MAX4376FASA Maxim Integrated Products, MAX4376FASA Datasheet
MAX4376FASA
Manufacturer Part Number
MAX4376FASA
Description
Manufacturer
Maxim Integrated Products
Specifications of MAX4376FASA
Pack_quantity
100
Comm_code
85423300
Lead_time
91
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MAX4376FASA
Manufacturer:
MAXIM/美信
Quantity:
20 000
The MAX4376/MAX4377/MAX4378 single, dual, and
quad precision high-side current-sense amplifiers are
available in space-saving packages. They feature
buffered voltage outputs that eliminate the need for
gain-setting resistors and are ideal for today’s notebook
computers, cell phones, and other systems where cur-
rent monitoring is critical. These precision devices are
offered in three fixed-gain versions of 20, 50, and 100:
For example, MAX4376TAUK is a single high-side
amplifier with a gain of 20.
High-side current monitoring is especially useful in bat-
tery-powered systems since it does not interfere with
the ground path of the battery charger. The input com-
mon-mode range of 0 to +28V is independent of the
supply voltage and ensures that the current-sense
feedback remains viable even when connected to a
battery pack in deep discharge.
The full-scale current reading can be set by choosing
the appropriate voltage gain and external-sense resis-
tor. This capability offers a high level of integration and
flexibility, resulting in a simple and compact current-
sense solution.
The MAX4376/MAX4377/MAX4378 operate over a sup-
ply voltage range of +3V to +28V, draw 1mA of supply
current per amplifier, and operate over the full automo-
tive temperature range of -40°C to +125°C. These
devices have a wide bandwidth of 2MHz, making them
suitable for use inside battery-charger control loops.
The buffered outputs drive up to 2mA of output current
into a ground-referenced load.
The MAX4376 is available in a tiny 5-pin SOT23 pack-
age. The MAX4377/MAX4378 are available in space-
saving 8-pin µMAX and 14-pin TSSOP packages,
respectively.
19-1781; Rev 3; 5/04
Notebook Computers
Current-Limited Power
Supplies
Fuel Gauges in PC
General-System/Board-
Level Current Monitoring
Battery Chargers
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.
Single/Dual/Quad, High-Side Current-Sense
GAIN
100
20
50
________________________________________________________________ Maxim Integrated Products
General Description
Portable/Battery-Powered
Systems
Cell Phones
Smart Battery Packages
Automotive Current Detect
Power Management
Systems
PA Bias Control
SUFFIX
T
F
H
Applications
Amplifiers with Internal Gain
o Low-Cost, Single/Dual/Quad, High-Side Current-
o ±0.5% Typical Full-Scale Accuracy
o +3V to +28V Supply Operation
o Adjustable Current-Sense Capability with External
o Buffered Output Voltage with 2mA Drive
o 1mA (typ) Supply Current
o 2.0MHz Bandwidth (Gain = +20V/V)
o Automotive Temperature Range (-40°C to +125°C)
o Full 0 to 28V Common-Mode Range, Independent
o Three Gain Versions Available
o Available in Space-Saving 5-Pin SOT23 (Single),
Ordering Information continued at end of data sheet.
Pin Configurations continued at end of data sheet.
MAX4376 T AUK-T
MAX4376FAUK-T
MAX4376HAUK-T
MAX4376TASA
MAX4376FASA
MAX4376HASA
Sense Amplifiers
Sense Resistor
of Supply Voltage
8-Pin µMAX (Dual), and 14-Pin TSSOP (Quad)
+20V/V (MAX437_T)
+50V/V (MAX437_F)
+100V/V (MAX437_H)
PART
TOP VIEW
GND
(+V/V)
OUT
GAIN
V
100
100
CC
20
50
20
50
1
2
3
Ordering Information
-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
MAX4376
SOT23
RANGE
Pin Configurations
TEMP
5
4
RS-
RS+
PIN-
PACKAGE
5 SOT23-5
5 SOT23-5
5 SOT23-5
8 SO
8 SO
8 SO
Features
ADOG
ADOH
MARK
ADOI
TOP
—
—
—
1
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