TMP442ADCNR Texas Instruments Integrated Circuit (Other) In Stock
TMP442ADCNR is a dual remote and local temperature sensor IC by Texas Instruments with 12-bit resolution and up to 1°C accuracy. Key specs: SMBus/I2C interface, 2.7V-5.5V supply, compact 8-pin 2.9x1.6mm SOT-23 package. From $1.20, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TMP442ADCNR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 12-bit ADC resolution enables precise temperature measurements with 0.0625°C step size for accurate thermal monitoring
- Dual remote sensing channels allow simultaneous monitoring of two external temperature zones plus local die temperature
- Maximum accuracy of ±1°C reduces need for system-level calibration in precision thermal management applications
- SMBus/I2C compatible interface simplifies integration with microcontrollers in space-constrained embedded designs
Applications
The TMP442ADCNR is used in servers, notebooks, and desktop computers for CPU and GPU thermal monitoring, enabling dynamic fan speed control and thermal throttling to protect system components. Its dual remote sensing capability makes it ideal for HVAC systems and industrial equipment requiring multi-zone temperature surveillance. The compact SOT-23 package and low power consumption also suit battery-operated IoT devices and portable instruments with strict thermal constraints.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Accuracy-Max (Cel) | 1Cel |
| Body Breadth | 1.6mm |
| Body Height | 1.175mm |
| Body Length or Diameter | 2.9mm |
| Housing | PLASTIC |
| JESD-609 Code | e4 |
| Mounting Feature | SURFACE MOUNT |
| Number of Bits | 12 |
| Operating Current-Max | 0.045mA |
| Output Interface Type | 2-WIRE INTERFACE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.1 |
| Package Shape/Style | RECTANGULAR |
| Sensors/Transducers Type | TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 2.7V |
| Surface Mount | YES |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Termination Type | SOLDER |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TMP442ADCNR:
Switch/Digital Sensor, 12 Bit(s), 1Cel, Rectangular, 8 Pin, Surface Mount
Frequently Asked Questions
What is the temperature measurement accuracy of the TMP442ADCNR?
The TMP442ADCNR achieves a maximum accuracy of ±1°C over the temperature range, with 12-bit resolution providing a step size of 0.0625°C, making it suitable for precision thermal monitoring in servers, PCs, and industrial equipment.
How many temperature channels does the TMP442ADCNR support?
The TMP442ADCNR supports three temperature channels: one local on-chip sensor and two remote diode-connected temperature channels, allowing simultaneous multi-zone thermal monitoring in a single compact 8-pin SOT-23 package measuring 2.9mm x 1.6mm.
What communication interface does the TMP442ADCNR use?
The TMP442ADCNR uses an SMBus/I2C compatible serial interface for communication with host microcontrollers, supporting standard SMBus operations for reading temperature data and configuring alert thresholds with minimal pin count requirements.
What are the typical applications for the TMP442ADCNR?
Typical applications include CPU and GPU thermal management in servers and laptops, battery management systems, industrial process temperature monitoring, HVAC control systems, and portable test instruments requiring accurate multi-point temperature sensing with a compact SMBus interface.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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