LM26LV

ACTIVE

±3°C 1.6V-5.5V Capable, factory preset trip point temperature switch with analog outpu

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Product details

Parameters

SetPoint type Factory Programmed SetPoint value (deg C) Range (0 to 150), 50, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150 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 Catalog 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

Features

  • 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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Description

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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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 6
Type Title Date
* Datasheet LM26LV and LM26LV-Q1 1.6-V, WSON-6 Factory Preset Temperature Switch and Temperature Sensor datasheet (Rev. G) Sep. 06, 2016
Technical articles How to choose the right thermistor for your temperature sensing application Feb. 12, 2020
Technical articles How to enable thermal safety for automotive infotainment and cluster systems Oct. 15, 2019
Technical articles Driving industrial innovation with small-size sensors Sep. 12, 2019
Technical articles How sensor technology is evolving to meet cold chain needs Jun. 18, 2018
User guides LM26LVEVM User's Guide Sep. 11, 2015

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
499
Description

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.

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

Reference designs

REFERENCE DESIGNS Download
2460-W bidirectional boost converter reference design for automotive applications
PMP22396 — This reference design is a 2460-W bidirectional boost converter for automotive applications. The circuit is powered from the nominal 12-V battery to provide an output voltage of 48 V at 51.25 A. The design uses two dual-phase synchronous bidirectional controllers operating at a switching frequency (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
12-V / 100-A negative-to-positive synchronous buck-boost reference design for power amplifiers
PMP21867 — This reference design is a negative-to-positive synchronous buck-boost converter for power amplifier applications. The circuit is powered from the nominal -48-V system source to provide an output voltage of +12 V at 100 A. The design uses two dual synchronous boost controllers for 4-phase operation (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
1000-W, Bidirectional, 12-V to 12-V Converter Reference Design
PMP15035 — This reference design is a dual-channel, bidirectional converter suitable for 12-V to 12-V, dual-battery system, automotive applications. This reference design has a wide input range (3 V to 40 V) and could give full load (1kW) in the input voltage from 9V to 18V by using two LM5170-Q1 controllers (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
WSON (NGF) 6 View options

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