SBOS335E June   2005  – December 2018 TMP300

PRODUCTION DATA.  

  1. 1Features
  2. 2Applications
  3. 3Description
    1.     Device Images
      1.      Pinout
      2.      Application Schematic
  4. 4Revision History
  5. 5Pin Configuration and Functions
    1.     Pin Functions
  6. 6Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Electrical Characteristics
    4. 6.4 Typical Characteristics
  7. 7Detailed Description
    1. 7.1 Overview
    2. 7.2 Feature Description
      1. 7.2.1 Calculating RSET
      2. 7.2.2 Using VTEMP to Trip the Digital Output
      3. 7.2.3 Analog Temperature Output
      4. 7.2.4 Using a DAC to Set the Trip Point
      5. 7.2.5 Hysteresis
  8. 8Device and Documentation Support
    1. 8.1 Receiving Notification of Documentation Updates
    2. 8.2 Community Resources
    3. 8.3 Trademarks
    4. 8.4 Electrostatic Discharge Caution
    5. 8.5 Glossary
  9. 9Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

Calculating RSET

The set resistor (RSET) provides a threshold voltage for the comparator input. The TMP300 trips when the VTEMP pin exceeds the TSET voltage. The value of the set resistor is determined by the analog output function and the 3μA internal bias current.

To set the TMP300 to trip at a preset value, calculate the RSET resistor value according to Equation 1 or Equation 2:

Equation 1. TMP300 q_rset_tset_sbos335.gif

where

  • TSET is in °C; or
Equation 2. TMP300 q_rset_kohm_sbos335.gif

where

  • TSET is in °C.