MAX794CPE datasheet(2/20 Pages) MAXIM

Part #	MAX794CPE

Description	3.0V/3.3V Adjustable Microprocessor Supervisory Circuits

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Manufacturer	MAXIM [Maxim Integrated Products]

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µA

3.0V/3.3V Adjustable Microprocessor

Supervisory Circuits

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VCC = 3.17V to 5.5V for the MAX793T/MAX795T, VCC = 3.02V to 5.5V for the MAX793S/MAX795S, VCC = 2.72V to 5.5V for the

MAX793R/MAX794/MAX795R, VBATT = 3.6V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)

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.

Terminal Voltage (with respect to GND)

VCC ........................................................................-0.3V to 6.0V

VBATT .....................................................................-0.3V to 6.0V

All Other Inputs ..................-0.3V to the higher of VCC or VBATT

Continuous Input Current

VCC .................................................................................200mA

VBATT ................................................................................50mA

GND ..................................................................................20mA

Output Current

VOUT................................................................................200mA

All Other Outputs ..............................................................20mA

Continuous Power Dissipation (TA = +70°C)

8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) .....727mW

8-Pin SO (derate 5.88mW/°C above +70°C)..................471mW

16-Pin Plastic DIP (derate 10.53mW/°C above +70°C) .842mW

16-Pin Narrow SO (derate 9.52mW/°C above +70°C) ...696mW

Operating Temperature Ranges

MAX793_C_ _/MAX794C_ _/MAX795_C_ _ ......... 0°C to +70°C

MAX793_E_ _/MAX794E_ _/MAX795_E_ _ ........-40°C to +85°C

Storage Temperature Range .............................-65°C to +160°C

Lead Temperature (soldering, 10sec) .............................+300°C

MAX79_E

MAX79_C

VBATT > VCC

(Note 6)

IOUT = 250µA (Note 4)

IOUT = 30mA (Note 4)

VSW > VCC > 1.75V (Note 5)

IOUT = 75mA

VBATT = 2.3V

CONDITIONS

Battery Switch Threshold

(VCC falling)

V

2.30

2.41

2.52

VSW

2.55

2.68

2.80

2.69

2.82

2.95

mV

20

65

VCC -

VBATT

V

VBATT - 0.14

VOUT

OUT Output Voltage in

Battery-Backup Mode

VBATT - 0.1

VBATT - 0.034

V

1.1

5.5

1.0

5.5

Operating Voltage Range,

VCC, VBATT (Note 1)

V

VCC - 0.001

VCC - 0.5mV

VOUT

OUT Output Voltage in

Normal Mode

VCC - 0.12

VCC - 0.050

VCC - 0.3

VCC - 0.125

µA

0.5

Battery Leakage Current

(Note 3)

µA

1

BATT Supply Current

(excluding IOUT) (Note 2)

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

VCC = 0V, VOUT = 0V

µA

1

BATT Leakage Current,

Freshness Seal Enabled

IOUT = 250µA

IOUT = 1mA

MAX793T/MAX795T

MAX793S/MAX795S

This value is identical to the reset threshold,

VCC rising for VBATT > VRST

VCC -

VBATT

MAX793R/MAX795R/

MAX794

VBATT < VRST

mV

25

65

Battery Switch Threshold

(VCC rising) (Note 7)

MAX793/MAX794,

MR = VCC

µA

62

80

ISUPPLY

46

60

VCC Supply Current

(excluding IOUT, ICE OUT)

VCC = 2.1V,

VBATT = 2.3V

µA

32

45

ISUPPLY

VCC Supply Current in

Battery-Backup Mode

(excluding IOUT)

VCC < 3.6V

VCC < 5.5V

MAX793/MAX794

MAX795

24

35

MAX795

49

70

35

50

VCC < 3.6V

VCC < 5.5V

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