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MAX4073

更新时间： 2024-11-30 14:58:19
品牌 Logo 应用领域
亚德诺 - ADI 放大器
页数 文件大小 规格书
12页 360K
描述
低成本、SC70封装、电压输出、高边电流检测放大器

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中文翻译

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MAX4073 数据手册

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MAX4073T/F/H  
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.  
♦ Low-Cost, Compact, Current-Sense Solution  
♦ Three Gain Versions Available  
+20V/V (MAX4073T)  
+50V/V (MAX4073F)  
+100V/V (MAX4073H)  
♦
1ꢀ0ꢁ Full-Scale Accuracꢂ  
♦ 500µA Supplꢂ Current  
♦ Wide 1ꢀ8MHz Bandwidth  
♦ +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.  
♦ Wide +2V to +28V Common-Mode Range  
Independent of Supplꢂ Voltage  
♦ Automotive Temperature Range (-40°C to +125°C)  
♦ 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  
LOW-COST  
SWITCHING  
REGULATOR  
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.  
V
IN  
+2V TO +28V  
R
SENSE  
RS+  
RS-  
+3V TO +28V  
Applications  
Cell Phones  
V
CC  
0.1µF  
MAX4073T/F/H  
Notebook Computers  
Portable/Battery-Powered Systems  
Smart Battery Packs/Chargers  
PDAs  
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 sheetꢀ  
Ordering Information  
PART  
TEMPꢀ 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  
GAIN (V/V)  
TOP MARK  
ACM  
MAX4073TAXK+T  
MAX4073TAUT+T  
MAX4073FAXK+T  
MAX4073FAUT+T  
MAX4073HAXK+T  
MAX4073HAUT+T  
20  
20  
6 SOT23  
5 SC70  
AAUE  
ACN  
50  
6 SOT23  
5 SC70  
50  
AAUF  
ACO  
100  
100  
6 SOT23  
AAUG  
+Denotes lead(Pb)-free/RoHS-compliant package.  
For pricing, deliverꢂ, and ordering information, please contact Maxim Direct  
at 1-888-629-4642, or visit Maxim’s website at wwwꢀmaximintegratedꢀcomꢀ  
19-2048; Rev 1; 8/12  
1234567...12

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