µMAX is a registered trademark of Maxim Integrated Products, Inc.
General Description
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:
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 tempera-
ture 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.
Features
●Low-Cost, Single/Dual/Quad, High-Side Current-
Sense 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
Applications
●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
Click here for production status of specic part numbers.
MAX4376/MAX4377/
MAX4378
Single/Dual/Quad, High-Side
Current-Sense Ampliers with Internal Gain
19-1781; Rev 12; 12/18
MAX4376T/F/H
RSENSE
0 TO +28V ILOAD
VSENSE
VCC
OUT
GND
RS+
+3V TO +28V RS-
LOAD/
BATTERY
A/D
CONVERTER
0.1µF
Typical Operating Circuit
EVALUATION KIT AVAILABLE
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
5 SOT23
PACKAGE CODE U5+2, U5+2A
Outline Number 21-0057
Land Pattern Number 90-0174
Thermal Resistance, Single-Layer Board:
Junction to Ambient (θJA) 324.30°C/W
Junction to Case (θJC) 82°C/W
Thermal Resistance, Multi-Layer Board:
Junction to Ambient (θJA) 255.90°C/W
Junction to Case (θJC) 81°C/W
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.
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 Information
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2
MAX4376/MAX4377/
MAX4378
Single/Dual/Quad, High-Side
Current-Sense Ampliers with Internal Gain
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.
Absolute Maximum Ratings
(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 SYMBOL CONDITIONS MIN TYP MAX UNITS
Operating Voltage Range 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 dB
Supply Current per Amplifier ICC VSENSE = 5mV, VRS+ > 2.0V, VCC = 12V 1 2.2 mA
Leakage Current IRS+, IRS- VCC = 0V, VRS+ = 28V 8 mA
Input Bias Current
IRS+
VRS+ > 2.0V 0 60
mA
VRS+ ≤ 2.0V -400 60
IRS- VRS+ > 2.0V 0 120
VRS+ ≤ 2.0V -800 120
Full-Scale Sense Voltage VSENSE 150 mV
Total OUT Voltage Error (Note 2) IOUT ≤ 2mA
VSENSE = 100mV,
VCC = 12V, VRS+ = 12V ±6.75
%
VSENSE = 100mV,
VCC = 12V, TA = +25°C,
VRS+ = 12V
±0.5 ±3.25
VSENSE = 100mV,
VCC = 28V, VRS+ = 28V ±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
OUT High Voltage (Note 4) (VCC - VOUT) VCC = 3V, IOUT = 2mA, VRS+ = 28V 0.9 1.2 V
OUT Low Voltage VOL IOUT = 200µA, VCC = VRS+ = 12V,
VSENSE = 0V, TA = +25°C 25 40 mV
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3
MAX4376/MAX4377/
MAX4378
Single/Dual/Quad, High-Side
Current-Sense Ampliers with Internal Gain
Electrical Characteristics
Note 1: All devices are 100% production tested at TA = +25°C. All temperature limits are guaranteed by design.
Note 2: Total OUT Voltage Error is the sum of gain and offset errors.
Note 3: 6.25mV = 1/16 of 100mV full-scale sense voltage.
Note 4: VSENSE such that VOUT is in saturation.
