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MAX4073 Datasheet

  • MAX4073

  • "?Low-Cost, SC70, Voltage-Output, High-Side Current-Sense Am...

  • 261.46KB

  • Maxim   Maxim

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19-2048; Rev 0; 4/01
Low-Cost, SC70, Voltage-Output,
High-Side Current-Sense Amplifier
General Description
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鈥檚 wide 1.8MHz bandwidth makes it
suitable for use inside battery-charger control loops.
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.
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
擄
C to +125
擄
C) and is available in a
space-saving 5-pin SC70 package (half the size of the
SOT23).
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.
o
Three Gain Versions Available
+20V/V (MAX4073T)
+50V/V (MAX4073F)
+100V/V (MAX4073H)
o
鹵1.0% Full-Scale Accuracy
o
500碌A(chǔ) Supply Current
o
Wide 1.8MHz Bandwidth
o
+3V to +28V Operating Supply
o
Wide +2V to +28V Common-Mode Range
Independent of Supply Voltage
o
Automotive Temperature Range (-40
擄
C to +125
擄
C)
o
Available in Space-Saving 5-Pin SC70 Package
Features
o
Low-Cost, Compact, Current-Sense Solution
MAX4073T/F/H
Typical Operating Circuit
+2V TO +28V
V
SENSE
R
SENSE
+3V TO +28V
0.1碌F
MAX4073T/F/H
A/D
CONVERTER
OUT
GND
LOAD/
BATTERY
RS+
V
CC
RS-
I
LOAD
Applications
Cell Phones
Notebook Computers
Portable/Battery-Powered Systems
Smart Battery Packs/Chargers
PDAs
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
MAX4073TAXK-T
MAX4073TAUT-T
MAX4073FAXK-T
MAX4073FAUT-T
MAX4073HAXK-T
MAX4073HAUT-T
TEMP. RANGE
-40擄C to +125擄C
-40擄C to +125擄C
-40擄C to +125擄C
-40擄C to +125擄C
-40擄C to +125擄C
-40擄C to +125擄C
PIN-PACKAGE
5 SC70-5
6 SOT23-6
5 SC70-5
6 SOT23-6
5 SC70-5
6 SOT23-6
GAIN (V/V)
20
20
50
50
100
100
TOP MARK
ACM
AAUE
ACN
AAUF
ACO
AAUG
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim鈥檚 website at www.maxim-ic.com.

MAX4073 PDF文件相關(guān)型號(hào)

MAX4073FAUT-T,MAX4073FAXK-T,MAX4073HAUT-T,MAX4073HAXK-T,MAX4073TAUT-T,MAX4073TAXK-T

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