MAX4373/MAX4374/MAX4375

Low-Cost, Micropower, High-Side

Current-Sense Amplifier +

Comparator + Reference ICs

Maxim Integrated | 4

www.maximintegrated.com

0

20

10

40

30

50

60

010

15

5

202530

SUPPLY CURRENT

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

MAX4373

MAX4374/MAX4375

VSENSE = 5mV

44

45

46

47

48

49

50

51

52

010

5

15202530

SUPPLY CURRENT

vs. COMMON-MODE VOLTAGE

COMMON-MODE VOLTAGE (V)

MAX4374/MAX4375

MAX4373

VSENSE = 5mV

-2.0

-0.5

-1.0

-1.5

0

0.5

1.5

1.0

2.0

26

8

4

10121416182022242628

TOTAL OUTPUT ERROR

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

AV = +100V/V

AV = +20V/V

AV = +50V/V

VSENSE = 100mV

Note 1: All devices are 100% production tested at TA = +25°C. All temperature limits are guaranteed by design.

Note 2: Guaranteed by PSR test.

Note 3: Guaranteed by OUT Voltage Error test.

Note 4: Guaranteed by Gain Accuracy test. Output voltage is internally clamped not to exceed 12V.

Note 5: Total OUT Voltage Error and Full-Scale Accuracy are the sum of gain and offset voltage errors.

Note 6: Measured at IOUT = -500µA (RLOAD = 4kΩ for gain of +20V/V, RLOAD = 10kΩ for gain of +50V/V, RLOAD = 20kΩ for gain of

+100V/V).

Note 7: +6.25mV = 1/16 of +100mV full-scale voltage.

Note 8: The device will not experience phase reversal when overdriven.

Note 9: All comparator tests are done with VRS+ = +12V.

Note 10: VPULL-UP is defined as an externally applied voltage through a resistor to pull up the comparator output.

Note 11: VOS is extrapolated from the gain accuracy test.

Electrical Characteristics (continued)

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

Typical values are at TA = +25°C.) (Note 1)

VCC = 28V, VPULL-UP = 5V (Note 10)

CONDITIONS

µA

1

Output High Leakage Current

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

V

2.0

VIH

RESET Input High Voltage

V

0.8

VIL

RESET Input Low Voltage

VIL = 0, VIH = 5.5V, VCC = 28V

µA

-0.5

0.5

IIL, IIH

Logic Input Current

µs

3

tRPD

RESET Propagation Delay

µs

1.5

tRPW

Minimum

RESET Pulse Width

Typical Operating Characteristics

(VRS+ = +12V, VCC = +12V, RLOAD = 1MΩ, VRESET = 0V, VSENSE = 100mV, VPULL-UP = +5V, RPULL-UP = 10kΩ, TA = +25°C, unless

otherwise noted.)