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參數(shù)資料
| 型號： | LM95235 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Precision Remote Diode Temperature Sensor with SMBus Interface and TruTherm Technology |
| 中文描述： | 高精度遠(yuǎn)程二極管溫度傳感器，帶有SMBus接口和TruTherm技術(shù) |
| 文件頁數(shù)： | 24/25頁 |
| 文件大小： | 784K |
| 代理商： | LM95235 |
3.0 Applications Hints
(Continued)
9.
Leakage current between D+ and GND and between D+
and D should be kept to a minimum. Thirteen nano-
amperes of leakage can cause as much as 0.2C of
error in the diode temperature reading. Keeping the
printed circuit board as clean as possible will minimize
leakage current.
Noise coupling into the digital lines greater than 400 mVp-p
(typical hysteresis) and undershoot less than 500 mV below
GND, may prevent successful SMBus communication with
the LM95235. SMBus no acknowledge is the most common
symptom, causing unnecessary traffic on the bus. Although
the SMBus maximum frequency of communication is rather
low (100 kHz max), care still needs to be taken to ensure
proper termination within a system with multiple parts on the
bus and long printed circuit board traces. An RC lowpass
filter with a 3 dB corner frequency of about 40 MHz is
included on the LM95235’s SMBCLK input. Additional resis-
tance can be added in series with the SMBDAT and SMB-
CLK lines to further help filter noise and ringing. Minimize
noise coupling by keeping digital traces out of switching
power supply areas as well as ensuring that digital lines
containing high speed data communications cross at right
angles to the SMBDAT and SMBCLK lines.
L
www.national.com
24
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM95235_08 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Precision Remote Diode Temperature Sensor with SMBus Interface and TruTherm? Technology |
| LM95235CIMM | 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 |
| LM95235CIMM | 制造商:Texas Instruments 功能描述:TEMP SENSE REM DIODE SMD MSOP8 |
| LM95235CIMM/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 |
| LM95235CIMMX | 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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