High-Side Power and
Current Monitors
ABSOLUTE MAXIMUM RATINGS
V CC , IN, CIN1, CIN2 to GND ....................................-0.3V to +6V
RS+, RS-, INHIBIT, LE, COUT1, COUT2 to GND ...-0.3V to +30V
IOUT, POUT, REF to GND ..........................-0.3V to (V CC + 0.3V)
Differential Input Voltage (V RS+ - V RS- ) .................................±5V
Maximum Current into Any Pin.......................................... ± 10mA
Output Short-Circuit Duration to V CC or GND ........................10s
Continuous Power Dissipation (T A = +70 ° C)
8-Pin μMAX (derate 4.5mW/ ° C above +70 ° C) .............362mW
16-Pin TSSOP (derate 9.4mW/ ° C above +70 ° C) ..........754mW
16-Pin Thin QFN (derate 25mW/ ° C above +70 ° C) .....2000mW
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
6-Pin TDFN (derate 24.4mW/ ° C above +70 ° C) ..........1951mW
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 CC = 5.0V, V RS+ = 25V, V SENSE = 5mV, V IN = 1.0V, V LE = 0V, R IOUT = R POUT = 1M ? , V CIN1+ = V CIN2+ = V REF , V CIN1- = V CIN2- =
GND, V INHIBIT = 0V, R COUT1 = R COUT2 = 5k ? connected to V CC , T A = -40 ° C to +85 ° C, unless otherwise noted. Typical values are at
T A = +25 ° C, unless otherwise noted.) (Note 1)
PARAMETER
Operating Voltage Range
(Note 2)
Common-Mode Input Range
(Note 3)
SYMBOL
V CC
V CMR
CONDITIONS
Measured at RS+
MIN
2.7
4
TYP
MAX
5.5
28
UNITS
V
V
T A = +25 ° C,
MAX4210
380
570
Supply Current
Input Bias Current
I CC
I RS+
V CC = +5.5V
V CC = +5.5V
V SENSE = 0mV
MAX4211
MAX4210
MAX4211
MAX421_A/B/C
MAX421_D/E/F
670
14
3
960
670
1100
25
8
μA
μA
I RS-
V SENSE = 0mV
3
8
IN Input Bias Current
Leakage Current
V SENSE Full-Scale Voltage
(Note 4)
IN Full-Scale Voltage
(Note 4)
IN Input Voltage Range
(Note 5)
V RS+ Full-Scale Voltage
(Note 4)
V RS+ Input Voltage Range
(Note 5)
I IN
I RS+ , I RS-
V SENSE_FS
V IN_FS
V IN
V RS+
MAX421_D/E/F
V CC = 0V
MAX421_A/B/D/E
MAX421_C/F
MAX421_D/E/F, V SENSE = 10mV to
100mV
MAX421_D/E/F, V SENSE = 10mV to
100mV
MAX421_A/B/C, V SENSE = 10mV to
100mV
MAX421_A/B/C, V SENSE = 10mV to
100mV
150
100
1
0.16
25
4
-0.1
0.1
-1
1
1.10
28
μA
μA
mV
V
V
V
V
Current into IOUT = 10μA
1.5
Minimum IOUT/POUT Voltage
V OUT_MIN
V SENSE =
0V, V RS+ =
25V
Current into IOUT = 100μA
Current into POUT = 10μA
2.5
1.5
80
mV
Current into POUT = 100μA
2.5
80
Maximum IOUT/POUT Voltage
(Note 6)
V OUT_MAX
V SENSE =
300mV,
V RS+ = 25V
Current out of
IOUT = 500μA
Current out of
POUT = 500μA
V CC -
0.25
V CC -
0.25
V
2
_______________________________________________________________________________________
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