Datasheet

MAX4376/MAX4377/MAX4378
Single/Dual/Quad, High-Side Current-Sense
Amplifiers with Internal Gain
2
Maxim Integrated
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
RS+
= 0 to 28V, V
SENSE
= (V
RS+
- V
RS-
) = 0V, V
CC
= +3.0V to +28V, R
L
= ∞, 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 (V
CC
+ 0.3V)
Differential Input Voltage (V
RS+
- V
RS-
).................................±8V
Output Short Circuit to V
CC
........................................Continuous
Output Short Circuit to GND .....................................................1s
Current into Any Pin..........................................................±20mA
Continuous Power Dissipation (T
A
= +70°C)
5-Pin SOT23 (derate 7.1mW/°C above +70°C)............571mW
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
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Operating Voltage Range V
CC
Guaranteed by PSR test 3 28 V
Common-Mode Input Range V
CM
Guaranteed by total OUT voltage error test 0 28 V
Common-Mode Rejection CMR 2V ≤ V
RS+
≤ 28V, V
SENSE
= 100mV 90 dB
Supply Current per Amplifier I
CC
V
SENSE
= 5mV, V
RS+
> 2.0V, V
CC
= 12V 1 2.2 mA
Leakage Current I
RS+
, I
RS-
V
CC
= 0V, V
RS+
= 28V 8 µA
V
RS+
> 2.0V 0 60
I
RS
+
V
RS+
≤ 2.0V -400 60
V
RS+
> 2.0V 0 120
Input Bias Current
I
RS-
V
RS+
≤ 2.0V -800 120
µA
Full-Scale Sense Voltage V
SENSE
150 mV
V
SENSE
= 100mV,
V
CC
= 12V, V
RS+
= 12V
±6.75
V
SENSE
= 100mV,
V
CC
= 12V, T
A
= +25°C,
V
RS+
= 12V
±0.5 ±3.25
V
SENSE
= 100mV,
V
CC
= 28V, V
RS+
= 28V
±11
V
SENSE
= 100mV,
V
CC
= 28V, V
RS+
= 28V,
T
A
= +25°C
±0.5 ±5
V
SENSE
= 100mV,
V
CC
= 12V, V
RS+
= 0.1V
±9 ±32
Total OU T V ol tag e E r r or ( N ote 2) I
OUT
≤ 2mA
V
SENSE
= 6.25mV,
V
CC
= 12V, V
RS+
= 12V
(Note 3)
±7
%
OUT High Voltage (Note 4) ( V
C C
- V
OUT
) V
CC
= 3V, I
OUT
= 2mA, V
RS+
= 28V 0.9 1.2 V
OUT Low Voltage V
OL
I
OUT
= 200µA, V
CC
= V
RS+
= 12V,
V
SENSE
= 0V, T
A
= +25°C
25 40 mV