MAX6324EUT29 datasheet(2/13 Pages) MAXIM

Part #	MAX6324EUT29

Description	Supervisory Circuits with Windowed

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Manufacturer	MAXIM [Maxim Integrated Products]

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µP Supervisory Circuits with Windowed

(Min/Max) Watchdog and Manual Reset

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VCC = full range, TA = -40°C to +125°C, unless otherwise noted. Typical values are at VCC = 3V, 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.

Terminal Voltage (with respect to GND)

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

MR, RESET (MAX6323), WDI................-0.3V to (VCC + 0.3V)

WDPO, RESET (MAX6324) ..............................-0.3V to +6.0V

Input Current, VCC, WDI, MR ..............................................20mA

Output Current, RESET, WDPO ..........................................20mA

Rate of Rise, VCC ............................................................100V/µs

Continuous Power Dissipation (TA = +70°C)

6-Pin SOT23 (derate 8.7mW/°C above +70°C) ..........696mW

Operating Temperature Range .........................-40°C to +125°C

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

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

Soldering Temperature (reflow)

Lead(Pb)-Free ............................................................+260°C

Containing Lead.........................................................+240°C

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

4.25

4.38

4.50

4.63

4.75

Supply Current

ICC

27

57

µA

Operating Voltage Range

1.2

5.5

VCC

V

VCC = 5.5V

VCC = 2.5V or 3.3V

23

45

µA

1

V RESET = V WDPO = +5.5V, RESET, WDPO

deasserted

ILKG

WDPO, RESET Output Leakage

V

VCC - 1.5

ISOURCE = 800µA, VCC = 4.75V, RESET

deasserted, (MAX632_ _UT44, MAX632_ _UT46)

VOH

RESET Output Voltage

(MAX6323)

0.8 x VCC

ISOURCE = 500µA, VCC = 3.15V, RESET

deasserted (MAX632_ _UT23, MAX632_ _UT26,

MAX632_ _UT29, MAX632_ _UT31)

V

0.4

ISINK = 100µA, VCC > 1.2V, RESET asserted

VOL

WDPO, RESET Output Voltage

0.4

ISINK = 3.2mA, VCC = 4.25V (MAX632_ _UT44,

MAX632_ _UT46)

0.4

ISINK = 1.2mA, VCC = 2.25V (MAX632_ _UT23,

MAX632_ _UT26, MAX632_ _UT29,

MAX632_ _UT31)

µs

20

10mV/ms, VTH +100mV to VTH - 100mV

VCC to RESET Delay

ms

100

180

280

RESET deasserted

tRP

Reset Timeout Delay

V

2.25

2.32

2.38

CONDITIONS

MAX632_ _UT23

VTH

Reset Threshold Voltage

MAX632_ _UT44

MAX632_ _UT46

No load, RESET

deasserted

2.55

2.63

2.70

MAX632_ _UT26

2.85

2.93

3.00

MAX632_ _UT29

3.00

3.08

3.15

MAX632_ _UT31

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