MAX4172 Maxim, MAX4172 Datasheet - Page 3

• Manufacturer Part Number: MAX4172
• Description: The MAX4172 is a low-cost, precision, high-side current-sense amplifier for portable PCs, telephones, and other systems where battery/DC power-line monitoring is critical
• Manufacturer: Maxim

ELECTRICAL CHARACTERISTICS (continued)
(V+ = +3V to +32V; V
12V, T
(V+ = +12V, V
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.
__________________________________________Typical Operating Characteristics
1000
Maximum Output Voltage
(OUT)
Bandwidth
Maximum Output Current
Transconductance
V+ Threshold for PG Output
Low (Note 2)
PG Output Low Voltage
Leakage Current into PG
Power-Off Input Leakage
Current (RS+, RS-)
OUT Rise Time
OUT Fall Time
OUT Settling Time to 1%
OUT Output Resistance
950
900
850
800
750
700
650
600
550
500
A
0
PARAMETER
= +25°C.)
vs. SUPPLY VOLTAGE
10
RS+
SUPPLY CURRENT
T
= 12V, R
A
= +85°C
V+ (V)
_______________________________________________________________________________________
RS+
20
T
T
A
A
= -40°C
= +25°C
, V
OUT
RS-
I
OUT
30
= 1kΩ, T
= 0mA
= 0V to 32V; T
SYMBOL
I
OUT
G
V
OL
m
40
A
= +25°C, unless otherwise noted.)
-0.1
-0.2
-0.3
-0.4
I
V
V
G
V
V+ rising
V+ falling
I
V+ = 2.5V, T
V+ = 0V, V
V
V
V
V
-0.5
0.3
0.5
0.4
0.2
0.1
OUT
SINK
A
Low-Cost, Precision, High-Side
SENSE
SENSE
SENSE
SENSE
SENSE
SENSE
SENSE
m
0
= T
= I
0
≤ 1.5mA
= 1.2mA, V+ = 2.9V, T
OUT
MIN
= 100mV, V
= 100mV
= 6.25mV (Note 1)
= 0mV to 100mV, 10% to 90%
= 100mV to 0mV, 90% to 10%
= 5mV to 100mV
= 150mV
T
A
/ (V
to T
RS+
= +25°C
A
10
vs. SUPPLY VOLTAGE
RS+
= +25°C
T
MAX
OUTPUT ERROR
= V
A
= -40°C
- V
CONDITIONS
RS+
; unless otherwise noted. Typical values are at V+ = +12V, V
RS-
RS-
V+ (V)
Current-Sense Amplifier
20
> 2.0V
),
= 32V
T
A
= +85°C
V
SENSE
A
30
= 100mV
= +25°C
T
T
Rising
Falling
A
A
= 0°C to +85°C
= -40°C to 0°C
40
-0.5
-1.0
-1.5
-2.0
-2.5
-3.0
1.5
1.0
0.5
0
0
MIN
1.5
9.8
9.7
C/16 LOAD OUTPUT ERROR
vs. SUPPLY VOLTAGE
10
TYP
1.75
2.77
2.67
800
200
400
800
0.1
1.3
10
10
20
6
V+ (V)
20
V+ - 1.2
V
SENSE
MAX
10.2
10.3
0.4
T
T
T
1
1
A
A
A
= -40°C
= +85°C
= +25°C
= 6.25mV
30
UNITS
mA/V
RS+
kHz
mA
MΩ
µA
µA
ns
ns
µs
V
V
V
40
=
3