Pin-Selectable Trip Point 1.4V-Capable Family of Temperature Switches


Product details


SetPoint type Pin-Selectable SetPoint value (deg C) 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125 Operating temperature range (C) -40 to 125 Accuracy over temp range (Max) (C) 2 Output type Open Drain Supply voltage (Min) (V) 1.4 Supply voltage (Max) (V) 3.6 Supply current (Typ) (uA) 8 Comparator channels (#) 1 Features Built-in hysteresis Rating Catalog Interface type Switch open-in-new Find other Temperature switches

Package | Pins | Size

SOT-5X3 (DRL) 6 2 mm² 1.65 x 1.2 open-in-new Find other Temperature switches


  • Low Power: 15 µA (Maximum)
  • SOT563 Package: 1.6-mm × 1.6-mm × 0.6 mm
  • Trip-Point Accuracy: ±0.2°C (Typical) From +40°C to +125°C
  • Pin-Selectable Trip Points
  • Open-Drain Output
  • Pin-Selectable Hysteresis: 5°C and 10°C
  • Low Supply Voltage Range: 1.4 V to 3.6 V

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The TMP302 device is a temperature switch in a micropackage (SOT563). The TMP302 offers low power (15-µA maximum) and ease-of-use through pin-selectable trip points and hysteresis.

These devices require no additional components for operation; they can function independent of microprocessors or microcontrollers.

The TMP302 is available in several different versions. For additional trip points, contact a TI representative.



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Technical documentation

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Type Title Date
* Data sheet TMP302 Easy-to-Use, Low-Power, Low-Supply Temperature Switch in Micropackage datasheet (Rev. E) Dec. 21, 2018
E-book Ein Techniker-Leitfaden für Industrieroboter-Designs Mar. 25, 2020
Technical article How to choose the right thermistor for your temperature sensing application Feb. 13, 2020
E-book E-book: An engineer’s guide to industrial robot designs Feb. 12, 2020
Technical article How to enable thermal safety for automotive infotainment and cluster systems Oct. 15, 2019
Technical article Driving industrial innovation with small-size sensors Sep. 12, 2019
Application note How to Protect Control Systems From Thermal Damage (Rev. A) Jan. 09, 2019
Technical article A key to accurate system thermal management: monitoring both current flow and temperature Oct. 04, 2018

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

document-generic User guide

Speed up your op amp prototyping and testing with the DIP-Adapter-EVM, which provides a fast, easy and inexpensive way to interface with small, surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them directly to existing circuits.

The (...)

  • Simplifies prototyping of SMT IC’s
  • Supports 6 common package types
  • Low Cost
document-generic User guide
The BOOSTXL-3PHGANINV evaluation module features a 48-V/10-A three-phase GaN inverter with precision in-line shunt-based phase current sensing for accurate control of precision drives such as servo drives.

MathWorks MATLAB & Simulink example models include the following:

  • Wide Input Voltage Range 12-V to 60-V Three Phase GaN Inverter with 7-ARMS Output Current per Phase
  • High Accuracy Phase Current Sensing Over Temperature Range From –25°C to 85°C
  • Precision In-Line Phase Current Sensing
  • TI BoosterPack Compatible Interface

Get started

  • See the Get Started sections of (...)

Reference designs

TUV-assessed digital input reference design for IEC 61508 (SIL-2)
TIDA-010049 — This 8-channel, group-isolated, digital input module reference design, focuses on applications with the need for industrial functional safety. This design has diagnostics implemented to help detect both permanent and transient random hardware faults. The concept of this input module has been (...)
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24-V, 480-W Nominal 720-W peak, >93.5% efficient, robust AC/DC industrial power supply reference
TIDA-01494 — The TIDA-01494 reference design is a compact, high efficiency, 24-V DC, 480-W nominal, 720-W peak output reference design for industrial AC/DC power supplies. The circuit consists of a front-end continuous conduction mode (CCM) power factor correction (PFC) circuit followed by a robust LLC stage (...)
document-generic Schematic document-generic User guide
Accurate Temperature, Light Sensing, and Diagnostics Reference Design for Smart Grid Applications
TIDA-00811 — This reference design provides accurate measurements of ambient light intensity used to detect arc flash faults with a fast response of 1 ms, protecting or minimizing damages to power distribution switchgear. This design also monitors temperature (using switch, analog, digital or remote ), humidity (...)
document-generic Schematic document-generic User guide
100W, 24V High Efficiency High PF Industrial Power Supply with Precision Current & Power Limit
TIDA-00701 TIDA-00701 is a 100W, 24V, Industrial AC-DC power supply designed for use in Industrial & Instrumentation systems such as process controls, factory automation and machinery control. This reference design has front end Power Factor Correction (PFC) circuit designed using UCC28051 PFC controller (...)
document-generic Schematic document-generic User guide
60W, 24V High Efficiency Industrial Power Supply with Precision Voltage, Current and Power Limit
TIDA-00702 The TIDA-00702 is a 60-W, industrial AC-DC power supply designed for use in industrial and instrumentation systems such as process controls, factory automation, and machinery control. This reference design is a Quasi-resonant (QR) flyback converter implemented using the UCC28740 CC-CV flyback (...)
document-generic Schematic document-generic User guide
Basic Fan Controller Reference Design with Over-Temperature Detection
TIDA-00517 TIDA-00517 provides a complete reference design for basic fan control leveraging minimal components.  This design features a TMP302 temperature switch to detect over temperature conditions in personal electronics, industrial PCs, power distribution units and other applications leveraging fans (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

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SOT-5X3 (DRL) 6 View options

Ordering & quality

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