LM50B

LM50B is a Temperature sensor IC manufactured by Texas Instruments. This section describes the LM50B component specifications, component software interface specifications, OSS-EC specifications, and Test specifications & result. Also, OSS-EC program and documentations downloads:

Components specifications

This section describes the LM50B component specifications.

Manufacturer nameTexas Instruments
Category1   Sensor
Category2 -                        
Category3 A/D converter
Components Classification  Temperature sensor
Model NumberLM50B      Datasheet  

Overview

The LM50 and LM50-Q1 devices are precision integrated-circuit temperature sensors that can sense a –40°C to 125°C temperature range using a single positive supply. The output voltage of the device is linearly proportional to temperature (10 mV/°C) and has a DC offset of 500 mV. The offset allows reading negative temperatures without the need for a negative supply. The ideal output voltage of the LM50 or LM50-Q1 ranges from 100 mV to 1.75 V for a –40°C to 125°C temperature range. The LM50 and LM50-Q1 do not require any external calibration or trimming to provide accuracies of ±3°C at room temperature and ±4°C over the full –40°C to 125°C temperature range. Trimming and calibration of the LM50 and LM50-Q1 at the wafer level assure low cost and high accuracy. The linear output, 500 mV offset, and factory calibration of the LM50 and LM50-Q1 simplify the circuitry requirements in a single supply environment where reading negative temperatures is necessary. Because the quiescent current of the LM50 and LM50-Q1 is less than 130 µA, self-heating is limited to a very low 0.2°C in still air.

Features

  • LM50-Q1 is AEC-Q100 Grade 1 Qualified and is Manufactured on an Automotive Grade Flow
  • Calibrated Directly in Degrees Celsius(Centigrade)
  • Linear + 10 mV/°C Scale Factor
  • ±2°C Accuracy Specified at 25°C
  • Specified for Full –40° to 125°C Range
  • Suitable for Remote Applications
  • Low Cost Due to Wafer-Level Trimming
  • Operates From 4.5 V to 10 V
  • Less Than 130-µA Current Drain
  • Low Self-Heating: Less Than 0.2°C in Still A
  • Nonlinearity Less Than 0.8°C Over Temp

Application

  • Automotive
  • Computers
  • Disk Drives
  • Battery Management
  • FAX Machines
  • Printers
  • Portable Medical Instruments
  • HVAC
  • Power Supply Modules

Component software interface specifications

LM50B

Test specifications & result

LM50B 00000057

LM50B 00000058

OSS-EC program and documentations download

OSS-EC program and documentations downloads can be found in the table below.

OSS-EC
specifications
OSCalculationFilterDiagnosis
& Failsafe
Download
New
00000057
Arduino Library
HAL:Arduino
OS:Free-RTOS
floating-pointSelect
– Non
– SMA
– EMA
– WMA
Physical value
Min to Max
TI_LM50B_00000057

New
00000058
Mbed
HAL:Mbed
OS:Mbed
floating-pointSelect
– Non
– SMA
– EMA
– WMA
Physical value
Min to Max
TI_LM50B_00000058

Arduino LibraryHAL:Arduino
OS:Free-RTOS
integerSelect
– Non
– SMA
– EMA
– WMA
Physical value
Min to Max
Release soon
MbedHAL:Mbed
OS:Mbed
integerSelect
– Non
– SMA
– EMA
– WMA
Physical value
Min to Max
Release soon
AUTOSARHAL:M-CAL
OS:OSEK
floating-pointSelect
– Non
– SMA
– EMA
– WMA
Physical value
Min to Max
Release soon
AUTOSARHAL:M-CAL
OS:OSEK
integerSelect
– Non
– SMA
– EMA
– WMA
Physical value
Min to Max
Release soon

OSS-EC Site