MAX4172 Ver la hoja de datos (PDF) - Maxim Integrated
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MAX4172 Datasheet PDF : 9 Pages
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MAX4172
Low-Cost, Precision, High-Side
Current-Sense Amplifier
Absolute Maximum Ratings
V+, RS+, RS-, PG..................................................-0.3V to +36V
OUT..............................................................-0.3V to (V+ + 0.3V)
Differential Input Voltage, VRS+ - VRS-...........................±700mV
Current into Any Pin..........................................................±50mA
Continuous Power Dissipation (TA = +70°C)
SO (derate 5.88mW/°C above +70°C).........................471mW
μMAX (derate 4.10mW/°C above +70°C)....................330mW
Operating Temperature Range
MAX4172E_A.................................................. -40°C to +85°C
MAX4172G_A................................................ -40°C to +105°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+ = +3V to +32V; VRS+, VRS- = 0 to 32V; TA = TMIN to TMAX; unless otherwise noted. Typical values are at V+ = +12V,
VRS+ = 12V, TA = +25°C.)
PARAMETER
Operating Voltage Range
Input Voltage Range
Supply Current
Input Offset Voltage
Positive Input Bias Current
Negative Input Bias
Current
Maximum VSENSE Voltage
Low-Level Current Error
Output Current Error
OUT Power-Supply
Rejection Ratio
SYMBOL
V+
VRS-
IV+
VOS
IRS+
IRS-
ΔIOUT/ΔV+
CONDITIONS
IOUT = 0mA
V+ = 12V, VRS+ = 12V
VRS+ ≤ 2.0V
VRS+ > 2.0V, IOUT = 0mA
VRS+ ≤ 2.0V, IOUT = 0mA
VRS+ > 2.0V
VRS+ ≤ 2.0V
MAX4172ESA
MAX4172EUA
VSENSE = 6.25mV, V+ = 12V,
VRS+ = 12V (Note 1)
VSENSE = 100mV, V+ = 12V,
VRS+ = 12V
MAX4172ESA
MAX4172EUA
MAX4172ESA,
TA = -40°C to 0°C
MAX4172EUA,
TA = -40°C to 0°C
MAX4172ESA,
TA = 0°C to +105°C
MAX4172EUA,
TA = 0°C to +105°C
3V ≤ V+ ≤ 32V, VRS+ > 2.0V
OUT Common-Mode
Rejection Ratio
ΔIOUT/ΔVRS+ 2.0V < VRS+ < 32V
MIN
3
0
0
-325
0
-650
150
TYP MAX UNITS
32
V
0
32
V
0.8
1.6
mA
±0.1 ±0.75
±0.2 ±1.6 mV
4
27 42.5
µA
+42.5
50
85
µA
85
175
mV
±8.0
±15
µA
±20
±50
µA
±10
±15
0.2
μA/V
0.03
μA/V
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