Pin-Selectable Watchdog Timers

2

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ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

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)

WDI.....................................................................-0.3V to +6V

WDO (Open Drain: MAX6369/71/73) .................-0.3V to +6V

Maximum Current, Any Pin (input/output)...........................20mA

8-Pin SOT23 (derate 8.75mW/°C above +70°C).........700mW

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

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

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

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

Soldering Temperature (reflow)

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

Containing Lead (Pb).......................................................+240°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Operating Voltage Range

2.5

5.5

V

20

Supply Current

No load

22

µA

Input High Voltage

WDI, SET0, SET1, SET2

V

0.8

0.6

0.6

Input Low Voltage

WDI, SET0,

SET1, SET2

0.4

V

Logic Input Current (Note 2)

0

±10

nA

output asserted

0.3

V

WDO Output Low

Voltage

output asserted

0.4

V

WDO Leakage Current

MAX6369/MAX6371/MAX6373

1µA

output deasserted

WDO Output High

Voltage

output deasserted

V