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TPS562201 OVP function

Hiromi Igari
Prodigy 260 points
Other Parts Discussed in Thread: TPS562201, TPS563200

Hi. Team,

I have a question of TPS562201. Does the TPS562201 have the OVP function? I could not find any OVP specification from the datasheet. However, The function block diagram of datasheet have the OVP circuit.

Please advise me.

Thanks and Regards,

H.Igari

  • 0
    TI__Intellectual 2590 points

    TPS562201 has OV comparator inside the IC, will shut down both high side and low side MOSFET when output voltage.

    IC dones't have any other action if OV, so don't write this in DS.

    thanks!

  • 0 in reply to Eric Guo1
    TI__Prodigy 260 points
    Hi. Eric-san,
    Thank you for reply.

    I understood it.
    And, I would like to know the OVP threshold. My understanding is When the feedback voltage becomes higher than 125% of the target output voltage. And, This function is non-latch operation.
    Is it right? Please advise me.

    Thanks and Regards,
    H.Igari
  • 0 in reply to Hiromi Igari
    TI__Intellectual 2590 points
    Hi Igari,

    For this part, we don't have the OVP number in side, TPS563200 has 125% OVP threshold. In DCAP control, buck will turn on high side for one fix on time if FB is less than Internal REF. After FB is higher than VREF, device will shut down high side, it has natural OVP function.
    Some device will enter hiccup mode if the FB over 125%REF, but this device doesn't have any this function.
    thanks!