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MAX4376/MAX4377/
MAX4378
Single/Dual/Quad, High-Side
Current-Sense Amplifiers with Internal Gain
General Description
Features
GAIN
SUFFIX
20
T
50
F
100
H
For example, MAX4376TAUK is a single high-side amplifier
with a gain of 20.
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 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 resistor. 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 supply
voltage range of +3V to +28V, draw 1mA of supply current
per amplifier, and operate over the full automotive 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 package.
The MAX4377/MAX4378 are available in space-saving
8-pin µMAX® and 14-pin TSSOP packages, respectively.
Applications
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
current monitoring is critical. These precision devices are
offered in three fixed-gain versions of 20, 50, and 100:
Typical Operating Circuit
●●
●●
●●
●●
●●
●●
●●
●●
●●
●●
●●
●●
Notebook Computers
Current-Limited Power Supplies
Fuel Gauges in PC
General-System/Board-Level Current Monitoring
Battery Chargers
Portable/Battery-Powered Systems
Cell Phones
Smart Battery Packages
Automotive Current Detect
Power Management Systems
PA Bias Control
Automotive
ILOAD
VSENSE
0 TO +28V
●● Low-Cost, Single/Dual/Quad, High-Side CurrentSense Amplifiers
●● ±0.5% Typical Full-Scale Accuracy
●● +3V to +28V Supply Operation
●● Adjustable Current-Sense Capability with External
Sense Resistor
●● Buffered Output Voltage with 2mA Drive
●● 1mA (typ) Supply Current
●● 2.0MHz Bandwidth (Gain = +20V/V)
●● Automotive Temperature Range (-40°C to +125°C)
●● High Accuracy +2V to +28V Common-Mode Range,
Functional Down to 0V, Independent of Supply Voltage
●● Three Gain Versions Available
+20V/V (MAX437_T)
+50V/V (MAX437_F)
+100V/V (MAX437_H)
●● Available in Space-Saving 5-Pin SOT23 (Single),
8-Pin µMAX (Dual), and 14-Pin TSSOP (Quad)
●● AEC-Q100 Qualified, Refer to Ordering Information
for the List of /V Parts
RSENSE
+3V TO +28V
0.1µF
RS+
VCC
RS-
MAX4376T/F/H
A/D
CONVERTER
LOAD/
BATTERY
OUT
GND
19-1781; Rev 13; 11/19
µMAX is a registered trademark of Maxim Integrated Products, Inc.
MAX4376/MAX4377/
MAX4378
Single/Dual/Quad, High-Side
Current-Sense Amplifiers with Internal Gain
Absolute Maximum Ratings
VCC, RS+, RS- to GND..........................................-0.3V to +30V
OUT to GND.............................................. -0.3V to (VCC + 0.3V)
Differential Input Voltage (VRS+ - VRS- )................................±8V
Output Short Circuit to VCC........................................Continuous
Output Short Circuit to GND.................................................... 1s
Current into Any Pin..........................................................±20mA
Continuous Power Dissipation (TA = +70°C)
5-Pin SOT23 (derate 3.10mW/°C above +70°C)....246.70mW
8-Pin µMAX (derate 4.5mW/°C above +70°C).............362mW
8-Pin SO (derate 5.88mW/°C above +70°C)................471mW
14-Pin SO (derate 8.33mW/°C above +70°C)..............667mW
14-Pin TSSOP (derate 9.1mW/°C above +70°C).........727mW
Operating Temperature Range.......................... -40°C to +125°C
Junction Temperature.......................................................+150°C
Storage Temperature Range............................. -65°C to +150°C
Lead Temperature (soldering, 10s)................................. .+300°C
Soldering Temperature (reflow)........................................+260°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Package Information
5 SOT23
PACKAGE CODE
U5+2, U5+2A
Outline Number
21-0057
Land Pattern Number
90-0174
Thermal Resistance, Multi-Layer Board:
Junction to Ambient (θJA)
255.90°C/W
Junction to Case (θJC)
81°C/W
For the latest package outline information and land patterns (footprints), go to www.maximintegrated.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.
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board.
