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TPS63060: OVP behavior

K.Shidara
Expert 3225 points
Part Number: TPS63060

Hi Team,

Would you advise below my customer's question that

What happens if 4V is applied to the output side when using the TPS63060 with 3.6V output, for example?

According to the specification, there is a function called Overvoltage Protection, but will this function work and not destroy the chip?
Thanks
Best regards,
Shidara
  • 0
    TI__Intellectual 1700 points

    Hi Shidara-San,

    what would cause that votlage increase on the output?

    In general, this device has an output overvoltage protection (see dataheet 8.3.3), which limits the output voltage according to the threshold (MIN 12V, MAX 16V) defined in the electrical charateristics under "Control Stage".

    The device has two modes power safe mode (PSM) and PWM.

    If the device is in PSM mode and the voltage on the output of the device would be raised to 4V (output voltage set to 3.6V), the device would stop switching until the voltage drops below 3.6V.

    In PWM mode, the device would try to regulate the voltage down to it's target, by feeding the current back to the input. In this case the input voltage can be increased. This device has no input overvoltage protection, therefore this case needs attention.

    Best Regards,

    Moritz