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參數(shù)資料
| 型號： | LM95241CIMM-1 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Dual Remote Diode Temperature Sensor with SMBus Interface and TruTherm⑩ Technology (65nm/90nm) |
| 中文描述： | DIGITAL TEMP SENSOR-DUAL TRIP POINT |
| 封裝： | MO-187, MSOP-8 |
| 文件頁數(shù)： | 7/19頁 |
| 文件大?。?/td> | 708K |
| 代理商： | LM95241CIMM-1 |
Typical Performance Characteristics
Intel Processor on 65nm Process or 90nm Process
Thermal Diode Performance Comparison
Thermal Diode Capacitor or PCB Leakage Current Effect
Remote Diode Temperature Reading
20199704
20199705
Remote Temperature Reading Sensitivity to Thermal
Diode Filter Capacitance
Conversion Rate Effect on Average Power Supply
Current
20199707
20199706
1.0 Functional Description
The LM95241 is a digital sensor that can sense the tempera-
ture of 3 thermal zones using a sigma-delta analog-to-digital
converter. It can measure its local die temperature and the
temperature of two external transistor junctions using a
V
temperature sensing method. The LM95241 can support two
external transistor types, a Intel processor on 65nm or 90mn
process thermal diode or a 2N3904 diode connected tran-
sistor. The transistor type is register programmable and does
not require software intervention after initialization. The
LM95241 has an advanced input stage using National Semi-
conductor’s TruTherm technology that reduces the spread in
non-ideality found in Intel processors on 65nm or 90nm
process. Internal analog filtering has been included in the
thermal diode input stage thus minimizing the need for ex-
ternal thermal diode filter capacitors. In addition a digital filter
has been added. These noise immunity improvements in the
analog input stage along with the digital filtering will allow
longer trace tracks or cabling to the thermal diode than
previous thermal diode sensor devices.
The 2-wire serial interface, of the LM95241, is compatible
with SMBus 2.0 and I2C
. Please see the SMBus 2.0 speci-
fication for a detailed description of the differences between
the I2C bus and SMBus.
The temperature conversion rate is programmable to allow
the user to optimize the current consumption of the LM95241
to the system requirements. The LM95241 can be placed in
shutdown to minimize power consumption when tempera-
ture data is not required. While in shutdown, a 1-shot con-
version mode allows system control of the conversion rate
for ultimate flexibility.
The remote diode temperature resolution is variable and
depends on whether the digital filter is activated. When the
digital filter is active the resolution is thirteen bits and is
programmable to 13-bits unsigned or 12-bits plus sign, with
a least-significant-bit (LSb) weight for both resolutions of
0.03125C. When the digital filter is inactive the resolution is
eleven bits and is programmable to 11-bits unsigned or
10-bits plus sign, with a least-significant-bit (LSb) weight for
both resolutions of 0.125C. The unsigned resolution allows
L
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM95241CIMM-1/NOPB | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| LM95241CIMM-2 | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| LM95241CIMM-2/NOPB | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| LM95241CIMMX | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| LM95241CIMMX/NOPB | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
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