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MAX4073T

更新时间： 2024-11-28 22:35:23
品牌 Logo 应用领域
美信 - MAXIM 放大器
页数 文件大小 规格书
10页 261K
描述
Low-Cost, SC70, Voltage-Output, High-Side Current-Sense Amplifier

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MAX4073T 数据手册

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19-2048; Rev 0; 4/01  
Low-Cost, SC70, Voltage-Output,  
High-Side Current-Sense Amplifier  
General Description  
Features  
The MAX4073 low-cost, high-side current-sense ampli-  
fier features a voltage output that eliminates the need  
for gain-setting resistors making it ideal for cell phones,  
notebook computers, PDAs, and other systems where  
current monitoring is crucial. High-side current moni-  
toring does not interfere with the ground path of the  
battery charger making the MAX4073 particularly useful  
in battery-powered systems. The input common-mode  
range of +2V to +28V is independent of the supply volt-  
age. The MAX4073’s wide 1.8MHz bandwidth makes it  
suitable for use inside battery-charger control loops.  
o Low-Cost, Compact, Current-Sense Solution  
o Three Gain Versions Available  
+20V/V (MAX4073T)  
+50V/V (MAX4073F)  
+100V/V (MAX4073H)  
o
1ꢀ0ꢁ Full-Scale Accuracꢂ  
o 500µA Supplꢂ Current  
o Wide 1ꢀ8MHz Bandwidth  
o +3V to +28V Operating Supplꢂ  
The combination of three gain versions and a selec-  
table external-sense resistor sets the full-scale current  
reading. The MAX4073 offers a high level of integra-  
tion, resulting in a simple and compact current-sense  
solution.  
o Wide +2V to +28V Common-Mode Range  
Independent of Supplꢂ Voltage  
o Automotive Temperature Range (-40°C to +125°C)  
o Available in Space-Saving 5-Pin SC70 Package  
The MAX4073 operates from a +3V to +28V single sup-  
ply and draws only 0.5mA of supply current. This  
device is specified over the automotive operating tem-  
perature range (-40°C to +125°C) and is available in a  
space-saving 5-pin SC70 package (half the size of the  
SOT23).  
Typical Operating Circuit  
I
LOAD  
V
SENSE  
+2V TO +28V  
For a similar device in a 6-pin SOT23 with a wider com-  
mon-mode voltage range (0 to +28V), see the  
MAX4173 data sheet.  
R
SENSE  
RS+  
RS-  
+3V TO +28V  
V
CC  
Applications  
Cell Phones  
Notebook Computers  
0.1µF  
MAX4073T/F/H  
Portable/Battery-Powered Systems  
Smart Battery Packs/Chargers  
PDAs  
A/D  
CONVERTER  
LOAD/  
BATTERY  
OUT  
GND  
Power Management Systems  
PA Bias Control  
General System/Board-Level Current Monitoring  
Precision Current Sources  
Pin Configurations appear at end of data sheet.  
Ordering Information  
PART  
TEMP. RANGE  
-40°C to +125°C  
-40°C to +125°C  
-40°C to +125°C  
-40°C to +125°C  
-40°C to +125°C  
-40°C to +125°C  
PIN-PACKAGE  
5 SC70-5  
GAIN (V/V)  
TOP MARK  
ACM  
MAX4073TAXK-T  
MAX4073TAUT-T  
MAX4073FAXK-T  
MAX4073FAUT-T  
MAX4073HAXK-T  
MAX4073HAUT-T  
20  
20  
6 SOT23-6  
5 SC70-5  
AAUE  
ACN  
50  
6 SOT23-6  
5 SC70-5  
50  
AAUF  
ACO  
100  
100  
6 SOT23-6  
AAUG  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at  
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.  
1234567...10

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