National Semiconductor LM26LV Datasheet

LM26LV is a low-voltage, precision, dual-output, low-power temperature switch and temperature sensor. 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 temperature switch outputs assert when the die temperature exceeds TTRIP. The temper- ature 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. An analog output, VTEMP, delivers an analog output voltage which is inversely proportional to the measured temperature. Driving the TRIP TEST input high: (1) causes the digital out- puts to be asserted for in-situ verification and, (2) causes the threshold voltage to appear at the VTEMP output pin, which could be used to verify the temperature trip point. The LM26LV's low minimum supply voltage makes it ideal for 1.8 Volt system designs. Its wide operating range, low supply current , and excellent accuracy provide a temperature switch solution for a wide range of commercial and industrial appli- cations.


National Semiconductor LM26LV Datasheet - cover page
Brand
National Semiconductor
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
20
File format
PDF
File size
558 KB
Published
03 May, 2012
Updated
30 September, 2023
MD5 checksum
D34C69467F1B1FC777959D7CFFD21409

About this manual

The LM26LV is a low‑voltage, precision, dual‑output temperature switch and sensor designed for 1.6 V to 5.5 V systems. It provides both digital over‑temperature outputs (active‑high push‑pull and active‑low open‑drain) and an analog voltage output proportional to temperature.

Key features include a wide trip‑point range (0 °C to 150 °C), low quiescent current, high accuracy (±2.2 °C trip‑point, ±2.3 °C analog), and a compact 6‑lead LLP‑6 package (2.2 mm × 2.5 mm). The datasheet lists electrical characteristics, pin descriptions, ordering information, and mechanical dimensions.

What's inside

  • General Description
  • Features
  • Key Specifications
  • Pin Descriptions
  • Electrical Characteristics
  • Absolute Maximum Ratings
  • Ordering Information
  • Physical Dimensions
  • Notes

Specifications

Supply Voltage1.6 V to 5.5 V
Supply Current8 µA (typ)
Trip Point Accuracy±2.2 °C (0 °C‑150 °C)
Analog Output Accuracy±2.3 °C (0 °C‑150 °C)
Package Size2.2 mm × 2.5 mm (typ) LLP‑6
Operating Temperature Range-50 °C to 150 °C

Frequently asked questions

What is the supply voltage range for the LM26LV?

The LM26LV operates from 1.6 V to 5.5 V supply voltage.

What is the typical supply current of the LM26LV?

Typical supply current is 8 µA.

What is the accuracy of the temperature trip point?

The trip point accuracy is ±2.2 °C over the 0 °C‑150 °C range.

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