MAX4172 データシートの表示（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
Electrical Characteristics (continued)
(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
SYMBOL
CONDITIONS
MIN
Maximum Output Voltage
(OUT)
IOUT ≤ 1.5mA
Bandwidth
Maximum Output Current
Transconductance
V+ Threshold for PG
Output Low (Note 2)
IOUT
Gm
VSENSE = 100mV
VSENSE = 6.25mV (Note 1)
1.5
Gm = IOUT/(VRS+ - VRS-),
TA = 0°C to +105°C 9.8
VSENSE = 100mV, VRS+ > 2.0V TA = -40°C to 0°C 9.7
V+ rising
V+ falling
PG Output Low Voltage
Leakage Current into PG
Power-Off Input Leakage
Current (RS+, RS-)
VOL
ISINK = 1.2mA, V+ = 2.9V, TA = +25°C
V+ = 2.5V, TA = +25°C
V+ = 0V, VRS+ = VRS- = 32V
OUT Rise Time
OUT Fall Time
OUT Settling Time to 1%
VSENSE = 0 to 100mV, 10% to 90%
VSENSE = 100mV to 0mV, 90% to 10%
VSENSE = 5mV to 100mV
Rising
Falling
OUT Output Resistance
VSENSE = 150mV
Note 1: 6.25mV = 1/16 of typical full-scale sense voltage (C/16).
Note 2: Valid operation of the MAX4172 is guaranteed by design when PG is low.
TYP MAX UNITS
V+ - 1.2 V
800
kHz
200
1.75
mA
10 10.2
mA/V
10 10.3
2.77
V
2.67
0.4
V
1
µA
0.1
1
µA
400
ns
800
ns
1.3
µs
6
20
MΩ
Typical Operating Characteristics
(V+ = +12V, VRS+ = 12V, ROUT = 1kΩ, TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
1050
TA = +105°C
950
850
TA = +85°C
750
650
550
450
0
TA = +25°C
TA = -40°C
IOUT = 0mA
10
20
30
40
V+ (V)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
OUTPUT ERROR
vs. SUPPLY VOLTAGE
VSENSE = 100mV
TA = -40°C
TA = +105°C
TA = +85°C
TA = +25°C
10
20
30
40
V+ (V)
8
6
4
2
0
-2
-4
-6
0
C/16 LOAD OUTPUT ERROR
vs. SUPPLY VOLTAGE
VSENSE = 6.25mV
TA = +25°C
TA = -40°C
TA = +85°C
TA = +105°C
10
20
V+ (V)
IOUT = 0mA
30
40
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