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                                                                                                  1. Home
                                                                                                  2. Sensors & Transducers
                                                                                                  3. Sensors
                                                                                                  4. Temperature Sensors & Transducers
                                                                                                  5. IC Temperature Sensors
                                                                                                  Print Page

                                                                                                  EMC1843T-1E/RW

                                                                                                  Temperature Sensor IC, Digital, ± 1°C, -40 °C, 125 °C, WDFN-EP, 8 Pins

                                                                                                  Date/Lot Code

                                                                                                  MICROCHIP EMC1843T-1E/RW
                                                                                                  Image is for illustrative purposes only. Please refer to product description.
                                                                                                  ManufacturerMICROCHIP
                                                                                                  Manufacturer Part NoEMC1843T-1E/RW
                                                                                                  Newark Part No.85AC3446
                                                                                                  Technical Datasheet

                                                                                                  Data Sheet

                                                                                                  See all Technical Docs
                                                                                                  Packaging Options
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                                                                                                  Product Information

                                                                                                  ManufacturerMICROCHIP
                                                                                                  Manufacturer Part NoEMC1843T-1E/RW
                                                                                                  Newark Part No.85AC3446
                                                                                                  Technical Datasheet

                                                                                                  Data Sheet

                                                                                                  Sensor Output TypeDigital
                                                                                                  IC Output TypeDigital
                                                                                                  Accuracy± 1°C
                                                                                                  Sensing Accuracy Range± 0.25°C
                                                                                                  Sensing Temperature Min-40°C
                                                                                                  Measured Temperature Min-40°C
                                                                                                  Sensing Temperature Max125°C
                                                                                                  Measured Temperature Max125°C
                                                                                                  Sensor Case StyleWDFN
                                                                                                  Sensor Case / PackageWDFN-EP
                                                                                                  No. of Pins8Pins
                                                                                                  Supply Voltage Min1.62V
                                                                                                  Supply Voltage Max3.6V
                                                                                                  No. of Channels3Channels
                                                                                                  Resolution11 bits
                                                                                                  Output InterfaceI2C, SMBus
                                                                                                  Operating Temperature Min-40°C
                                                                                                  Operating Temperature Max125°C
                                                                                                  Product Range-
                                                                                                  Qualification-
                                                                                                  MSL-
                                                                                                  Automotive Qualification Standard-
                                                                                                  SVHCNo SVHC (25-Jun-2025)

                                                                                                  Product Overview

                                                                                                  EMC1843 device is a 1.8V, 3-channel, high-accuracy, 2-wire (I2C compatible) temperature sensor. Advanced features such as rate of change, shutdown, resistance error correction (REC), beta Compensation (to support CPU diodes requiring the BJT/transistor model) and ideality configuration combine to provide a robust solution for complex environmental monitoring applications. This device family introduces rate of change (ROC) temperature measurement with associated alerts. This provides a pre-emptive system alert and another protective measurement layer to catch and manage variable system temperatures. Applications includes IoT devices for low system voltage, monitoring temperature for food storage, industrial applications and computing and data centres.

                                                                                                  • Multi-channel low-voltage temp sensors with shutdown
                                                                                                  • Measures temperature rate of change calculation with pre-emptive alert(s) limits
                                                                                                  • Up to four external temperature monitors
                                                                                                  • Internal temperature sensor, ±1°C maximum accuracy, -40°C to +125°C
                                                                                                  • Temperature sensor resolution (internal/external): 0.125°C
                                                                                                  • Resistor programmable system shutdown temperature
                                                                                                  • Configurable alert pins operating voltage: 1.62V to 3.6V
                                                                                                  • Auto-beta compensation, configurable ideality factor, hottest diode compare
                                                                                                  • Rate of temperature change with pre-emptive alerts help better regulate devices
                                                                                                  • Protective and shutdown features provide robust solution for monitoring systems

                                                                                                  Technical Specifications

                                                                                                  Sensor Output Type

                                                                                                  Digital

                                                                                                  Accuracy

                                                                                                  ± 1°C

                                                                                                  Sensing Temperature Min

                                                                                                  -40°C

                                                                                                  Sensing Temperature Max

                                                                                                  125°C

                                                                                                  Sensor Case Style

                                                                                                  WDFN

                                                                                                  No. of Pins

                                                                                                  8Pins

                                                                                                  Supply Voltage Max

                                                                                                  3.6V

                                                                                                  Resolution

                                                                                                  11 bits

                                                                                                  Operating Temperature Min

                                                                                                  -40°C

                                                                                                  Product Range

                                                                                                  -

                                                                                                  MSL

                                                                                                  -

                                                                                                  SVHC

                                                                                                  No SVHC (25-Jun-2025)

                                                                                                  IC Output Type

                                                                                                  Digital

                                                                                                  Sensing Accuracy Range

                                                                                                  ± 0.25°C

                                                                                                  Measured Temperature Min

                                                                                                  -40°C

                                                                                                  Measured Temperature Max

                                                                                                  125°C

                                                                                                  Sensor Case / Package

                                                                                                  WDFN-EP

                                                                                                  Supply Voltage Min

                                                                                                  1.62V

                                                                                                  No. of Channels

                                                                                                  3Channels

                                                                                                  Output Interface

                                                                                                  I2C, SMBus

                                                                                                  Operating Temperature Max

                                                                                                  125°C

                                                                                                  Qualification

                                                                                                  -

                                                                                                  Automotive Qualification Standard

                                                                                                  -

                                                                                                  Technical Docs (2)

                                                                                                  Technical Data Sheet EN

                                                                                                  Product Change Notice EN

                                                                                                  Legislation and Environmental

                                                                                                  US ECCN:EAR99
                                                                                                  EU ECCN:Unknown
                                                                                                  RoHS Compliant:Yes

                                                                                                  RoHS

                                                                                                  RoHS Phthalates Compliant:Yes

                                                                                                  RoHS

                                                                                                  SVHC:No SVHC (25-Jun-2025)
                                                                                                  Download Product Compliance Certificate

                                                                                                  Product Compliance Certificate

                                                                                                  Product traceability

                                                                                                  Date/Lot Code

                                                                                                  Customer Service
                                                                                                  I Need Help
                                                                                                  Sales 01.800.463.9275
                                                                                                  Technical 01.800.463.9275
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