For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
www.maximintegrated.com
Maxim Integrated │ 2
MAX4376/MAX4377/
MAX4378
Single/Dual/Quad, High-Side
Current-Sense Amplifiers with Internal Gain
Electrical Characteristics
(VRS+ = 0 to 28V, VSENSE = (VRS+ - VRS- ) = 0V, VCC = +3.0V to +28V, RL = ∞, TA = TMIN to TMAX, unless otherwise noted. Typical
values are at TA = +25°C.) (Note 1)
MAX
UNITS
Operating Voltage Range
PARAMETER
VCC
Guaranteed by PSR test
3
28
V
Common-Mode Input Range
VCM
Guaranteed by total OUT voltage error test
0
28
V
Common-Mode Rejection
CMR
2V ≤ VRS+ ≤ 28V, VSENSE = 100mV
90
VSENSE = 5mV, VRS+ > 2.0V, VCC = 12V
1
2.2
mA
8
mA
Supply Current per Amplifier
Leakage Current
SYMBOL
ICC
IRS+, IRSIRS+
Input Bias Current
IRSFull-Scale Sense Voltage
CONDITIONS
MIN
TYP
dB
VCC = 0V, VRS+ = 28V
VRS+ > 2.0V
0
60
VRS+ ≤ 2.0V
-400
+60
VRS+ > 2.0V
0
120
VRS+ ≤ 2.0V
-800
+120
VSENSE
150
mV
VSENSE = 100mV,
VCC = 12V, VRS+ = 12V
VSENSE = 100mV,
VCC = 12V, TA = +25°C,
VRS+ = 12V
±6.75
±0.5
VSENSE = 100mV,
VCC = 28V, VRS+ = 28V
Total OUT Voltage Error (Note 2)
OUT High Voltage (Note 4)
OUT Low Voltage
www.maximintegrated.com
IOUT ≤ 2mA
VOL
±3.25
±11
%
VSENSE = 100mV,
VCC = 28V, VRS+ = 28V,
TA = +25°C
±0.5
±5
VSENSE = 100mV,
VCC = 12V, VRS+ = 0.1V
±9
±32
VSENSE = 6.25mV,
VCC = 12V, VRS+ = 12V
(Note 3)
±7
(VCC - VOUT) VCC = 3V, IOUT = 2mA, VRS+ = 28V
IOUT = 200µA, VCC = VRS+ = 12V,
VSENSE = 0V, TA = +25°C
mA
0.9
1.2
V
25
40
mV
Maxim Integrated │ 3
MAX4376/MAX4377/
MAX4378
Single/Dual/Quad, High-Side
Current-Sense Amplifiers with Internal Gain
Electrical Characteristics (continued)
(VRS+ = 0 to 28V, VSENSE = (VRS+ - VRS- ) = 0V, VCC = +3.0V to +28V, RL = ∞, TA = TMIN to TMAX, unless otherwise noted. Typical
values are at TA = +25°C.) (Note 1)
PARAMETER
Bandwidth
SYMBOL
BW
Slew Rate
SR
Gain
AV
Gain Accuracy
DAV
OUT Setting Time to 1% of
Final Value
CONDITIONS
VCC = 12V
VRS+ = 12V
VSENSE = 15pF
MIN
TYP
VSENSE = 100mV
(gain = +20V/V)
2
VSENSE = 100mV
(gain = +50V/V)
1.7
VSENSE = 100mV
(gain = +100V/V)
1.2
VSENSE = 6.25mV (Note 3)
0.5
10
MAX437_T
+20
MAX437_F
+50
MAX437_H
+100
VSENSE = 10mV to
150mV, VCC = 20V,
IOUT = 2mA, gain = 100,
VRS+ = 12V
VCC = 12V, VRS+ = 12V,
CLOAD = 15pF
V/µs
V/V
TA = TMIN to TMAX
±5.5
TA = +25°C
±0.5
5.5
TA = +25°C
±0.5
VSENSE = 6.25mV
to 100mV
400
VSENSE = 100mV
to 6.25mV
800
CLOAD
No sustained oscillation
Output Resistance
ROUT
VSENSE = 100mV
Power-Supply Rejection
PSR
VRS+ > 2V, VOUT = 1.6V, VCC = 3V to 28V
±2.5
%
TA = TMIN to TMAX
Maximum Capacitive Load
UNITS
MHz
VSENSE = 20mV to 100mV, CLOAD = 15pF
VSENSE = 10mV to
150mV, VCC = 12V,
IOUT = 2mA, gain = 20
and 50, VRS+ = 12V
MAX
±2.5
ns
1000
66
pF
5
W
90
dB
Power-Up Time to 1% of Final
Value
VSENSE = 100mV, CLOAD = 15pF
2
µs
Saturation Recovery Time to
1% of Final Value
VCC = 12V, VRS+ = 12V, CLOAD = 15pF,
VSENSE = 100mV
1
µs
Reverse Recovery Time to 1%
of Final Value
VCC = 12V, VRS_ = 12V, CLOAD = 15pF,
VSENSE = -100mV to +100mV
1
µs
Note
Note
Note
Note
1: All devices are 100% production tested at TA = +25°C. All temperature limits are guaranteed by design.
