Datasheet

MAX4373/MAX4374/MAX4375
Low-Cost, Micropower, High-Side Current-Sense
Amplifier + Comparator + Reference ICs
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= +2.7V to +28V, V
RS+
= 0 to +28V, V
SENSE
= 0V, V
RESET
= 0V, R
LOAD
= 1MΩ, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Typical values are at T
A
= +25°C.) (Note 1)
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.
V
CC
, RS+, RS- to GND ...........................................-0.3V to +30V
OUT to GND ................................................-0.3V to the lesser of
(V
CC
+ 0.3V) or +15V
CIN1, CIN2, RESET to GND ........................-0.3V to the lesser of
(V
CC
+ 0.3V) or +12V
Differential Input Voltage (V
RS
+ - V
RS
-)..............................±0.3V
COUT1, COUT2 to GND........................................-0.3V to +6.0V
Current into Any Pin..........................................................±10mA
Continuous Power Dissipation (T
A
= +70°C)
8-Pin µMAX (derate 4.1mW/°C above +70°C) .............330mW
8-Pin SO (derate 5.9mW/°C above +70°C)..................471mW
10-Pin µMAX (derate 5.6mW/°C above +70°C) ...........444mW
14-Pin SO (derate 8.3mW/°C above +70°C)................667mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
mV
PARAMETER SYMBOL MIN TYP MAX UNITS
-25 2.0
Input Bias Current
I
RS+
0 2.5
µA
Leakage Current I
RS+,
I
RS-
±0.015 ±0.5 µA
Supply Current I
CC
50 100 µA
I
RS-
04
-50 4
Full-Scale Sense Voltage
(Note 4)
V
SENSE
150 170
mV
100 120
Common-Mode Input Range
(Note 3)
Operating Voltage Range
(Note 2)
V
CC
2.7 28 V
V
CMR
028V
Common-Mode Rejection CMR 85 dB
OUT Voltage High
V
CC -
V
OH
0.25 V
CONDITIONS
V
RS+
≤ 2V
V
RS+
> 2V
V
CC
= 0V, V
RS+
= 28V
V
RS+
> 2V, V
SENSE
= 5mV
V
RS+
> 2V
V
RS+
≤ 2V
V
CC
= 2.7V, I
OUT
= -500µA, V
RS+
= 12V
Gain = +20V/V, +50V/V, V
RS+
= 12V
Gain = +100V/V, V
RS+
= 12V
V
RS+
> 2V
Input Offset Voltage V
OS
0.1 1
V
CC
= V
RS+
= 12V
(Note 11)
T
A
= +25°C
T
A
= T
MIN
to T
MAX
2
8.5 65I
OUT
= 100µA
I
OUT
= 10µA
OUT Voltage Low V
OUT
2.5
mV
V
CC
= 2.7V,
V
RS+
= 12V
±0.30 ±2T
A
= +25°C
V
SENSE
=
100mV
(Note 6)
±3
V
CC
= 12V,
V
RS+
= 12V
T
A
= T
MIN
to T
MAX
±0.35 ±2
V
CC
= 28V,
V
RS+
= 28V
T
A
= +25°C
±3T
A
= T
MIN
to T
MAX
±5.0V
CC
= 12V, V
RS+
= 0.1V
V
SENSE
= 6.25mV, V
CC
= 12V,
V
RS+
= 12V (Note 7)
Total OUT Voltage Error
(Note 5)
V
OUT
±5.0
%