MAX6884_05 datasheet(7/34 Pages) MAXIM

Part #	MAX6884

Description	EEPROM-Programmable, Hex Power-Supply Supervisory Circuits

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Manufacturer	MAXIM [Maxim Integrated Products]

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EEPROM-Programmable, Hex

Power-Supply Supervisory Circuits

_______________________________________________________________________________________

7

1.25

1.50

1.75

2.00

2.50

2.25

2.75

3.00

1.00

MR TO RESET OR UV/OV OUTPUT

PROPAGATION DELAY vs. TEMPERATURE

TEMPERATURE (

°C)

60

35

10

-15

-40

85

MAX6884

MAX6885

NAME

FUNCTION

11

RESET

Reset Output. Configurable, active-low, open drain, or weak pullup. RESET assumes its

programmed conditional output state when VCC exceeds UVLO (2.5V).

22

WDO

Watchdog Timer Output. Configurable, active-low, open drain, or weak pullup. WDO

asserts when WDI is not toggled with a valid high-to-low or low-to-high transition within

the watchdog timeout period.

33

UV/OV

Undervoltage/Overvoltage Output. Configurable, active-low, open drain, or weak pullup.

UV/OV assumes its programmed conditional output state when VCC exceeds UVLO

(2.5V).

44

GND

Ground

55

WDI

Watchdog Timer Input. Logic input for the watchdog timer function. If WDI is not toggled

with a valid low-to-high or high-to-low transition within the watchdog timeout period,

WDO asserts. Progam initial and normal watchdog timeout periods from 6.25ms to

102.4s. WDI is internally pulled down to GND through a 10µA current sink.

66

MR

Manual Reset Input. Program MR to assert RESET and/or UV/OV when MR is asserted.

Leave MR unconnected or connect to DBP if unused. MR is internally pulled up to DBP

through a 10µA current source.

Typical Operating Characteristics (continued)

(VIN1–VIN4 or VCC = 5V, AUXIN = WDI = GND, MARGIN = MR = DBP. Typical values are at TA = +25°C, unless otherwise noted.)

ADC ACCURACY vs. TEMPERATURE

-0.4

-0.3

-0.2

-0.1

0

0.1

0.2

0.3

0.4

0.5

-0.5

TEMPERATURE (

°C)

60

35

10

-15

-40

85

VIN5 = 2V,

10mV/STEP

RANGE

VIN1 = 5V,

20mV/STEP

RANGE

VAUXIN = 1V

Pin Description

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