參數(shù)資料
型號(hào)： TC77-3.3MOA
廠商： Microchip Technology Inc.
英文描述： Thermal Sensor with SPI Interface
中文描述： 熱傳感器，SPI接口
文件頁(yè)數(shù)： 12/22頁(yè)
文件大?。?/td> 374K
代理商： TC77-3.3MOA
TC77
DS20092A-page 12
2002 Microchip Technology Inc.
5.0
APPLICATION INFORMATION
The TC77 does not require any additional components
in order to measure temperature. However, it is recom-
mended that a decoupling capacitor of 0.1 μF to 1 μF
be provided between the V
DD
and V
SS
(Ground) pins (a
high frequency ceramic capacitor should be used). It is
necessary for the capacitor to be located as close as
possible to the integrated circuit (IC) power pins in
order to provide effective noise protection to the TC77.
The TC77 measures temperature by monitoring the
voltage of a diode located on the IC die. A low-imped-
ance thermal path between the die and the printed cir-
cuit board (PCB) is provided by the IC pins of the TC77.
Therefore, the TC77 effectively monitors the tempera-
ture of the PCB board. The thermal path between the
ambient air is not as efficient because the plastic IC
housing package functions as a thermal insulator.
Thus, the ambient air temperature (assuming that a
large temperature gradient exists between the air and
PCB) has only a small effect on the temperature
measured by the TC77.
A potential for self-heating errors can exist if the TC77
SPI communication lines are heavily loaded. Typically,
the self-heating error is negligible because of the rela-
tively small current consumption of the TC77. A tem-
perature accuracy error of approximately 0.5°C will
result from self-heating if the SPI communication pins
sink/source the maximum current specified for the
TC77. Therefore, to maximize the temperature accu-
racy, the output loading of the SPI signals should be
minimized.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TC775.0MCTTR 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Thermal Sensor with SPI Interface
TC77-5.0MCTTR 功能描述:板上安裝溫度傳感器 High-Accuracy 13-bit 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
TC77-5.0MCTTR-CUT TAPE 制造商:Microchip 功能描述:TC77 Series 5.5 V Thermal Sensor with SPI?Interface - SOT-23A-5
TC775.0MOA 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Thermal Sensor with SPI Interface
TC77-5.0MOA 功能描述:板上安裝溫度傳感器 High-Accuracy 13-bit 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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