Microchip Technology Inc

Local Temperature Sensor IC

Microchip’s line of digital local temperature sensors are single channel digital output temperature sensors for monitoring various heat sources.  These I2C and SPI sensors have typical temperature accuracy performance capability to deliver up to ±0.25°C or ± 0.5°C. They are good for placement next to a heat source or air flow temperature location on circuit board.  Selectable temperature resolutions and conversion rates, multiple critical temperature limits, fault-tolerance queuing, selectable hysteresis thresholds, and non-volatile configuration and temperature registers to retain settings even when devices are powered off. Industry-first solutions that integrate Microchip’s industry leading non-volatile memory technology to allow customers to not only store critical system temperature data but also application-specific configuration, user preference data and temperature event data logging.

Analog Sensors

  • Low operating current: 6µA typical
  • Extended temperature range: - 40ºC to +125ºC
  • Available in 10 mV/ºC and 19.5 mV/ºC linear temperature slopes
  • Small packaging, including 3-pin SOT-23

Serial (Digital) Output
Temperature Sensors

  • ±0.5ºC maximum accuracy
  • 1.7 to 5.5V operating voltage
  • I2C and SPI compatible interface
  • Extreme low power saving modes available
  • Small packaging options including Wafer-level CSP

Temperature Switches

  • ±0.5ºC typical threshold accuracy
  • Operating supply voltages from 2.7V to 18V
  • Dual trip points available on select devices
  • Small packaging options available including SOT-23

Featured Devices

  • 0.5°C Accuracy
  • Integrated non-volatile registers
  • 8 KB Serial EEPROM
  • 2x3 DFN-8 Package
  • 0.25°C Accuracy
  • 3 user selectable temperature limits
  • User Selectable Measurement Resolution
  • 2x3 DFN-8 Package
  • 1°C Accuracy
  • 3.4MHz Clock Frequency Max
  • Power Saving One-Shot Mode
  • 4-ball or 5-ball Wafer-level CSP Packages
Tabs / Thermal Management Products
Application Notes
Development Tools
Reference Designs

Application Notes

AN1001: IC Temperature Sensor Accuracy Compensation with a PIC Microcontroller

AN871: Solving Thermal Measurement Problems Using the TC72 and TC77 Digital Temperature Sensors

AN773: TC620/621 Solid State Temperature Sensors (TC620, TC621, TC626)

TB050: Monitoring Multiple Temperature Nodes Using TC74 Thermal Sensors and a PIC5C505

TB052: Multi-Zone Temperature Monitoring Technicla Brief

Development Tools

Order # Description Devices Supported
ADM00665 MCP9600 Evaluation Board  MCP9600
MCP9700DM-PCTL MCP9700 Temperature-to-Voltage Converter PICtail™ Demonstration Board  MCP9800
MCP9700DM-TH1 MCP9700 Thermistor Demonstration Board  MCP9700, MCP6S92
MCP9800DM-PCTL MCP9800 Temperature Sensor PICtail Demonstration Board  MCP9800
MCP9800DM-TS1 MCP9800 Temperature Sensor Demonstration Board  MCP9800
MCP9800DM-DL MCP9800 Temperature Data Logger Demonstration Board MCP9800
MCP9800DM-DL2 MCP9800 Temperature Data Logger Demonstration Board 2  MCP9800, MCP101, PIC10F202, 24LC16B
TC1047ADM-PICTL TC1047A Temperature-to-Voltage Converter PICtail™ Demonstration Board  TC1047A
TC77DM-PICTL  TC77 Thermal Sensor PICtail Demonstration Board  TC77
TMPSNS-RTD1 PT100 RTD Evaluation Board MCP6S26, MCP3301, MCP6024, MCP41010, PIC18F2550, TC1071, MCP6002
TMPSNSRD-RTD2 RTD Reference Design Board  MCP3551, MCP9804
TMPSNSRD-TCPL1 Thermocouple Reference Design  MCP9804, MCP3421
MCP6V01RD-TCPL MCP6V01 Thermocouple Auto-Zeroed Reference Design  MCP6V01

Thermal Managment

Title Part Number Devices Supported
MCP9600 Thermocouple EMF voltage to degree Celsius with +/-1C accuracy ADM00665 MCP9600
Thermocouple Auto-Zeroed Reference Design MCP6V01RD-TCPL MCP6V01, MCP9800
Thermocouple Reference Design TMPSNSRD-TCPL1 MCP3421, MCP9804
MCP9700 Thermistor MCP9700DM-TH1 MCP6S22, MCP9700
MCP9800 Temperature Data Logger MCP9800DM-DL MCP9800, PIC16F6784, 24LC1025
RTD Temp Sensor TMPSNS-RTD1 MCP3301, MCP41010, MCP6S26, PIC18F2550
RTD Reference Design Board TMPSNSRD-RTD2 MCP3551, MCP9804, PIC18F2550

Analog - Local Temperature Sensors