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LM75 Digital Temperature Sensor and Thermal …
LM75 Digital Temperature Sensor and Thermal watchdog withTwo-Wire InterfaceGeneral DescriptionTheLM75isatemperaturesensor,D elta-Sigmaanalog-to- Digital converter, and Digital over- Temperature de-tector with I2C interface. The host can query the LM75 atany time to read Temperature . The open-drain Overtempera-ture Shutdown ( ) output becomes active when the tem-perature exceeds a programmable limit. This pin can operatein either Comparator or Interrupt host can program both the Temperature alarm threshold(TOS) and the Temperature at which the alarm condition goesaway (THYST). In addition, the host can read back the con-tents of the LM75 s TOSand THYST registers. Three pins (A0,A1, A2) are available for address selection. The sensorpowers up in Comparator mode with default thresholds of80 C TOSand 75 C LM75 s to supply voltage range, low supplycurrent and I2C interface make it ideal for a wide range ofapplications. These include Thermal management and pro-tection applications in personal computers, electronic testequipment, and office and Mini SOP-8 (MSOP) packages save spacenI2C Bus interfacenSeparate open-drain output pin operates as interrupt orcomparator/thermostat outputnRegister readback capabilitynPower up defaults permit stand-alone operation asthermostatnShutdown mode to minimize power consumptionnUp to 8 LM75s can be connected to a single busKey SpecificationsjSupply to Currentoperating2
LM75 Digital Temperature Sensor and Thermal watchdog with Two-Wire Interface General Description The LM75 is a temperature sensor, Delta-Sigma analog-to-digital converter, and digital over-temperature de-
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