SBOS335F June   2005  – January 2023 TMP300

PRODUCTION DATA  

  1. 1Features
  2. 2Applications
  3. 3Description
  4. 4Revision History
  5. 5Pin Configuration and 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 Support 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

7.2.5 Hysteresis

The hysteresis pin has two settings. Grounding HYSTSET results in 5°C of hysteresis. Connecting HYSTSET to VS results in 10°C of hysteresis. Figure 7-5 and Figure 7-6 show the hysteresis error variation over temperature.

GUID-E8932E8A-4D25-4145-B354-AE8F865564A8-low.gifFigure 7-5 5°C Hysteresis Error vs Temperature
GUID-97799E82-730B-4655-9AD2-FACCFB9E6C78-low.gifFigure 7-6 10°C Hysteresis Error vs Temperature

Use bypass capacitors on the supplies as well as on the RSET and analog out (VTEMP) pins when in noisy environments, as shown in Figure 7-7. These capacitors reduce premature triggering of the comparator.

GUID-F751B1F9-86E8-4945-9173-C29B69FD3A72-low.gifFigure 7-7 Bypass Capacitors Prevent Early Comparator Toggling Due to Circuit Board Noise