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參數(shù)資料
| 型號： | LM45BIM3 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | SOT-23 Precision Centigrade Temperature Sensors |
| 中文描述： | 采用SOT - 23精密攝氏溫度傳感器 |
| 文件頁數(shù)： | 1/9頁 |
| 文件大小： | 215K |
| 代理商： | LM45BIM3 |
LM45
SOT-23 Precision Centigrade Temperature Sensors
General Description
The LM45 series are precision integrated-circuit temperature
sensors, whose output voltage is linearly proportional to the
Celsius (Centigrade) temperature. The LM45 does not re-
quire any external calibration or trimming to provide accura-
cies of
±
2C at room temperature and
±
3C over a full 20 to
+100C temperature range. Low cost is assured by trimming
and calibration at the wafer level. The LM45’s low output im-
pedance, linear output, and precise inherent calibration
make interfacing to readout or control circuitry especially
easy. It can be used with a single power supply, or with plus
and minus supplies. As it draws only 120 μA from its supply,
it has very low self-heating, less than 0.2C in still air. The
LM45 is rated to operate over a 20 to +100C temperature
range.
Applications
n
Battery Management
n
FAX Machines
n
Printers
n
Portable Medical Instruments
n
HVAC
n
Power Supply Modules
n
Disk Drives
n
Computers
n
Automotive
Features
n
Calibrated directly in Celsius (Centigrade)
n
Linear + 10.0 mV/C scale factor
n
±
3C accuracy guaranteed
n
Rated for full 20 to +100C range
n
Suitable for remote applications
n
Low cost due to wafer-level trimming
n
Operates from 4.0V to 10V
n
Less than 120 μA current drain
n
Low self-heating, 0.20C in still air
n
Nonlinearity only
±
0.8C max over temp
n
Low impedance output, 20
for 1 mA load
Connection Diagram
SOT-23
Device
Marking
T4B
T4B
T4C
T4C
Order
Number
LM45BIM3
LM45BIM3X
LM45CIM3
LM45CIM3X
Supplied As
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
Typical Applications
SOT-23
DS011754-1
Top View
See NS Package Number MA03B
DS011754-3
FIGURE 1. Basic Centigrade Temperature
Sensor (+2.5C to +100C)
DS011754-4
Choose R
= V
/50 μA
V
OUT
= (10 mV/C x Temp C)
V
OUT
= +1,000 mV at +100C
= +250 mV at +25C
= 200 mV at 20C
FIGURE 2. Full-Range Centigrade
Temperature Sensor (20C to +100C)
July 1999
L
1999 National Semiconductor Corporation
DS011754
www.national.com
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM45BIM3 | 制造商:Texas Instruments 功能描述:PRECISION TEMP SENSOR SMD SOT233 |
| LM45BIM3/NOPB | 功能描述:板上安裝溫度傳感器 PREC CENTIGRADE TEMP SENSOR 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(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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| LM45BIM3X | 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(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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| LM45BIM3X/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(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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| LM45C | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SOT-23 Precision Centigrade Temperature Sensors |
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