2: Total OUT Voltage Error is the sum of gain and offset errors.
3: 6.25mV = 1/16 of 100mV full-scale sense voltage.
4: VSENSE such that VOUT is in saturation.
www.maximintegrated.com
Maxim Integrated │ 4
MAX4376/MAX4377/
MAX4378
Single/Dual/Quad, High-Side
Current-Sense Amplifiers with Internal Gain
Typical Operating Characteristics
(VCC = VRS+ = 12V, VSENSE = 100mV, TA = +25°C.)
MAX4376T
0.80
0.75
0.70
0.65
0.60
MAX4376F
0.8
MAX4376T
0.6
0.4
15
20
25
30
-50
-25
0
25
50
75
100
MAX4376H
4
3
MAX4376/7/8 toc04
5
MAX4376F
2
1
0
MAX4376T
-2
5
10
15
20
25
0.6
0.4
MAX4376T
-1.5
20
0
-0.2
-0.4
-0.6
-1.0
MAX4376F
MAX4376T
0
5
1.0
10
15
20
25
0.8
TOTAL OUTPUT ERROR (%)
MAX4376F
15
MAX4376H
0.2
TOTAL OUTPUT ERROR
vs. TEMPERATURE
-1.0
-2.0
10
GAIN ACCURACY
vs. TEMPERATURE
0
-0.5
5
COMMON-MODE VOLTAGE (V)
MAX4376H
0.5
0
SUPPLY VOLTAGE (V)
1.5
1.0
MAX4376H
-0.6
0.8
30
MAX4376/7/8 toc06
2.0
-0.4
TOTAL OUTPUT ERROR
vs. COMMON-MODE VOLTAGE
-0.8
0
0.0
-0.2
-1.0
125
1.0
-3
-4
0.2
SUPPLY VOLTAGE (V)
TOTAL OUTPUT ERROR
vs. SUPPLY VOLTAGE (VSENSE = 6.25mV)
-1
0.4
TEMPERATURE (°C)
SUPPLY VOLTAGE (V)
6
MAX4376T
MAX4376F
MAX4376/7/8 toc05
10
0.6
-0.8
TOTAL OUTPUT ERROR (%)
5
TOTAL OUTPUT ERROR (%)
0
0
0.8
0.6
MAX4376F
0.4
MAX4376T
30
0.2
0
-0.2
MAX4376H
-0.4
-0.6
-0.8
-50
-25
0
25
50
75
TEMPERATURE (°C)
100
MAX4376/7/8 toc03
1.0
TOTAL OUTPUT ERROR
vs. SUPPLY VOLTAGE (VSENSE = 100mV)
1.0
0.2
0.55
0.50
MAX4376H
TOTAL OUTPUT ERROR (%)
0.85
1.2
1.2
MAX4376/7/8 toc02
MAX4376F
GAIN ACCURACY (%)
SUPPLY CURRENT (mA)
0.90
SUPPLY CURRENT (mA)
MAX4376H
0.95
1.4
MAX4376/7/8 toc01
1.00
SUPPLY CURRENT (PER AMPLIFIER)
vs. TEMPERATURE
MAX4376/7/8 toc07
SUPPLY CURRENT (PER AMPLIFIER)
vs. SUPPLY VOLTAGE
125
-1.0
-50
-25
0
25
50
75
100 125 150
TEMPERATURE (°C)
25
30
MAX4376/MAX4377/
MAX4378
Single/Dual/Quad, High-Side
Current-Sense Amplifiers with Internal Gain
Typical Operating Characteristics (continued)
(VCC = VRS+ = 12V, VSENSE = 100mV, TA = +25°C.)
