MAX4372T/F/H
Low-Cost, UCSP/SOT23, Micropower, High-Side
Current-Sense Amplifier with Voltage Output
Absolute Maximum Ratings
V
CC
, RS+, RS- to GND .........................................-0.3V to +30V
OUT to GND ..........................................................-0.3V to +15V
Differential Input Voltage (V
RS+
- V
RS-
) .............................±0.3V
Current into Any Pin .........................................................±10mA
Continuous Power Dissipation (T
A
= +70°C)
5-Pin SOT23 (derate 3.9mW/°C above +70°C) .......312.6mW
8-Pin SO (derate 7.4mW/°C above +70°C)..............588.2mW
3 x 2 UCSP (derate 3.4mW/°C above +70°C) .........273.2mW
Operating Temperature Range ........................... -40°C to +85°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.
Electrical Characteristics
(V
RS+
= 0 to 28V, V
CC
= 2.7V to 28V, V
SENSE
= 0V, R
LOAD
= 1MΩ, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are
at T
A
= +25°C.) (Note 1)
PARAMETER
Operating Voltage Range
(Note 2)
Common-Mode Input Range
(Note 3)
Common-Mode Rejection
Supply Current
Leakage Current
SYMBOL
V
CC
V
CMR
CMR
I
CC
I
RS+
, I
RS-
I
RS+
Input Bias Current
I
RS-
Full-Scale Sense Voltage
(Note 4)
V
SENSE
V
RS+
> 2V
V
RS+
> 2V, V
SENSE
= 5mV
V
CC
= 0V, V
RS+
= 28V
V
RS+
> 2V
V
RS+
≤ 2V
V
RS+
> 2V
V
RS+
≤ 2V
Gain = 20V/V or 50V/V
Gain = 100V/V
T
A
= +25°C
V
CC
= V
RS+
= 12V
T
A
= T
MIN
to T
MAX
V
CC
= V
RS+
= 12V
MAX4372_ESA
MAX4372_EUK, _EBT
MAX4372_ESA
MAX4372_EUK, _EBT
±0.18
0
-25
0
-50
150
100
0.3
0.3
±0.8
±1.3
±1.1
±1.9
±3
±6
±0.15
±1
±0.15
±7
±28
%
mV
CONDITIONS
MIN
2.7
0
85
30
0.05
60
1.2
1
+2
2
+2
mV
μA
TYP
MAX
28
28
UNITS
V
V
dB
μA
μA
Input Offset Voltage
(Note 5)
Full-Scale Accuracy
(Note 5)
V
OS
V
SENSE
= 100mV, V
CC
= 12V,
V
RS+
= 12V, T
A
= +25°C (Note 7)
V
SENSE
= 100mV, V
CC
= 12V,
V
RS+
= 12V (Note 7)
Total OUT Voltage Error
(Note 6)
V
SENSE
= 100mV, V
CC
= 28V,
V
RS+
= 28V (Note 7)
V
SENSE
= 100mV, V
CC
= 12V,
V
RS+
= 0.1V (Note 7)
V
SENSE
= 6.25mV, V
CC
= 12V,
V
RS+
= 12V (Note 8)
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