MAX4173F Maxim, MAX4173F Datasheet

no-image

MAX4173F

Manufacturer Part Number
MAX4173F
Description
The MAX4173 low-cost, precision, high-side current-sense amplifier is available in a tiny SOT23-6 package
Manufacturer
Maxim
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MAX4173FESA
Manufacturer:
MAXIM
Quantity:
6
Part Number:
MAX4173FESA
Manufacturer:
MAXIM/美信
Quantity:
20 000
Part Number:
MAX4173FESA+
Manufacturer:
MAXIM/美信
Quantity:
20 000
Part Number:
MAX4173FESA+T
Manufacturer:
MAXIM
Quantity:
13 264
Part Number:
MAX4173FESA+T
Manufacturer:
MAXIM/美信
Quantity:
20 000
Part Number:
MAX4173FEUT
Manufacturer:
MAXIM
Quantity:
5 321
Part Number:
MAX4173FEUT
Manufacturer:
PROTEK
Quantity:
6 000
Part Number:
MAX4173FEUT
Manufacturer:
MAXIM/美信
Quantity:
20 000
Part Number:
MAX4173FEUT+
Manufacturer:
MAXIM/美信
Quantity:
20 000
Part Number:
MAX4173FEUT+T
Manufacturer:
ON
Quantity:
202
Part Number:
MAX4173FEUT+T
Manufacturer:
MAXIM
Quantity:
5 000
Part Number:
MAX4173FEUT+T
0
Part Number:
MAX4173FEUT-T
Manufacturer:
ST
0
The MAX4173 low-cost, precision, high-side current-
sense amplifier is available in a tiny SOT23-6 package.
It features a voltage output that eliminates the need for
gain-setting resistors and it is ideal for today’s notebook
computers, cell phones, and other systems where cur-
rent monitoring is critical. High-side current monitoring
is especially useful in battery-powered systems, since it
does not interfere with the ground path of the battery
charger. The input common-mode range of 0 to +28V is
independent of the supply voltage and ensures that the
current-sense feedback remains viable even when con-
nected to a battery in deep discharge. The MAX4173’s
wide 1.7MHz bandwidth makes it suitable for use inside
battery charger control loops.
The combination of three gain versions and a user-
selectable external sense resistor sets the full-scale
current reading. This feature offers a high level of inte-
gration, resulting in a simple and compact current-
sense solution.
The MAX4173 operates from a single +3V to +28V sup-
ply, typically draws only 420µA of supply current over
the extended operating temperature range (-40°C to
+85°C), and is offered in the space-saving SOT23
package.
19-1434; Rev 5; 4/11
+ Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Pin Configurations appear at end of data sheet.
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.
MAX4173TEUT+T
MAX4173TESA+
MAX4173FEUT+T
MAX4173FESA+
MAX4173HEUT+T
MAX4173HESA+
Notebook Computers
Portable/Battery-Powered Systems
Smart Battery Packs/Chargers
Cell Phones
Power-Management Systems
General System/Board-Level Current Monitoring
PA Bias Control
Precision Current Sources
PART
________________________________________________________________ Maxim Integrated Products
General Description
GAIN (V/V)
Low-Cost, SOT23, Voltage-Output,
High-Side Current-Sense Amplifier
Applications
100
100
20
20
50
50
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
o Low-Cost, Compact Current-Sense Solution
o High Accuracy +2V to +28V Common-Mode
o Three Gain Versions Available
o ±0.5% Full-Scale Accuracy
o ±3mV Input Offset Voltage (MAX4173T)
o Wide 1.7MHz Bandwidth (MAX4173T)
o 420µA Supply Current
o Available in Space-Saving SOT23 Package
Range, Functional Down to 0V, Independent of
Supply Voltage
+20V/V (MAX4173T)
+50V/V (MAX4173F)
+100V/V (MAX4173H)
CONVERTER
+3V TO +28V
0 TO +28V
A/D
0.1µF
Typical Operating Circuit
6 SOT23
8 SO
6 SOT23
8 SO
6 SOT23
8 SO
PIN-PACKAGE
RS+
OUT
V
Ordering Information
CC
MAX4173T/F/H
R
V
GND
SENSE
SENSE
RS-
I
LOAD
SOT TOP MARK
BATTERY
LOAD/
Features
AABN
AABO
AABP
1

