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MIC280
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DataSheet
General Description

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MFG:MICREL Package Cooled:SOT23-6 D/C:04+

MIC Series Datasheet download

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Part Number: MIC280

MFG: MICREL

Package Cooled: SOT23-6

D/C: 04+

Description: The MIC280 is a digital thermal supervisor capable of measuring its own internal temperature and that of a remote PN ju...

MIC280 General Description

The MIC280 is a digital thermal supervisor capable of measuring its own internal temperature and that of a remote PN junction. 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* FPGA's. A 2-wire SMBus* 2.0 compatible serial interface is provided for host communication. Remote temperature is measured with ±1°C accuracy and 9-bit to 12-bit resolution (programmable). Independent high, low, and over-temperature thr esholds are provided for each zone.
The advanced integrating A/D converter and analog front-end reduce errors due to noise for maximum accuracy and minimum guardbanding. The interrupt output signals temperature events to the host, including data-ready and diode faults. Critical device settings can be locked to prevent changes and insure failsafe operation. The clock, data, and interrupt pins are 5V-tolerant regardless of the value of V _DD. They will not clamp the bus lines low even if the device is powered down. Superior accuracy, failsafe operation, and small size make the MIC280 an excellent choice for the most demanding thermal management applications.

MIC280 Maximum Ratings

Power Supply Voltage, V_DD ..........................................3.8V
Voltage on T1 ........................................0.3V to V_DD +0.3V
Voltage on CLK, DATA, /INT ..............................0.3V to 6V
Current Into Any Pin .................................................±10mA
Power Dissipation, T _A= 125°C ................................109mW
Storage Temperature ..........................65°C to +150°C
ESD Ratings, Note 3
Human Body Model ................................................1.5kV

Machine Model ........................................................200V
Soldering (SOT23-6 Package)
Vapor Phase (60s) .................................220°C +5/_-0°C
Infrared (15s) ........................................235°C +5/_-0°C

MIC280 Features

* Measures local and remote temperature
* Highly accurate remote sensing
      ±1°C max., 60°C to 100°C
* Superior noise immunity for reduced temperature guard
      bands
* 9-bit to 12-bit temperature resolution for remote zone
* Fault queues to further reduce nuisance tripping
* Programmable high, low, and over-temperature thresh-
      olds for each zone
* SMBus 2 compatible serial interface including device
      timeout to prevent bus lockup
* Voltage tolerant I/O's
* Open-drain interrupt output pin - supports SMBus Alert
      Response Address protocol
* Low power shutdown mode
* Locking of critical functions to insure failsafe operation
* Failsafe response to diode faults
* Enables ACPI compliant thermal management
* 3.0V to 3.6V power supply range
* IttyBitty(TM) SOT23-6 package

MIC280 Typical Application

* Desktop, server and notebook computers
* Printers and copiers
* Test and measurement equipment
* Thermal supervision of Xilinx Virtex FPGA's
* Wireless/RF systems
* Intelligent power supplies
* Datacom/telecom cards

MIC280 Connection Diagram

MIC280 datasheet

MIC2800-18YML
PDF/DataSheet Download

Datasheet: MIC2800-18YML
File Size: 654226 KB
Manufacturer: MICREL [Micrel Semiconductor]
Click here to Download

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The MIC2777 is a dual power supply supervisor that provides under-voltage monitoring, manual reset capability, and poweron reset generation in a compact 5-pin SOT package. MIC2777 features include two under-voltage detectors, one fixed and one adjustable, an...
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