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TPS51200: V-vosns specificaition

Robert Fusco
Prodigy 120 points
Part Number: TPS51200


Vvosns spec is split into two rows.  Can values be combined into one row.  Example:  Row 1 , TYP -= 1.25V.   Row 2 -15mV MIN and +15mV max

Can we subtract / add MIN and MAX values to the TYP value to determine range for VOSNS output voltage and tolerance?

i.e.  for VREFOUT = 1.25V, Vvosns MIN = 1.235V, TYP = 1.25V, MAX = 1.265V?  and so on for the other voltages?

  • 0
    Prodigy 120 points
    VOSNS is an input. But PARAMETER is Output DC Voltage, VO
    Looks like the +/-15mV is the input offset voltage of the comparator, i.e. will detect over or under voltage if >15mV from VREFOUT. Why call this an Output Voltage?
  • 0 in reply to Robert Fusco
    TI__Mastermind 24075 points
    Hi Robert,

    It is doable to subtract/add min and max value to the typical value. However, since the current spec is clear to user, we don't have plan to change it.

    The VOSNS spec refers to the output voltage variation, the parameter "Output DC voltage, VO" is correct.

    Thanks
    Qian
  • 0 in reply to Qian Chen
    Prodigy 120 points

    After further consideration, I agree it is better to keep the VREFOUT nominal voltage separate from the +/- 15mV Vvosns input offset voltage.

    Vvonss Input Offset voltage varies with VREFOUT, so specifying it 1.235V to 1.265V would be incorrect.  +/- 15mV is the threshold for triggering UV or OV condition.

    Thanks