Related parts for MAX4173F

MAX4173F Summary of contents

Page 1

... Low-Cost, Compact Current-Sense Solution o High Accuracy +2V to +28V Common-Mode Range, Functional Down to 0V, Independent of Supply Voltage o Three Gain Versions Available +20V/V (MAX4173T) +50V/V (MAX4173F) +100V/V (MAX4173H) o ±0.5% Full-Scale Accuracy o ±3mV Input Offset Voltage (MAX4173T) o Wide 1.7MHz Bandwidth (MAX4173T) o 420µA Supply Current ...

Page 2

... V = +28V, V SENSE CC RS +100mV +12V, V SENSE CC RS +12V +12V +6.25mV CC RS+ SENSE (Note 4) MAX4173T +3.0V 28V 250mV SENSE MAX4173F +7.5V 28V 250mV SENSE MAX4173H +15V 28V 250mV SENSE MAX4173TEUT +25° +5V 0.89V -40°C to +85°C ...

Page 3

... A V SENSE to +100mV V = +12V 12V 5pF LOAD V SENSE to +6.25mV ≥ +2V MAX4173T 80mV, V SENSE RS+ ≥ +2V MAX4173F 32mV, V SENSE RS+ ≥ +2V MAX4173H 16mV, V SENSE RS +100mV 5pF SENSE LOAD V = +12V 12V (Note 7) CC RS+ = +25°C. All temperature limits are guaranteed by design ∞ unless otherwise noted. Typical values are at ...

Page 4

... SUPPLY VOLTAGE (V) TOTAL OUTPUT ERROR vs. COMMON-MODE VOLTAGE 6 4 MAX4173H MAX4173T MAX4173F - - COMMON-MODE VOLTAGE (V) SUPPLY CURRENT vs. RS+ VOLTAGE 1.4 1.2 1.0 0.8 MAX4173T 0.6 MAX4173F 0.4 MAX4173H 0 0.5 1.0 1.5 2.0 V (V) RS+ TOTAL OUTPUT ERROR vs. FULL-SCALE SENSE VOLTAGE MAX4173H 1 0 MAX4173T -1 MAX4173F - ...

Page 5

... LARGE-SIGNAL TRANSIENT RESPONSE (V = 6mV to 100mV) SENSE C = 5pF L IN OUT 2µs/div MAX4173H LARGE-SIGNAL TRANSIENT RESPONSE (V = 6mV to 100mV) SENSE C = 5pF L IN OUT 2µs/div MAX4173F SMALL-SIGNAL TRANSIENT RESPONSE (V = 95mV TO 100mV) SENSE C = 5pF L IN OUT 2µs/div 100mV 6mV 2V 0.120V 100mV 6mV 10V 0.6V 100mV 95mV 5V 4 ...

Page 6

Low-Cost, SOT23, Voltage-Output, High-Side Current-Sense Amplifier (V = +12V +12V +100mV RS+ SENSE MAX4173H SMALL-SIGNAL TRANSIENT RESPONSE (V = 95mV to 100mV) SENSE C = 5pF L IN (5mV/div) OUT (200mV/div) 2µs/div PIN NAME ...

Page 7

... RG1)( The parts gain equals · SENSE · LOAD β RGD / RG1. Therefore, V · OUT (I ), where GAIN = 20 for MAX4173T, GAIN = 50 for LOAD MAX4173F, and GAIN = 100 for MAX4173H. R SENSE V SOURCE 0 TO +28V RS+ I RG1 +3V TO +28V ...

Page 8

Low-Cost, SOT23, Voltage-Output, High-Side Current-Sense Amplifier Table 1. Recommended Component Values FULL-SCALE LOAD CURRENT I (A) LOAD 0 INPUT R SENSE 0.3 in. COPPER 0.1 in. COPPER SENSE RS+ RS MAX4173T OUT ...

Page 9

... SOT23 Package Information For the latest package outline information and land patterns (footprints www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. ...

Page 10

... Updated V RS+ Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 10 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © ...

Related keywords