MAX690ACSLASHD datasheet(3/13 Pages) MAXIM

3 / 13 page

(VCC = 4.75V to 5.5V for MAX690A/MAX802L/MAX805L, VCC = 4.5V to 5.5V for MAX692A/MAX802M, VBATT = 2.8V, TA = TMIN to

TMAX, unless otherwise noted.)

Note 2: Either VCC or VBATT can go to 0V, if the other is greater than 2.0V.

Note 3: “-” = battery-charging current, “+” = battery-discharging current.

Note 4: WDI is guaranteed to be in an intermediate, non-logic level state if WDI is floating and VCC is in the operating voltage

range. WDI is internally biased to 35% of VCC with an input impedance of 50kΩ.

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

RESET Output Voltage

ISOURCE = 800μA

ISINK = 3.2mA

0.4

MAX69_AC, MAX802_C, VCC = 1.0V

ISINK = 50μA

0.3

MAX69_AE/M, MAX802_E,

VCC = 1.2V, ISINK = 100μA

0.3

RESET Output Voltage

MAX805LC, ISOURCE = 4μA, VCC = 1.1V

0.8

MAX805LE/M, ISOURCE = 4μA, VCC = 1.2V

0.9

MAX805L, ISOURCE = 800μA

VCC - 1.5

MAX805L, ISINK = 3.2mA

0.4

Watchdog Timeout

tWD

1.00

1.60

2.25

WDI Pulse Width

tWP

VIL = 0.4V, VIH = (0.8) (VCC)

WDI Input Threshold (Note 4)

VCC = 5V

Logic low

0.8

Logic high

3.5

WDI Input Current

WDI = VCC

150

µA

WDI = 0V

-150

-50

PFI Input Threshold

MAX69_A, MAX805L, VCC = 5V

1.20

1.25

1.30

MAX802_C/E, VCC = 5V

1.225

1.250

1.275

PFI Input Current

-25

0.01

PFO Output Voltage

ISOURCE = 800μA

VCC - 1.5

ISINK = 3.2mA

0.4

MAX690A/MAX692A/

MAX802L/MAX802M/

MAX805L

Microprocessor Supervisory Circuits

www.maximintegrated.com

Maxim Integrated │ 3

Electrical Characteristics (continued)

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