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參數資料
| 型號： | LM50B |
| 文件頁數： | 1/8頁 |
| 文件大?。?/td> | 174K |
| 代理商： | LM50B |
TL/H/12030
L
June 1996
LM50B/LM50C
SOT-23 Single-Supply Centigrade Temperature Sensor
General Description
The LM50 is a precision integrated-circuit temperature sen-
sor that can sense a
b
40
§
C to
a
125
§
C temperature range
using a single positive supply. The LM50’s output voltage is
linearly proportional to Celsius (Centigrade) temperature
(
a
10 mV/
§
C) and has a DC offset of
a
500 mV. The offset
allows reading negative temperatures without the need for a
negative supply. The ideal output voltage of the LM50
ranges from
a
100 mV to
a
1.75V for a
b
40
§
C to
a
125
§
C
temperature range. The LM50 does not require any external
calibration or trimming to provide accuracies of
g
3
§
C at
room temperature and
g
4
§
C over the full
b
40
§
C to
a
125
§
C temperature range. Trimming and calibration of the
LM50 at the wafer level assure low cost and high accuracy.
The LM50’s linear output,
a
500 mV offset, and factory cali-
bration simplify circuitry required in a single supply environ-
ment where reading negative temperatures is required. Be-
cause the LM50’s quiescent current is less than 130
m
A,
self-heating is limited to a very low 0.2
§
C in still air.
Applications
Y
Computers
Y
Disk Drives
Y
Battery Management
Y
Automotive
Y
FAX Machines
Y
Printers
Y
Portable Medical Instruments
Y
HVAC
Y
Power Supply Modules
Features
Y
Calibrated directly in
§
Celsius (Centigrade)
Y
Linear
a
10.0 mV/
§
C scale factor
Y
g
2
§
C accuracy guaranteed at
a
25
§
C
Y
Specified for full
b
40
§
to
a
125
§
C range
Y
Suitable for remote applications
Y
Low cost due to wafer-level trimming
Y
Operates from 4.5V to 10V
Y
Less than 130
m
A current drain
Y
Low self-heating, less than 0.2
§
C in still air
Y
Nonlinearity less than 0.8
§
C over temp
Connection Diagram
SOT-23
TL/H/12030–1
Top View
See NS Package Number M03B
(JEDEC Registration TO-236AB)
Order
Number
SOT-23
Supplied As
Device Marking
LM50BIM3
T5B
250 Units on Tape and Reel
LM50CIM3
T5C
250 Units on Tape and Reel
LM50BIM3X
T5B
3000 Units on Tape and Reel
LM50CIM3X
T5C
3000 Units on Tape and Reel
Typical Application
TL/H/12030–3
FIGURE 1. Full-Range Centigrade Temperature Sensor (
b
40
§
C to
a
125
§
C)
C
1996 National Semiconductor Corporation
RRD-B30M76/Printed in U. S. A.
http://www.national.com
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LM50BIM3 | 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 |
| LM50BIM3 | 制造商:Texas Instruments 功能描述:TEMPERATURE SENSOR SMD SOT-23-3 |
| LM50BIM3/NOPB | 功能描述:板上安裝溫度傳感器 -40 To +125C Sot23 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 |
| LM50BIM3/NOPB | 制造商:Texas Instruments 功能描述:Temperature Sensor IC |
| LM50BIM3NOPB | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LM50/LM50-Q1 SOT-23 Single-Supply Centigrade Temperature Sensor |
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