(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 SYMBOL CONDITIONS MIN TYP MAX UNITS
Bandwidth BW
VCC = 12V
VRS+ = 12V
CLOAD = 15pF
VSENSE = 100mV
(gain = +20V/V) 2
MHz
VSENSE = 100mV
(gain = +50V/V) 1.7
VSENSE = 100mV
(gain = +100V/V) 1.2
VSENSE = 6.25mV (Note 3) 0.5
Slew Rate SR VSENSE = 20mV to 100mV, CLOAD = 15pF 10 V/µs
Gain AV
MAX437_T +20
V/VMAX437_F +50
MAX437_H +100
Gain Accuracy DAV
VSENSE = 10mV to
150mV, VCC = 12V,
IOUT = 2mA, gain = 20
and 50, VRS+ = 12V
TA = TMIN to TMAX ±5.5
%
TA = +25°C±0.5 ±2.5
VSENSE = 10mV to
150mV, VCC = 20V,
IOUT = 2mA, gain = 100,
VRS+ = 12V
TA = TMIN to TMAX 5.5
TA = +25°C±0.5 ±2.5
OUT Setting Time to 1% of
Final Value
VCC = 12V, VRS+ = 12V,
CLOAD = 15pF
VSENSE = 6.25mV
to 100mV 400
ns
VSENSE = 100mV
to 6.25mV 800
Maximum Capacitive Load CLOAD No sustained oscillation 1000 pF
Output Resistance ROUT VSENSE = 100mV 5 W
Power-Supply Rejection PSR VRS+ > 2V, VOUT = 1.6V, VCC = 3V to 28V 66 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
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MAX4376/MAX4377/
MAX4378
Single/Dual/Quad, High-Side
Current-Sense Ampliers with Internal Gain
Electrical Characteristics (continued)
(VCC = VRS+ = 12V, VSENSE = 100mV, TA = +25°C.)
-1.0
-0.6
-0.8
-0.2
-0.4
0.2
0
0.4
0.8
0.6
1.0
-50 0 25-25 50 75 100 125 150
TOTAL OUTPUT ERROR
vs. TEMPERATURE
MAX4376/7/8 toc07
TEMPERATURE (°C)
TOTAL OUTPUT ERROR (%)
MAX4376H
MAX4376T
MAX4376F
-2.0
-1.0
-1.5
0
-0.5
1.5
1.0
0.5
2.0
GAIN ACCURACY
vs. TEMPERATURE
MAX4376/7/8 toc06
TEMPERATURE (°C)
GAIN ACCURACY (%)
MAX4376H
MAX4376F
MAX4376T
-50 -25 0 25 50 75 100 125
-1.0
-0.4
-0.6
-0.8
-0.2
0
0.2
0.4
0.6
0.8
1.0
0 105 15 20 25 30
TOTAL OUTPUT ERROR
vs. COMMON-MODE VOLTAGE
MAX4376/7/8 toc05
COMMON-MODE VOLTAGE (V)
TOTAL OUTPUT ERROR (%)
MAX4376T
MAX4376F
MAX4376H
-1
-2
0
1
2
3
4
5
6
TOTAL OUTPUT ERROR
vs. SUPPLY VOLTAGE (VSENSE = 6.25mV)
MAX4376/7/8 toc04
TOTAL OUTPUT ERROR (%)
-4
-3
0 105 15 20 25 30
SUPPLY VOLTAGE (V)
MAX4376H
MAX4376F
MAX4376T
-1.0
-0.8
-0.6
-0.4
-0.2
0.0
0.2
0.4
0.6
0.8
1.0
1.2
0 5 10 15 20 25 30
TOTAL OUTPUT ERROR
vs. SUPPLY VOLTAGE (VSENSE = 100mV)
MAX4376/7/8 toc03
SUPPLY VOLTAGE (V)
TOTAL OUTPUT ERROR (%)
MAX4376H
MAX4376T
MAX4376F
0
0.4
0.2
0.8
0.6
1.2
1.0
1.4
-50 0 25-25 50 75 100 125
SUPPLY CURRENT (PER AMPLIFIER)
vs. TEMPERATURE
MAX4376/7/8 toc02
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
MAX4376T
MAX4376F
MAX4376H
0.50
0.65
0.60
0.55
0.70
0.75
0.80
0.85
0.90
0.95
1.00
0 105 15 20 25 30
SUPPLY CURRENT (PER AMPLIFIER)
vs. SUPPLY VOLTAGE
MAX4376/7/8 toc01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
MAX4376H
MAX4376FMAX4376F
MAX4376T
MAX4376/MAX4377/
MAX4378
Single/Dual/Quad, High-Side
Current-Sense Ampliers with Internal Gain
Typical Operating Characteristics
(VCC = VRS+ = 12V, VSENSE = 100mV, TA = +25°C.)
