MAX4373/MAX4374/MAX4375

Low-Cost, Micropower, High-Side

Current-Sense Amplifier +

Comparator + Reference ICs

Maxim Integrated | 2

www.maximintegrated.com

Absolute Maximum Ratings

Electrical Characteristics

(VCC = +2.7V to +28V, VRS+ = 0 to +28V, VSENSE = 0V, VRESET = 0V, RLOAD= 1MΩ, TA = TMIN to TMAX, unless otherwise noted.

Typical values are at TA = +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.

VCC, RS+, RS- to GND ...........................................-0.3V to +30V

OUT to GND ................................................-0.3V to the lesser of

(VCC + 0.3V) or +15V

CIN1, CIN2, RESET to GND ........................-0.3V to the lesser of

(VCC + 0.3V) or +12V

Differential Input Voltage (VRS+ - VRS-) ..............................±0.3V

COUT1, COUT2 to GND........................................-0.3V to +6.0V

Current into Any Pin..........................................................±10mA

Continuous Power Dissipation (TA = +70°C)

8-Pin µMAX (derate 4.1mW/°C above +70°C) .............330mW

8-Pin SO (derate 5.9mW/°C above +70°C)..................471mW

10-Pin µMAX (derate 5.6mW/°C above +70°C) ...........444mW

14-Pin SO (derate 8.3mW/°C above +70°C)................667mW

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

Soldering Temperature (reflow) .......................................+260°C

mV

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

-25

2.0

Input Bias Current

IRS+

0

2.5

µA

Leakage Current

IRS+, IRS-

±0.015

±0.5

µA

Supply Current

ICC

50

100

µA

IRS-

04

-50

4

Full-Scale Sense Voltage

(Note 4)

VSENSE

150

170

mV

100

120

Common-Mode Input Range

(Note 3)

Operating Voltage Range

(Note 2)

VCC

2.7

28

V

VCMR

028

V

Common-Mode Rejection

CMR

85

dB

OUT Voltage High

VCC -

VOH

0.25

V

CONDITIONS

VRS+ ≤ 2V

VRS+ > 2V

VCC = 0V, VRS+ = 28V

VRS+ > 2V, VSENSE = 5mV

VRS+ > 2V

VRS+ ≤ 2V

VCC = 2.7V, IOUT = -500µA, VRS+ = 12V

Gain = +20V/V, +50V/V, VRS+ = 12V

Gain = +100V/V, VRS+ = 12V

VRS+ > 2V

Input Offset Voltage

VOS

0.1

1

VCC = VRS+ = 12V

(Note 11)

TA = +25°C

TA = TMIN to TMAX

2

8.5

65

IOUT = 100µA

IOUT = 10µA

OUT Voltage Low

VOUT

2.5

mV

VCC = 2.7V,

VRS+ = 12V

±0.30

±2

TA = +25°C

VSENSE =

100mV

(Note 6)

±3

VCC = 12V,

VRS+ = 12V

TA = TMIN to TMAX

±0.35

±2

VCC = 28V,

VRS+ = 28V

TA = +25°C

±3

TA = TMIN to TMAX

±5.0

VCC = 12V, VRS+ = 0.1V

VSENSE = 6.25mV, VCC = 12V,

VRS+ = 12V (Note 7)

Total OUT Voltage Error

(Note 5)

VOUT

±5.0

%