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參數(shù)資料
| 型號： | LM45B |
| 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)： | 1/8頁 |
| 文件大?。?/td> | 195K |
| 代理商： | LM45B |
TL/H/11754
L
S
May 1995
LM45B/LM45C
SOT-23 Precision Centigrade Temperature Sensors
General Description
The LM45 series are precision integrated-circuit tempera-
ture sensors, whose output voltage is linearly proportional to
the Celsius (Centigrade) temperature. The LM45 does not
require any external calibration or trimming to provide accu-
racies of
g
2
§
C at room temperature and
g
3
§
C over a full
b
20 to
a
100
§
C temperature range. Low cost is assured by
trimming and calibration at the wafer level. The LM45’s low
output impedance, linear output, and precise inherent cali-
bration make interfacing to readout or control circuitry espe-
cially easy. It can be used with a single power supply, or with
plus and minus supplies. As it draws only 120
m
A from its
supply, it has very low self-heating, less than 0.2
§
C in still
air. The LM45 is rated to operate over a
b
20
§
to
a
100
§
C
temperature range.
Applications
Y
Battery Management
Y
FAX Machines
Y
Printers
Y
Portable Medical Instruments
Y
HVAC
Y
Power Supply Modules
Y
Disk Drives
Y
Computers
Y
Automotive
Features
Y
Calibrated directly in
§
Celsius (Centigrade)
Y
Linear
a
10.0 mV/
§
C scale factor
Y
g
3
§
C accuracy guaranteed
Y
Rated for full
b
20
§
to
a
100
§
C range
Y
Suitable for remote applications
Y
Low cost due to wafer-level trimming
Y
Operates from 4.0V to 10V
Y
Less than 120
m
A current drain
Y
Low self-heating, 0.20
§
C in still air
Y
Nonlinearity only
g
0.8
§
C max over temp
Y
Low impedance output, 20
X
for 1 mA load
Connection Diagram
SOT-23
TL/H/11754–1
Top View
See NS Package Number M03B
(JEDEC Registration TO-236AB)
SOT-23
Device
Marking
Order
Number
Supplied As
LM45BIM3
T4B
250 Units on Tape and Reel
LM45BIM3X
T4B
3000 Units on Tape and Reel
LM45CIM3
T4C
250 Units on Tape and Reel
LM45CIM3X
T4C
3000 Units on Tape and Reel
Typical Applications
TL/H/11754–3
FIGURE 1. Basic Centigrade Temperature
Sensor (
a
2.5
§
C to
a
100
§
C)
TL/H/11754–4
Choose R
1
e b
V
S
/50
m
A
V
OUT
e
(10 mV/
§
C
c
Temp
§
C)
V
OUT
e a
1,000 mV at
a
100
§
C
e a
250 mV at
a
25
§
C
e b
200 mV at
b
20
§
C
FIGURE 2. Full-Range Centigrade
Temperature Sensor (
b
20
§
C to
a
100
§
C)
C
1995 National Semiconductor Corporation
RRD-B30M75/Printed in U. S. A.
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參數(shù)描述 |
|---|---|
| LM45BIM3 | 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 |
| 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(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 |
| 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(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 |
| 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(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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