MAX807MEWE datasheet(3/16 Pages) MAXIM

Part #	MAX807MEWE

Description	Full-Featured uP Supervisory Circuit with /-1.5% Reset Accuracy

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Manufacturer	MAXIM [Maxim Integrated Products]

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Full-Featured µP Supervisory Circuit with

±1.5% Reset Accuracy

_______________________________________________________________________________________

3

VIH

ELECTRICAL CHARACTERISTICS (continued)

(VCC = 4.60V to 5.5V for the MAX807L, VCC = 4.50V to 5.5V for the MAX807N, VCC = 4.35V to 5.5V for the MAX807M,

VBATT = 2.8V, VPFI = 0V, TA = TMIN to TMAX. Typical values are tested with VCC = 5V and TA = +25°C, unless otherwise noted.)

CONDITIONS

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

Sink current

70

4.600

4.675

4.750

V

5

BATT ON Output

Short-Circuit Current

Source current, VCC = 0V, VBATT = 2.8V

4.350

4.425

4.500

LOW LINE to RESET

Threshold Voltage

VLR

Reset Threshold Hysteresis

VCC falling

30

52

70

mV

13

mV

4.500

4.575

4.650

VRST

Reset Threshold

VCC rising and falling

4.63

4.71

MAX807N

VCC to LOW LINE Delay

VCC falling at 1mV/µs

24

µs

26

VCC to RESET Delay

VCC falling at 1mV/µs

4.48

4.56

MAX807M

Minimum Watchdog Input

Pulse Width

Watchdog-Timeout Period

VIL = 0.8V, VIH = 0.75 x VCC

tWD

100

ns

V

1.12

1.6

2.24

s

ms

140

200

280

tRP

RESET Active-Timeout Period

VCC rising

4.73

4.81

MAX807L

MAX807N

MAX807M

0.3

ISINK = 50µA,

VBATT = 0V, VCC falling

VCC - 1.5

VCC - 0.1

RESET Output Voltage

ISOURCE = 0.1mA

0.1

0.4

ISINK = 3.2mA, VCC = 4.25V

mA

60

Output sink current, VCC = 4.25V

1.6

ISC

RESET Output

Short-Circuit Current

Output source current

VCC = 1V,

MAX807_C

VCC = 1.2V,

MAX807_E/M

V

0.4

ISINK = 3.2mA

VCC - 1.5

RESET Output Voltage

ISOURCE = 5mA

V

0.4

ISINK = 3.2mA, VCC = 4.25V

VCC - 1.5

LOW LINE Output Voltage

ISOURCE = 5mA

mA

60

Output sink current

15

ISC

RESET Output

Short-Circuit Current

Output source current, VCC = 4.25V

mA

28

Output sink current, VCC = 4.25V

20

ISC

LOW LINE Output

Short-Circuit Current

Output source current

V

0.4

ISINK = 3.2mA

VCC - 1.5

WDO Output Voltage

ISOURCE = 5mA

mA

35

Output sink current

20

ISC

WDO Output

Short-Circuit Current

Output source current

VLL

V

LOW LINE Threshold,

VCC Rising

V

0.75 x VCC

0.8

VIH

WDI Threshold Voltage

(Note 4)

VIL

µA

-50

-10

Reset deasserted, WDI = 0V

16

50

WDI Input Current

Reset deasserted, WDI = VCC

RESET, LOW LINE, AND WATCHDOG TIMER

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