EVM result as below:

Normal:

Voltage Drop:

  • TI__Guru 58225 points

    Hello Shaquille,

    If this is a behavior of just one unit, then I would recommend to open a failure analysis report and with the needed information send the device back to TI for failure analysis.

    If this behavior is the same for several devices, we can go on with applicative problem solving.

    In any case, please try to detail as much as possible the moment when this problem occurs. Input voltage, output voltages, output loads, you mentioned temperature, has there been other tests before the failure was observed.

    Best regards,
    Brigitte