2µs/div
MAX4376F
LARGE-SIGNAL TRANSIENT RESPONSE
(VSENSE = 6mV to 100mV)
IN
45mV/div
OUT
2V/div
6mV
100mV
5V
0.3V
MAX4376 toc13
CL = 15pF
RL = 2.5kΩ
2µs/div
MAX4376T
LARGE-SIGNAL TRANSIENT RESPONSE
(VSENSE = 6mV to 100mV)
IN
45mV/div
OUT
500mV/div
6mV
100mV
2V
0.120V
MAX4376 toc12
CL = 15pF
RL = 1kΩ
2µs/div
MAX4376H
SMALL-SIGNAL TRANSIENT RESPONSE
(VSENSE = 95mV to 100mV)
IN
5mV/div
OUT
200mV/div
95mV
100mV
10V
9.5V
MAX4376 toc11
CL = 15pF
RL = 5kΩ
2µs/div
MAX4376F
SMALL-SIGNAL TRANSIENT RESPONSE
(VSENSE = 95mV TO 100mV)
IN
5mV/div
OUT
100mV/div
95mV
100mV
5V
4.75V
MAX4376 toc10
CL = 15pF
RL = 2.5kΩ
2µs/div
MAX4376T
SMALL-SIGNAL TRANSIENT RESPONSE
(VSENSE = 95mV TO 100mV)
IN
5mV/div
OUT
50mV/div
95mV
100mV
2.0V
1.9V
MAX4376 toc09
CL = 15pF
RL =1kΩ
-2
0
-1
2
1
4
3
5
TOTAL OUTPUT ERROR
vs. FULL-SCALE SENSE VOLTAGE
MAX4376/7/8 toc08
VSENSE (mV)
TOTAL OUTPUT ERROR (%)
0 50 100 150 200
MAX4376F MAX4376H
MAX4376T
MAX4376/MAX4377/
MAX4378
Single/Dual/Quad, High-Side
Current-Sense Ampliers with Internal Gain
Typical Operating Characteristics (continued)
(VCC = VRS+ = 12V, VSENSE = 100mV, TA = +25°C.)
0
100
50
200
150
350
300
250
400
OUTPUT LOW
vs. TEMPERATURE
MAX4376/7/8 toc17
TEMPERATURE (°C)
OUTPUT LOW (mV)
-50 -25 0 25 50 75 100 125
MAX4376H
MAX4376F
MAX4376T
TIME (500ns)
OVERDRIVE RESPONSE
AV = +20V/V
IN
200mV/div
OUT
2V/div
350mV
750mV
VOH
7V
MAX4376/7/8 toc16
0
1.E+04 1.E+071.E+061.E+05
SMALL-SIGNAL GAIN
vs. FREQUENCY
15
5
35
25
45
20
10
40
30
MAX4376/7/8 toc15
FREQUENCY (Hz)
GAIN (dB)
MAX4376T
MAX4376F
MAX4376H
2µs/div
MAX4376H
LARGE-SIGNAL TRANSIENT RESPONSE
(VSENSE = 6mV to 100mV)
IN
45mV/div
OUT
3V/div
6mV
100mV
10V
0.6V
MAX4376 toc14
CL = 15pF
RL = 5kΩ
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MAX4376/MAX4377/
MAX4378
Single/Dual/Quad, High-Side
Current-Sense Ampliers with Internal Gain
Typical Operating Characteristics (continued)
PIN
NAME FUNCTION
MAX4376 MAX4376 MAX4377 MAX4378
SOT23-5 SO-8 ΜMAX-8/
SO-8
SO-14/
TSSOP-14
1 4 1, 7 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).
2 3 4 11 GND Ground
3 1 8 4 VCC Supply Voltage
4 8 3, 5 3, 5, 10, 12 RS+, RS_+ Power connection to the external sense resistor
5 6 2, 6 2, 6, 9, 13 RS-, RS_- Load-side connection to the external sense resistor
— 2, 5, 7 — — N.C. No Connection. Not internally connected.
