TCN75A

The TCN75A is a digital temperature sensor capable of reading temperatures from -40°C to +125°C. Temperature data is measured from an integrated temperature sensor and converted to digital word with a user selectable 9 to 12-bit Sigma Delta Analog to Digital Converter. The TCN75A notifies the host controller when the ambient temperature exceeds a user programmed set point. The ALERT output is programmable as either a simple comparator for thermostat operation or as a temperature event interrupt. Communication with the sensor is accomplished via a two-wire bus that is compatible with industry standard protocols. This permits reading the current temperature, programming the set point and hysteresis and configuring the device. Small physical size, low installed cost and ease of use make the TCN75A an ideal choice for implementing sophisticated temperature system management schemes in a variety of applications.

Features
  • 2-wire I²C™/SMBus Compatible Interface
  • User Selectable 9- to 12-Bit Resolution
  • ±3°C Accuracy from +25°C to +125°C
  • Low Operating Current: 500 µA (max)
  • Shutdown Mode: 2 µA (max)
  • Power Saving One-Shot Temperature Conversion Measurement
  • Multi-drop capability
  • Space-saving MSOP-8 and SOIC-8 Packages
  • AEC-Q100 Qualified Grade 1
Parameter
Parameter Name Value Value
# Temps Monitored 1 1
Typical Accuracy (°) 0.5 0.5
Max. Accuracy @ 25° (°) 3 3
Max Input/ Supply Current (µA) 500 500
Temp. Range (°C) -40 to +125 -40 to +125
Operating Voltage Range (V) +2.7 to +5.5 +2.7 to +5.5
Typ Supply Current (µA) 500 500
Alert/THERM 1 1
Resistance Error Correction N/A N/A
Beta Compensation N/A N/A
Ideality Factor N/A N/A
Device Description Digital Temperature Sensor Digital Temperature Sensor
Documents
TCN75A Data SheetData Sheets10/04/2010501KB
TCN75A Rev. A Silicon/Data Sheet ErrataErrata07/26/200771KB
AN679 - Temperature Sensing TechnologiesAppNote08/10/1999177KB
Analog & Interface Guide (Volume 2)Brochures10/11/20051067KB
Quick Guide to Microchip Development ToolsBrochures10/15/201411223KB
Temperature Sensor Design GuideBrochures12/08/2009687KB
Utility Metering BrochureBrochures10/06/20143370KB
Analog & Interface Product Selector GuideProduct Line Card03/21/20164116KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
TCN75AVOA8SOIC-40C to +125CTUBE0.700.580.530.510.51
TCN75AVOA7138SOIC-40C to +125CT/R0.700.580.530.510.51
TCN75AVUA8MSOP-40C to +125CTUBE0.700.580.530.510.51
TCN75AVUA7138MSOP-40C to +125CT/R0.700.580.530.510.51
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RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
TCN75AVOA0.0780000.1600008SOIC.150In(3.90mm)Matte Tine3
TCN75AVOA7130.0780000.2303038SOIC.150In(3.90mm)Matte Tine3
TCN75AVUA0.0256000.0700008MSOP3x3mmMatte Tine3
TCN75AVUA7130.0256000.2156008MSOP3x3mmMatte Tine3
TCN75AVUA713-VAO0.0256000.2156008MSOP3x3mmMatte Tine3
TCN75A Data Sheet TCN75A
TCN75A Rev. A Silicon/Data Sheet Errata TCN75A
AN679 MCP3553
Analog & Interface Guide (Volume 2) MCP23S08
Quick Guide to Microchip Development Tools ENC28J60
Temperature Sensor Design Guide MCP9701A
Utility Metering Brochure SST39WF800B
Analog & Interface Product Selector Guide ENC624J600