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參數(shù)資料
| 型號(hào)： | MLX90247B |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Thermopile w/On-Chip Thermistor |
| 中文描述： | 熱電瓦特/片上熱敏電阻 |
| 文件頁(yè)數(shù)： | 1/4頁(yè) |
| 文件大?。?/td> | 78K |
| 代理商： | MLX90247B |
MLX90247B
Thermopile w/On-Chip Thermistor
MLX90247B Discrete Infrared Sensor IC
Page 1
Rev 1.0 17/Feb/01
Features and Benefits
Solid state sensor
High reliability
Low cost, small size
On chip temperature sensor
Applications
Non-Contact Temperature Sensing
Differential Temperature Sensing
Climate Control
Ear, Temple Thermometers
Household and Commercial Appliances
Ordering Information
Part No.
MLX90247B
Thermopile with On-chip PTC Thermistor
Functional Diagram
+
Description
The MLX90247B is a thermopile sensor IC which
detects very small amounts of heat radiation. The
sensor consists of a membrane with a thermopile on
top of it.
The hot junctions of the thermopile are positioned
near the center of the membrane, the cold junctions
above the bulk silicon edge.
Due to the low thermal conductivity of the
membrane,
absorbed
temperature to increase more at the center of the
membrane than at the edge above the bulk. This
temperature difference is converted to an electric
potential by the thermo-electric effect in the
thermopile junctions. No supply voltage is needed.
heat
will
cause
the
The sensor IC is integrated together with a PTC
thermistor in one silicon mass. The PTC is adjacent
to the cold junctions of the thermopile. As such, use
of the PTC is considered the more accurate method
of measuring thermopile cold junction temperature,
and thus overall sensor accuracy when making non-
contact temperature measurement.
The sensor and thermistor can be used independent
of each other if desired, as the thermopile potential
is floating.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MLX90247C | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Thermopile w/NTC Thermistor |
| MLX90247DSA | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Discrete Infrared Thermopile Detectors |
| MLX90247DSE | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Discrete Infrared Thermopile Detectors |
| MLX90247DSG | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Discrete Infrared Thermopile Detectors |
| MLX90247ESF-C | 功能描述:IC SENS THERMOPILE W/THERM TO-39 RoHS:否 類別:傳感器，轉(zhuǎn)換器 >> 溫度 系列:- 其它有關(guān)文件:DS1820 Digital Thermometer 標(biāo)準(zhǔn)包裝:500 系列:- 感應(yīng)溫度:-55°C ~ 125°C 輸出類型:開(kāi)路漏極 電源電壓:3 V ~ 5.5 V 精確度:±0.5°C 封裝/外殼:TO-226-3、TO-92-3 標(biāo)準(zhǔn)主體 供應(yīng)商設(shè)備封裝:TO-92 包裝:散裝 |
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