Low-Voltage, Quad-/Hex-/Octal-Voltage

µP Supervisors

4

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PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

REFERENCE OUTPUT (MAX16005 Only)

Reference Short-Circuit Current

Shorted to GND

0.8

mA

Reference Output Accuracy

No load

1.200

1.235

1.270

V

Line Regulation

0.005

% / V

Reference Load Regulation

Sourcing, 0

10

Ω

WATCHDOG TIMER (MAX16001/MAX16002/MAX16004–MAX16007)

WDI Input-Voltage Low

0.3 x

V

WDI Input-Voltage High

0.7 x

V

WDI Pulse Width

(Note 5)

50

ns

Watchdog Timeout Period

1.12

1.6

2.40

s

Watchdog Startup Period

MAX16001/2/4/6/7

35

54

72

s

Watchdog Input Current

-1

+1

µA

0.30

WDO Output-Voltage Low

(MAX16005 Only)

0.30

V

WDO Output-Voltage High

(MAX16005 Only)

deasserted

0.8 x

V

DIGITAL LOGIC

TOL Input-Voltage Low

0.3 x

V

TOL Input-Voltage High

0.7 x

V

TOL Input Current

100

nA

MARGIN Input-Voltage Low

0.3 x

V

MARGIN Input-Voltage High

0.7 x

V

MARGIN Pullup Resistance

12

20

28

k

Ω

MARGIN Delay Time

Rising or falling (Note 6)

50

µs

ELECTRICAL CHARACTERISTICS (continued)

Note 3: Measured with WDI, MARGIN, and MR unconnected.

Note 4: The minimum and maximum specifications for this parameter are guaranteed by using the worst case of the SRT ramp cur-

rent and SRT threshold specifications.

Note 5: Guaranteed by design and not production tested.

Note 6: Amount of time required for logic to lock/unlock outputs from margin testing.