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TMP300 active

Max Roh
Expert 4185 points
Other Parts Discussed in Thread: TMP300

Hi team,

Regarding to TMP300 temp sensor, I have a question to DWIN.
This is temp switch from -40 to 150. When I set Rtemp 180K for 0'c. Does it output switch only at 0'C? or From -40'C to 0'C?
I meant TMP300 measure only Rtemp point or section with Rtemp point?

If it is for section with Rtemp point, high active or low active?

Thanks in advance.

  • 0
    TI__Expert 7945 points

    Hello Max,

    If you set the temperature resistor Rtemp to a particular value, OUT will toggle only when temperature exceeds the set temperature setting. 0deg C in your case.

    OUT signal is open drain output (Low active). So when Rset temperature > measured temp, OUT = HIGH similarly when Rset temperature < measured temp, OUT = LOW (active)

    Best Regards,

    Abhi