Datasheet > MIC280-3YM6

MIC280-3YM6

更新时间： 2024-09-29 22:14:59

品牌	Logo	应用领域
麦瑞 - MICREL		光电二极管
页数	文件大小	规格书
23页	228K
描述
Precision IttyBitty Thermal Supervisor

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中文翻译

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数据手册

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MIC280-3YM6 数据手册

MIC280

Micrel

MIC280

Precision IttyBitty™ Thermal Supervisor

REV. 11/04

General Description

Features

TheMIC280isadigitalthermalsupervisorcapableofmeasur-

ing its own internal temperature and that of a remote PN junc-

tion. 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,AMDAthlon* 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-bitresolution(programmable).Independenthigh,low,and

over-temperature thresholds are provided for each zone.

• 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™ SOT23-6 package

TheadvancedintegratingA/Dconverterandanalogfront-end

reduce errors due to noise for maximum accuracy and mini-

mumguardbanding.Theinterruptoutputsignalstemperature

events to the host, including data-ready and diode faults.

Criticaldevicesettingscanbelockedtopreventchangesand

insure failsafe operation. The clock, data, and interrupt pins

are 5V-tolerant regardless of the value of V . 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.

Applications

• 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

Typical Application

3V to 3.6V

0.1µF

ceramic

3 ×

10k

MIC280

DATA

CLK

VDD

SERIAL BUS

HOST

/INT

GND

2N3906/�

CPU DIODE

1800pF

MIC280 Typical Application

IttyBiity is a trademark of Micrel, Inc.

*All trademarks are the property of their respective owners.

Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

November 2004

MIC280

12 3 4 5 6 7...23

中文翻译

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与MIC280-3YM6相关器件

型号	品牌	获取价格	描述	数据表
MIC2804	MICREL	获取价格	High-Voltage High-Current Darlington Array
MIC280-4BM6	MICREL	获取价格	Precision IttyBitty Thermal Supervisor
MIC2804BN	MICREL	获取价格	High-Voltage High-Current Darlington Array
MIC2804BN	MICROCHIP	获取价格	Small Signal Bipolar Transistor, 0.5A I(C), 50V V(BR)CEO, 8-Element, NPN, Silicon, PLASTIC
MIC2804BWM	MICREL	获取价格	High-Voltage High-Current Darlington Array
MIC2804BWMT&R	MICROCHIP	获取价格	Small Signal Bipolar Transistor, 0.5A I(C), 50V V(BR)CEO, 8-Element, NPN, Silicon, PLASTIC
MIC280-4YM6	MICREL	获取价格	Precision IttyBitty Thermal Supervisor
MIC280-5BM6	MICREL	获取价格	Precision IttyBitty Thermal Supervisor
MIC280-5YM6	MICREL	获取价格	Precision IttyBitty Thermal Supervisor
MIC280-5YM6TR	MICREL	获取价格	SPECIALTY ANALOG CIRCUIT, PDSO6, LEAD FREE, SOT-23, 6 PIN

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