參數(shù)資料
型號: MIC281-4BM6 TR
廠商: Micrel Inc
文件頁數(shù): 1/14頁
文件大?。?/td> 657K
描述: IC SUPERVISOR THERMAL SOT23-6
標(biāo)準(zhǔn)包裝: 3,000
系列: IttyBitty®
功能: 溫度監(jiān)控系統(tǒng)(傳感器)
傳感器類型: 外部
感應(yīng)溫度: 外部傳感器
精確度: ±3°C(最小值)
拓?fù)洌?/td> ADC,寄存器庫
輸出類型: I²C?/SMBus?
輸出警報(bào):
輸出風(fēng)扇:
電源電壓: 3 V ~ 3.6 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: SOT-23-6
供應(yīng)商設(shè)備封裝: SOT-23-6
包裝: 帶卷 (TR)
其它名稱: MIC281-4BM6TR
MIC281-4BM6TR-ND
 
MIC281
Low-Cost IttyBitty" Thermal Sensor
 
 
 
Micrel Inc. " 2180 Fortune Drive " San Jose, CA 95131 " USA " tel +1 (408) 944-0800 " fax + 1 (408) 474-1000 " http://www.micrel.com
pril 23, 2014
Revision 2.0
 
General Description
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
?/DIV>
  II/III/IV CPUs, AMD
Athlon
?/DIV>
 CPUs, and Xilinx Virtex
?/DIV>
 FPGAs.
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 V
DD
. They will not clamp
the bus lines low even if the device is powered down.
Superior performance, low power, and small size make the
MIC281 an excellent choice for cost-sensitive thermal
management applications.
Datasheets and support documentation are available on
Micrels website at: www.micrel.com.
Features
?   Remote temperature measurement using embedded
thermal diodes or commodity transistors
?   Accurate remote sensing: ?癈 max., 0癈 to 100癈
?   Excellent noise rejection
?   I
2
C 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 IttyBitty SOT23-6 package 
Applications
? Desktop, server, and notebook computers
? Set-top boxes
? Game consoles
? Appliances
 
Typical Application
 
 
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