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參數(shù)資料
| 型號(hào)： | MIC280 |
| 廠商： | Micrel Semiconductor,Inc. |
| 英文描述： | Precision IttyBitty Thermal Supervisor |
| 中文描述： | 精密IttyBitty熱監(jiān) |
| 文件頁(yè)數(shù)： | 1/23頁(yè) |
| 文件大小： | 226K |
| 代理商： | MIC280 |
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November 2004
1
MIC280
MIC280
Micrel
MIC280
Precision IttyBitty Thermal Supervisor
REV. 11/04
General Description
The MIC280 is a digital thermal supervisor capable of measur-
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, 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 thresholds are provided for each zone.
The advanced integrating A/D converter and analog front-end
reduce errors due to noise for maximum accuracy and mini-
mum 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.
Typical Application
DATA
CLK
/INT
5
4
6
2
3
1
TO
SERIAL BUS
HOST
2N3906/
1800pF
MIC280
3V to 3.6V
3
×
10k
VDD
T1
GND
0.1
μ
F
ceramic
MIC280 Typical Application
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 SOT23-6 package
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
Micrel, Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
IttyBiity is a trademark of Micrel, Inc.
*All trademarks are the property of their respective owners.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MIC280-0BM6 | Precision IttyBitty Thermal Supervisor |
| MIC280-1BM6 | Precision IttyBitty Thermal Supervisor |
| MIC280-2BM6 | Precision IttyBitty Thermal Supervisor |
| MIC280-2YM6 | Precision IttyBitty Thermal Supervisor |
| MIC280-3BM6 | Replaced by PTH05000W : |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC2800-A4SYML | 制造商:Rochester Electronics LLC 功能描述: 制造商:RF Micro Devices Inc 功能描述: |
| MIC2800-A4SYML TR | 功能描述:線性穩(wěn)壓器 - 標(biāo)準(zhǔn) DC-DC + 2 Linear Regulators with LowQ Mode (Lead Free) RoHS:否 制造商:STMicroelectronics 輸出類(lèi)型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負(fù)載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
| MIC280-0BM6 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MIC280-0BM6 TR | 功能描述:IC SUPERVISOR THERMAL SOT23-6 RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - 熱管理 系列:IttyBitty® 標(biāo)準(zhǔn)包裝:2,500 系列:SilentSense™ 功能:溫度監(jiān)控系統(tǒng)（傳感器） 傳感器類(lèi)型:內(nèi)部和外部 感應(yīng)溫度:-55°C ~ 125°C，外部傳感器 精確度:±2°C 本地（最大），±3°C 遠(yuǎn)程（最大） 拓?fù)?ADC（三角積分型），比較器，寄存器庫(kù) 輸出類(lèi)型:I²C?/SMBus? 輸出警報(bào):是 輸出風(fēng)扇:是 電源電壓:2.7 V ~ 5.5 V 工作溫度:-55°C ~ 125°C 安裝類(lèi)型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-MSOP 包裝:帶卷 (TR) 其它名稱(chēng):MIC284-2BMMTRMIC284-2BMMTR-ND |
| MIC280-0BM6TR | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
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