MAX4372HEUK+T Maxim Integrated Products, MAX4372HEUK+T Datasheet - Page 7

IC AMP CURRENT SENSE SOT23-5

MAX4372HEUK+T

Manufacturer Part Number
MAX4372HEUK+T
Description
IC AMP CURRENT SENSE SOT23-5
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX4372HEUK+T

Amplifier Type
Current Sense
Number Of Circuits
1
-3db Bandwidth
110kHz
Current - Input Bias
2µA
Voltage - Input Offset
300µV
Current - Supply
30µA
Voltage - Supply, Single/dual (±)
2.7 V ~ 28 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-5, SC-74A, SOT-25
Mounting Style
SMD/SMT
Supply Voltage (max)
28 V
Supply Voltage (min)
2.7 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Output Type
-
Current - Output / Channel
-
Slew Rate
-
Gain Bandwidth Product
-
Lead Free Status / Rohs Status
 Details
Other names
MAX4372HEUK+T
MAX4372HEUK+TTR
Table 1. Recommended Component Values
If the cost of R
critical, use the alternative solution shown in Figure 2.
This solution uses copper PC board traces to create a
sense resistor. The resistivity of a 0.1-inch-wide trace of
2-ounce copper is about 30mΩ/ft. The resistance tem-
perature coefficient of copper is fairly high (approxi-
mately 0.4%/°C), so systems that experience a wide
temperature variance must compensate for this effect.
In addition, self-heating will introduce a nonlinearity
error. Do not exceed the maximum power dissipation of
the copper trace.
For example, the MAX4372T (with a maximum load cur-
rent of 10A and an R
V
R
inch-wide copper trace.
For the latest application details on UCSP construction,
dimensions, tape carrier information, printed circuit
board techniques, bump-pad layout, and recommend-
ed reflow temperature profile, as well as the latest infor-
mation on reliability testing results, go to the Maxim's
website at www.maxim-ic.com/ucsp to find the
Application Note: UCSP—A Wafer-Level Chip-Scale
Package.
SENSE
SENSE
Low-Cost, UCSP/SOT23, Micropower, High-Side
FULL-SCALE LOAD
UCSP Applications Information
Current-Sense Amplifier with Voltage Output
, in this case, requires about 2 inches of 0.1-
of 50mV that yields a maximum V
CURRENT,
I
Using a PC Board Trace as R
LOAD
0.1
10
1
5
SENSE
(A)
_______________________________________________________________________________________
SENSE
is an issue and accuracy is not
of 5mΩ) creates a full-scale
CURRENT-SENSE
R
RESISTOR,
SENSE
1000
100
20
10
OUT
(mΩ)
SENSE
of 1V.
Figure 2. Connections Showing Use of PC Board
0.3in COPPER
INPUT
GAIN
(V/V)
100
100
100
100
20
50
20
50
20
50
20
50
RS+
RS-
0.1in COPPER
MAX4372T/F/H
R
V
SENSE
SENSE
VOLTAGE (FULL-SCALE
FULL-SCALE OUTPUT
V
GND
OUT
CC
V
SENSE
V
LOAD/BATTERY
0.3in COPPER
OUT
10.0
10.0
10.0
10.0
2.0
5.0
2.0
5.0
2.0
5.0
2.0
5.0
2.7V TO 28V
= 100mV),
(V)
7

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