MAX4376/7/8 toc08
5
3
CL = 15pF
RL =1kΩ
IN
5mV/div
100mV
95mV
2
MAX4376H
MAX4376F
1
0
-1
-2
2.0V
OUT
50mV/div
1.9V
MAX4376T
0
50
100
VSENSE (mV)
150
2µs/div
200
MAX4376 toc10
MAX4376F
SMALL-SIGNAL TRANSIENT RESPONSE
(VSENSE = 95mV TO 100mV)
CL = 15pF
RL = 2.5kΩ
IN
5mV/div
MAX4376H
SMALL-SIGNAL TRANSIENT RESPONSE
(VSENSE = 95mV to 100mV)
100mV
95mV
IN
5mV/div
MAX4376 toc11
TOTAL OUTPUT ERROR (%)
4
MAX4376 toc09
MAX4376T
SMALL-SIGNAL TRANSIENT RESPONSE
(VSENSE = 95mV TO 100mV)
TOTAL OUTPUT ERROR
vs. FULL-SCALE SENSE VOLTAGE
CL = 15pF
RL = 5kΩ
100mV
95mV
10V
5V
OUT
200mV/div
OUT
100mV/div
9.5V
4.75V
MAX4376T
LARGE-SIGNAL TRANSIENT RESPONSE
(VSENSE = 6mV to 100mV)
MAX4376F
LARGE-SIGNAL TRANSIENT RESPONSE
(VSENSE = 6mV to 100mV)
CL = 15pF
RL = 1kΩ
IN
45mV/div
CL = 15pF
RL = 2.5kΩ
100mV
6mV
MAX4376 toc13
2µs/div
MAX4376 toc12
2µs/div
IN
45mV/div
100mV
6mV
2V
5V
OUT
500mV/div
OUT
2V/div
0.3V
0.120V
2µs/div
2µs/div
MAX4376/MAX4377/
MAX4378
Single/Dual/Quad, High-Side
Current-Sense Amplifiers with Internal Gain
Typical Operating Characteristics (continued)
(VCC = VRS+ = 12V, VSENSE = 100mV, TA = +25°C.)
IN
45mV/div
SMALL-SIGNAL GAIN
vs. FREQUENCY
45
MAX4376H
40
100mV
6mV
10V
OUT
3V/div
35
30
MAX4376/7/8 toc15
CL = 15pF
RL = 5kΩ
GAIN (dB)
MAX4376 toc14
MAX4376H
LARGE-SIGNAL TRANSIENT RESPONSE
(VSENSE = 6mV to 100mV)
MAX4376F
25
MAX4376T
20
15
10
0.6V
5
0
1.E+04
2µs/div
1.E+05
1.E+06
1.E+07
FREQUENCY (Hz)
OVERDRIVE RESPONSE
AV = +20V/V
MAX4376/7/8 toc16
OUTPUT LOW
vs. TEMPERATURE
350
350mV
VOH
OUT
2V/div
OUTPUT LOW (mV)
IN
200mV/div
MAX4376/7/8 toc17
400
750mV
300
250
MAX4376T
200
MAX4376F
150
100
7V
TIME (500ns)
MAX4376H
50
0
-50
-25
0
25
50
75
100
125
TEMPERATURE (°C)
www.maximintegrated.com
Maxim Integrated │ 7
MAX4376/MAX4377/
MAX4378
Single/Dual/Quad, High-Side
Current-Sense Amplifiers with Internal Gain
Pin Configurations
TOP VIEW
OUT 1
GND 2
+
5
8
RS+
7
N.C.
3
6
RS-
RS1+
OUT 4
5
N.C.
GND
N.C. 2
MAX4376
GND
VCC 3
+
VCC 1
RS-
4
RS+
MAX4376
OUT1
+
8
VCC
7
OUT2
RS1- 2
3
6
RS2-
RS1+
4
5
RS2+
RS1- 2
SO
SOT23
1
MAX4377
MAX/SO
OUT1 1
+
14 OUT4
MAX4378
13 RS4-
3
12 RS4+
VCC 4
11 GND
RS2+ 5
10 RS3+
RS2- 6
9
RS3-
7
8
OUT3
OUT2
SO/TSSOP
Pin Descriptions
PIN
MAX4376
MAX4376
MAX4377
MAX4378
SOT23-5
SO-8
ΜMAX-8/
SO-8
SO-14/
TSSOP-14
1
4
1, 7
2
3
4
3
1
8
4
8
3, 5
5
6
2, 6
2, 6, 9, 13
RS-, RS_-
—
2, 5, 7
—
—
N.C.
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NAME
FUNCTION
1, 7, 8, 14
OUT, OUT_
Output Voltage. VOUT_ is proportional to the magnitude of
the sense voltage (VRS+ - VRS-). VOUT_ is approximately
zero when VRS - > VRS - + (no phase reversal).