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MAX4376/MAX4377/
MAX4378
Single/Dual/Quad, High-Side
Current-Sense Ampliers with Internal Gain
Pin Descriptions
GND
OUT
RS+VCC
1 5 RS-
MAX4376
2
3 4
TOP VIEW
SOT23
+
RS-
N.C.OUT
1
2
8
7
RS+
N.C.N.C.
GND
VCC
3
4
6
5
MAX4376
SO
RS2-
RS2+GND
1
2
8
7
VCC
OUT2RS1-
RS1+
OUT1
3
4
6
5
MAX4377
MAX/SO
RS4+
GNDVCC
1
2
14
13
OUT4
RS4-RS1-
RS1+
OUT1
3
4
12
11
MAX4378
SO/TSSOP
5
6RS2-
OUT2
RS2+
7OUT3
10
9
RS3+
RS3-
8
+++
Pin Congurations
Detailed Description
The MAX4376/MAX4377/MAX4378 high-side cur-
rent-sense amplifiers feature a 0 to +28V input com-
mon-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 cur-
rent 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 multi-
plies 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
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)
where GAIN = 20 for MAX437_T.
GAIN = 50 for MAX437_F.
GAIN = 100 for MAX437_H.
Set the full-scale output range by selecting RSENSE and
the appropriate gain version of the MAX4376/ MAX4377/
MAX4378.
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, min-
imize 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 Amplier
Systems such as laptop computers and other devices
that have internal charge circuitry require a precise bidi-
rectional 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.
Current Source Circuit
Figure 3 shows a block diagram using the MAX4376 with
a switching regulator to make a current source.
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MAX4376/MAX4377/
MAX4378
Single/Dual/Quad, High-Side
Current-Sense Ampliers with Internal Gain
Figure 2. Bidirectional Current MonitorFigure 1. Functional Diagram
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
50 5.0
100 10.0
1 100 20 2.0
50 5.0
100 10.0
5 20 20 2.0
50 5.0
100 10.0
10 10 20 2.0
50 5.0
100 10.0
RSENSE
+3V TO +28V
VCC
BATTERY
MAX4377
SYSTEM
AND
CHARGER
OUT2
RS1+
RS1- OUT1
RS2-
RS2+
RSENSE
VSOURCE
0 TO +28V
+3V TO +28V
RGD
VOUT
IRG1
IRGD
ILOAD
RG1 RG2
RS-RS+
OUT
GND
TO LOAD BATTERY
VCC
CURRENT
MIRROR
A1
MAX4376
AV = 2, 5,
OR 10
OUT
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MAX4376/MAX4377/
MAX4378
Single/Dual/Quad, High-Side
Current-Sense Ampliers with Internal Gain
Figure 3. Current Source
PART GAIN
(+V/V)
TEMP
ANGE
PIN-
PACKAGE
TOP
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.
Ordering Information
MAX4376
RSENSE
ILOAD
0 TO +18V VSENSE
VCC
OUT
VIN
GND
RS+
+3V TO +28V
0.1µF
RS-
LOAD/
BATTERY
LOW-COST
SWITCHING
REGULATOR
MAX1745
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11
MAX4376/MAX4377/
MAX4378
Single/Dual/Quad, High-Side
Current-Sense Ampliers with Internal Gain
Chip Information
PROCESS: BiCMOS
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 Ampliers 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.
REVISION
NUMBER
REVISION
DATE DESCRIPTION PAGES
CHANGED
4 4/09 Added automotive part number and lead-free designations 1, 9
5 6/10 Claried 0V to 2V is not a high-accuracy range for the device, added soldering
temperature and Package Information section 1, 2, 10
6 2/11 Specied VRS+ value 2, 3
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 Conguration diagram, and Ordering Information table 1, 9
10 7/18 Updated Package Information table 11
11 8/18 Updated Package Information table 11
12 12/18 Updated package code 2
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 specications 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. © 2018 Maxim Integrated Products, Inc.
│
13
MAX4376/MAX4377/
MAX4378
Single/Dual/Quad, High-Side
Current-Sense Ampliers with Internal Gain
Revision History
For pricing, delivery, and ordering information, please visit Maxim Integrated’s online storefront at https://www.maximintegrated.com/en/storefront/storefront.html.