Microchip Technology MIC281
The MIC281 is a digital thermal sensor capable of measuring the temperature of a remote PN junction. It is optimized for applications favoring low cost and small size. The remote junction may be an inexpensive commodity transistor, e.g., 2N3906, or an embedded thermal diode such as found in Intel Pentium® II/III/IV CPUs, AMD Athlon® CPUs, and Xilinx Virtex® FPGAs.- Min Voltage : 3V
- Max Voltage : 3.6V
- Max Operating Temp : 125°C
- Min Operating Temp : -55°C
Source:
Octopart
| Part No. | MIC281 |
|---|---|
| Datasheet | MIC281 Download |
| Manufacturer |  Microchip Technology |
| Description | Low-Cost Thermal Sensor |
| Buy | Stock & Price |
FEATURES
● Remote Temperature Measurement Using Embedded Thermal Diodes or Commodity Transistors● Accurate Remote Sensing: ±3°C max., 0°C to 100°C
● Excellent Noise Rejection
● I2C and SMBus 2.0-Compatible Serial Interface
● SMBus Timeout to Prevent Bus Lockup
● Voltage Tolerant I/Os
● Low Power Shutdown Mode
● Failsafe Response to Diode Faults
● 3.0V to 3.6V Power Supply Range
● Available in SOT23-6 Package
APPLICATIONS
● Desktop, Server, and Notebook Computers● Set-Top Boxes
● Game Consoles
● Appliances
GENERAL DESCRIPTION
The MIC281 is 100% software and hardware backward compatible with the MIC280 and features the same industry-leading noise performance and small size. The advanced integrating A/D converter and analog front-end reduce errors due to noise for maximum accuracy and minimum guardbanding. A 2-wire SMBus 2.0-compatible serial interface is provided for host communication. The clock and data pins are 5V-tolerant regardless of the value of VDD. They will not clamp the bus lines low even if the device is powered down.