11
GND
Ground
4
VCC
Supply Voltage
3, 5, 10, 12
RS+, RS_+
Power connection to the external sense resistor
Load-side connection to the external sense resistor
No Connection. Not internally connected.
Maxim Integrated │ 8
MAX4376/MAX4377/
MAX4378
Single/Dual/Quad, High-Side
Current-Sense Amplifiers with Internal Gain
Detailed Description
The MAX4376/MAX4377/MAX4378 high-side current-sense amplifiers feature a 0 to +28V input common-mode range that is independent of supply voltage.
This feature allows the monitoring of current out of a
battery in deep discharge and also enables high-side current sensing at voltages greater than the supply voltage
(VCC).
The MAX4376/MAX4377/MAX4378 operate as follows:
current from the source flows through RSENSE to the
load (Figure 1). Since the internal sense amplifier’s
inverting input has high impedance, negligible current
flows through RG2 (neglecting the input bias current).
Therefore, the sense amplifier’s inverting-input voltage
equals VSOURCE - (ILOAD)(RSENSE).
The amplifier’s open-loop gain forces its noninverting
input to the same voltage as the inverting input.
Therefore, the drop across RG1 equals (ILOAD)
(RSENSE). Since IRG1 flows through RG1, IRG1 =
(ILOAD)(RSENSE)/RG1. The internal current mirror multiplies IRG1 by a current gain factor, β, to give IRGD = β x
IRG1. Solving IRGD = β x (ILOAD)(RSENSE)/RG1.
Therefore:
VOUT = b x (RGD/RG1)(RSENSE x ILOAD) x amp gain
Applications Information
Recommended Component Values
The MAX4376/MAX4377/MAX4378 sense a wide variety
of currents with different sense resistor values. Table 1
lists common resistor values for typical operation of the
MAX4376/MAX4377/MAX4378.
Choosing RSENSE
To measure lower currents more accurately, use a high
value for RSENSE. The high value develops a higher
sense voltage that reduces offset voltage errors of the
internal op amp.
In applications monitoring very high currents, RSENSE
must be able to dissipate the I2R losses. If the resistor’s
rated power dissipation is exceeded, its value may drift or
it may fail altogether, causing a differential voltage across
the terminals in excess of the absolute maximum ratings.
If ISENSE has a large high-frequency component, minimize the inductance of RSENSE. Wire-wound resistors
have the highest inductance, metal-film resistors are
somewhat better, and low-inductance metal-film resistors
are best suited for these applications.
Bidirectional Current-Sense Amplifier
where GAIN = 20 for MAX437_T.
Systems such as laptop computers and other devices
that have internal charge circuitry require a precise bidirectional current-sense amplifier to monitor accurately the
battery’s current regardless of polarity. Figure 2 shows the
MAX4377 used as a bidirectional current monitor. This is
useful for implementing either smart battery packs or fuel
gauges.
GAIN = 50 for MAX437_F.
Current Source Circuit
where amp gain is 2, 5, or 10.
The part’s gain equals (β x RGD / RG1) x amp gain.
Therefore:
VOUT = (GAIN)(RSENSE)(ILOAD)
GAIN = 100 for MAX437_H.
Set the full-scale output range by selecting RSENSE and
the appropriate gain version of the MAX4376/ MAX4377/
MAX4378.
www.maximintegrated.com
Figure 3 shows a block diagram using the MAX4376 with
a switching regulator to make a current source.
