Automotive grade, ±3°C 1.6V-5.5V capable, factory preset trip point temperature switch


Product details


SetPoint type Factory Programmed SetPoint value (deg C) Range (0 to 150), 130, 135 Operating temperature range (C) -40 to 150 Accuracy over temp range (Max) (C) 2.3 Sensor gain (mV/Deg C) -5.1 to -12.8 Output type Open Drain, Push Pull Supply voltage (Min) (V) 1.6 Supply voltage (Max) (V) 5.5 Supply current (Typ) (uA) 8 Comparator channels (#) 1 Features Built-in hysteresis Rating Automotive Interface type Analog output, Switch open-in-new Find other Temperature switches

Package | Pins | Size

WSON (NGF) 6 6 mm² 2.2 x 2.5 open-in-new Find other Temperature switches


  • Low 1.6-V Operation
  • Low Quiescent Current
  • Latching Function: Device Can Latch the Over Temperature Condition
  • Push-Pull and Open-Drain Temperature Switch Outputs
  • Wide Trip Point Range of 0°C to 150°C
  • Very Linear Analog VTEMP Temperature Sensor Output
  • VTEMP Output Short-Circuit Protected
  • Accurate Over –50°C to 150°C Temperature Range
  • Excellent Power Supply Noise Rejection
  • LM26LVQISD-130 and LM26LVQISD-135 are AEC-Q100 Qualified and are Manufactured on an Automotive Grade Flow:
    • Device Temperature Grade 0: –40°C to 150°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 3 A
    • Device CDM ESD Classification Level C6
    • Device MM ESD Classification Level M3
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The LM26LV and LM26LV-Q1 are low-voltage, precision, dual-output, low-power temperature switches and temperature sensors. The temperature trip point (TTRIP) can be preset at the factory to any temperature in the range of 0°C to 150°C in 1°C increments. Built-in temperature hysteresis (THYST) keeps the output stable in an environment of temperature instability.

In normal operation the LM26LV or LM26LV-Q1 temperature switch outputs assert when the die temperature exceeds TTRIP. The temperature switch outputs will reset when the temperature falls below a temperature equal to (TTRIP – THYST). The OVERTEMP digital output, is active-high with a push-pull structure, while the OVERTEMP digital output, is active-low with an open-drain structure.

The analog output, VTEMP, delivers an analog output voltage with Negative Temperature Coefficient (NTC).

Driving the TRIP_TEST input high causes the digital outputs to be asserted for in-situ verification and causes the threshold voltage to appear at the VTEMP output pin, which could be used to verify the temperature trip point.

The LM26LV’s and LM26LV-Q1’s low minimum supply voltage makes them ideal for 1.8-V system designs. The wide operating range, low supply current, and excellent accuracy provide a temperature switch solution for a wide range of commercial and industrial applications.

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Similar but not functionally equivalent to the compared device:
TMP390-Q1 ACTIVE Automotive grade, ultra-small, dual-channel, 0.5-μA, resistor-programmable temperature switch This product has a small package size (1.2mm x 1.6mm), lower IQ (1uA), and dual trip point outputs.

Technical documentation

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Type Title Date
* Data sheet LM26LV and LM26LV-Q1 1.6-V, WSON-6 Factory Preset Temperature Switch and Temperature Sensor datasheet (Rev. G) Sep. 06, 2016
Technical article How to choose the right thermistor for your temperature sensing application Feb. 13, 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
Technical article How to select a temperature sensor probe Feb. 18, 2016
User guide Using the LM26EVM Nov. 30, 2015

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

The LM26LVEVM allows users to evaluate the performance of the LM26LV temperature switch with factory programmed trip points and temperature sensor. The LM26LVEVM comes with a LM26LV factory programmed to trip at 80°C and headers to allow probing of the LM26LV pins.

  • Evaluate LM26LV performance
  • Headers allow probing of LM26LV pins
  • Jumper allows switching between trip test and temperature modes

CAD/CAE symbols

Package Pins Download
WSON (NGF) 6 View options

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