Product details

SetPoint type Resistor Programmable SetPoint value (deg C) -40 to 125 Operating temperature range (C) -40 to 125 Accuracy over temp range (Max) (C) 2 Sensor gain (mV/Deg C) 10 Output type Open Drain Supply voltage (Min) (V) 1.8 Supply voltage (Max) (V) 18 Supply current (Typ) (uA) 110 Comparator channels (#) 1 Features Built-in hysteresis Rating Catalog Interface type Analog output, Switch
SetPoint type Resistor Programmable SetPoint value (deg C) -40 to 125 Operating temperature range (C) -40 to 125 Accuracy over temp range (Max) (C) 2 Sensor gain (mV/Deg C) 10 Output type Open Drain Supply voltage (Min) (V) 1.8 Supply voltage (Max) (V) 18 Supply current (Typ) (uA) 110 Comparator channels (#) 1 Features Built-in hysteresis Rating Catalog Interface type Analog output, Switch
SOT-23 (DBV) 6 5 mm² 2.9 x 1.6 SOT-SC70 (DCK) 6 4 mm² 2 x 2.1
  • Accuracy: ±1°C (Typical at +25°C)
  • Programmable Trip Point
  • Programmable Hysteresis: 5°C/10°C
  • Open-Drain Outputs
  • Low Power: 110µA (Max)
  • Wide Voltage Range: +1.8V to +18V
  • Temperature Range: –40°C to +125°C
  • Analog Out: 10mV/°C
  • SC70-6 and SOT23-6 Packages
  • Accuracy: ±1°C (Typical at +25°C)
  • Programmable Trip Point
  • Programmable Hysteresis: 5°C/10°C
  • Open-Drain Outputs
  • Low Power: 110µA (Max)
  • Wide Voltage Range: +1.8V to +18V
  • Temperature Range: –40°C to +125°C
  • Analog Out: 10mV/°C
  • SC70-6 and SOT23-6 Packages

The TMP300 is a low-power, resistor-programmable, digital output temperature switch. The device allows a threshold point to be set by adding an external resistor. Two levels of hysteresis are available. The TMP300 has a VTEMP analog output that can be used as a testing point or in temperature-compensation loops.

With a supply voltage as low as 1.8V and low current consumption, the TMP300 is ideal for power-sensitive systems.

Available in two micropackages that have proven thermal characteristics, this part gives a complete and simple solution for users who need simple and reliable thermal management.






The TMP300 is a low-power, resistor-programmable, digital output temperature switch. The device allows a threshold point to be set by adding an external resistor. Two levels of hysteresis are available. The TMP300 has a VTEMP analog output that can be used as a testing point or in temperature-compensation loops.

With a supply voltage as low as 1.8V and low current consumption, the TMP300 is ideal for power-sensitive systems.

Available in two micropackages that have proven thermal characteristics, this part gives a complete and simple solution for users who need simple and reliable thermal management.






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Technical documentation

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Type Title Date
* Data sheet TMP300 1.8-V, Resistor-Programmable Temperature Switch and Analog Out Temperature Sensor in SC70 datasheet (Rev. E) 21 Dec 2018
Technical article How to choose the right thermistor for your temperature sensing application 13 Feb 2020
Technical article How to enable thermal safety for automotive infotainment and cluster systems 15 Oct 2019
Technical article Driving industrial innovation with small-size sensors 12 Sep 2019
Technical article How to select a temperature sensor probe 18 Feb 2016

Design & development

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

Simulation model

TMP300 PSpice Model (Rev. A)

SBOM955A.ZIP (21 KB) - PSpice Model
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Package Pins Download
SC70 (DCK) 6 View options
SOT-23 (DBV) 6 View options

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