Maxim Integrated │ 9
MAX4376/MAX4377/
MAX4378
Single/Dual/Quad, High-Side
Current-Sense Amplifiers with Internal Gain
Table 1. Recommended Component Values
FULL-SCALE LOAD
CURRENT, ILOAD (A)
CURRENT-SENSE
RESISTOR, RSENSE (mΩ)
GAIN (+V/V)
FULL-SCALE OUTPUT VOLTAGE
(FULL-SCALE VSENSE = 100mV),
VOUT (V)
0.1
1000
20
2.0
1
100
5
20
10
10
RSENSE
VSOURCE
0 TO +28V
RS+
ILOAD
RG1
VCC
RG2
5.0
10.0
20
2.0
50
5.0
100
10.0
20
2.0
50
5.0
100
10.0
20
2.0
50
5.0
100
10.0
BATTERY
RS-
IRG1
+3V TO +28V
TO LOAD BATTERY
50
100
RSENSE
+3V TO +28V
SYSTEM
AND
CHARGER
VCC
MAX4376
RS1+
OUT1
RS1A1
MAX4377
RS2CURRENT
MIRROR
OUT
IRGD
VOUT
AV = 2, 5,
OR 10
OUT
OUT2
RS2+
RGD
GND
Figure 1. Functional Diagram
www.maximintegrated.com
Figure 2. Bidirectional Current Monitor
Maxim Integrated │ 10
MAX4376/MAX4377/
MAX4378
VIN
MAX1745
LOW-COST
SWITCHING
REGULATOR
Single/Dual/Quad, High-Side
Current-Sense Amplifiers with Internal Gain
Chip Information
ILOAD
VSENSE
0 TO +18V
PROCESS: BiCMOS
RSENSE
+3V TO +28V
0.1µF
RS+
RS-
VCC
MAX4376
LOAD/
BATTERY
OUT
GND
Figure 3. Current Source
Ordering Information
PART
GAIN
(+V/V)
TEMP
ANGE
PINTOP
PACKAGE MARK
MAX4376TAUK+T
20
-40°C to +125°C
5 SOT23 ADOG
MAX4376TAUK/V+T
20
-40°C to +125°C
5 SOT23 AMGC
MAX4376FAUK+T
50
-40°C to +125°C
5 SOT23 ADOH
MAX4376FAUK/V+T
50
-40°C to +125°C
5 SOT23
AMJI
MAX4376HAUK+T
100
-40°C to +125°C
5 SOT23
ADOI
MAX4376HAUK/V+T
100
-40°C to +125°C
5 SOT23 AFGO
MAX4376TASA+
20
-40°C to +125°C
8 SO
—
MAX4376FASA+
50
-40°C to +125°C
8 SO
—
MAX4376HASA+
100
-40°C to +125°C
8 SO
—
MAX4377TAUA+
20
-40°C to +125°C
8 µMAX
—
MAX4377FAUA+
50
-40°C to +125°C
8 µMAX
—
MAX4377HAUA+
100
-40°C to +125°C
8 µMAX
—
MAX4377TASA+
20
-40°C to +125°C
8 SO
—
MAX4377FASA+
50
-40°C to +125°C
8 SO
—
MAX4377HASA+
100
-40°C to +125°C
8 SO
—
MAX4378TAUD+
20
-40°C to +125°C
14 TSSOP
—
MAX4378FAUD+
50
-40°C to +125°C
14 TSSOP
—
MAX4378HAUD+
100
-40°C to +125°C
14 TSSOP
—
MAX4378TASD+
20
-40°C to +125°C
14 SO
—
MAX4378FASD+
50
-40°C to +125°C
14 SO
—
MAX4378HASD+
100
-40°C to +125°C
14 SO
—
+Denotes a lead (Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
T = Tape and reel.
www.maximintegrated.com
Maxim Integrated │ 11
MAX4376/MAX4377/
MAX4378
Single/Dual/Quad, High-Side
Current-Sense Amplifiers with Internal Gain
Package Information
For the latest package outline information and land patterns (footprints), go to www.maximintegrated.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.
PACKAGE TYPE
PACKAGE CODE
OUTLINE NO.
LAND
PATTERN NO.
8 SOIC
S8+2
21-0041
90-0096
8 µMAX
U8+1
21-0036
90-0092
14 SOIC
S14+1
21-0041
90-0096
14 TSSOP
U14+1
21-0066
90-0117
www.maximintegrated.com
Maxim Integrated │ 12
MAX4376/MAX4377/
MAX4378
Single/Dual/Quad, High-Side
Current-Sense Amplifiers with Internal Gain
Revision History
REVISION
NUMBER
REVISION
DATE
PAGES
CHANGED
4
4/09
Added automotive part number and lead-free designations
5
6/10
Clarified 0V to 2V is not a high-accuracy range for the device, added soldering
temperature and Package Information section
6
2/11
Specified VRS+ value
7
10/12
Added MAX4376HASA+ and MAX4376TAUK/V+T to Ordering Information
1
8
4/18
Updated Ordering Information table and Features section
1
9
7/18
Updated Features section, Pin Configuration diagram, and Ordering Information table
1, 9
10
7/18
Updated Package Information table
11
DESCRIPTION
1, 9
1, 2, 10
2, 3
11
8/18
Updated Package Information table
11
12
12/18
Updated package code
2
13
11/19
Updated Package Information
2
For pricing, delivery, and ordering information, please visit Maxim Integrated’s online storefront at https://www.maximintegrated.com/en/storefront/storefront.html.
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits)
shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
© 2019 Maxim Integrated Products, Inc. │ 13
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