參數資料
型號: LM95241
廠商: National Semiconductor Corporation
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: 雙遠程二極管溫度傳感器,帶有SMBus接口和TruTherm⑩科技(65nm/90nm)
文件頁數: 6/19頁
文件大?。?/td> 708K
代理商: LM95241
Logic Electrical Characteristics
(Continued)
SMBus Communication
20199709
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
guaranteed to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics.
The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the
listed test conditions. Operation of the device beyond the maximum Operating Ratings is not recommended.
Note 2:
When the input voltage (V
I
) at any pin exceeds the power supplies (V
I
<
GND or V
I
>
V
DD
), the current at that pin should be limited to 5 mA.
Parasitic components and or ESD protection circuitry are shown in the figures below for the LM95241’s pins. Care should be taken not to forward bias the parasitic
diode, D1, present on pins: D1+, D2+, D1, D2. Doing so by more than 50 mV may corrupt the temperature measurements.
Pin
#
1
Label Circuit
All Input ESD Protection Structure Circuits
D1+
A
Circuit A
Circuit C
Circuit B
2
D1
A
3
D2+
A
4
D2
A
5
GND
B
6
V
DD
B
7
SMBDAT
C
8
SMBCLK
C
Note 3:
Thermal resistance junction-to-ambient when attached to a printed circuit board with 1oz. foil and no air flow:
– MSOP-8 = 210C/W
Note 4:
Human body model (HBM), 100pF discharged through a 1.5k
resistor. Machine model (MM), 200pF discharged directly into each pin. Charged Device
Model (CDM) simulates a pin slowly acquiring charge (such as from a device sliding down the feeder in an automated assembler) then rapidly being discharged.
Note 5:
Reflow temperature profiles are different for packages containing lead (Pb) than for those that do not.
Note 6:
Typical figures are at T
A
= 25C and represent most likely parametric norms at the time of product characterization. The typical specifications are not
guaranteed.
Note 7:
Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).
Note 8:
Local temperature accuracy does not include the effects of self-heating. The rise in temperature due to self-heating is the product of the internal power
dissipation of the LM95241 and the thermal resistance. See (Note 3) for the thermal resistance to be used in the self-heating calculation.
Note 9:
The accuracy of the LM95241CIMM is guaranteed when using a typical thermal diode of an Intel processor on a 65 nm process or an MMBT3904
diode-connected transistor, as selected in the Remote Diode Model Select register. See typical performance curve for performance with Intel processor on a 90nm
process.
Note 10:
Quiescent current will not increase substantially when the SMBus is active.
Note 11:
This specification is provided only to indicate how often temperature data is updated. The LM95241 can be read at any time without regard to conversion
state (and will yield last conversion result).
Note 12:
The output rise time is measured from (V
IN(0)
max + 0.15V) to (V
IN(1)
min 0.15V).
Note 13:
The output fall time is measured from (V
IN(1)
min - 0.15V) to (V
IN(1)
min + 0.15V).
Note 14:
Holding the SMBDAT and/or SMBCLK lines Low for a time interval greater than t
TIMEOUT
will reset the LM95241’s SMBus state machine, therefore setting
SMBDAT and SMBCLK pins to a high impedance state.
L
www.national.com
6
相關PDF資料
PDF描述
LM95241CIMM Dual Remote Diode Temperature Sensor with SMBus Interface and TruTherm⑩ Technology (65nm/90nm)
LM95241CIMM-1 Dual Remote Diode Temperature Sensor with SMBus Interface and TruTherm⑩ Technology (65nm/90nm)
LM95241CIMM-2 Dual Remote Diode Temperature Sensor with SMBus Interface and TruTherm⑩ Technology (65nm/90nm)
LM95241CIMMX Dual Remote Diode Temperature Sensor with SMBus Interface and TruTherm⑩ Technology (65nm/90nm)
LM95241CIMMX-1 Dual Remote Diode Temperature Sensor with SMBus Interface and TruTherm⑩ Technology (65nm/90nm)
相關代理商/技術參數
參數描述
LM95241CIMM 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: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor
LM95241CIMM/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: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor
LM95241CIMM-1 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: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor
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: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能: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: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數字輸出 - 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor