MAX6887JETE datasheet(3/14 Pages) MAXIM

Part #	MAX6887JETE

Description	Hex/Quad, Power-Supply Supervisory Circuits

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Manufacturer	MAXIM [Maxim Integrated Products]

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Hex/Quad, Power-Supply Supervisory Circuits

_______________________________________________________________________________________

3

Note 1: 100% production tested at TA = +25°C and TA = +85°C. Specifications at TA = -40°C are guaranteed by design.

Note 2: Device may be supplied from any one of IN1–IN4 or VCC.

Note 3: The internal supply voltage, measured at VCC, equals the maximum of IN1–IN4.

Note 4: Versions Q and R require that power be applied through VCC.

ELECTRICAL CHARACTERISTICS (continued)

(VIN1–VIN4 or VCC = 2.7V to 5.8V, WDI = GND, MARGIN = MR = BP, TA = -40°C to +85°C, unless otherwise noted. Typical values are

at TA = +25°C.) (Notes 1, 2)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

VIL

0.6

MR, MARGIN, WDI Input Voltage

VIH

1.4

V

MR Input Pulse Width

tMR

1µs

MR Glitch Rejection

100

ns

MR to RESET or OV Delay

tD-MR

200

ns

MR to Internal BP Pullup Current

IMR

VMR = 1.4V

5

10

15

µA

MARGIN to Internal BP Pullup

Current

IMARGIN

VMARGIN = 1.4V

5

10

15

µA

WDI Pulldown Current

IWDI

VWDI = 0.6V

5

10

15

µA

WDI Input Pulse Width

50

ns

tWDI

Initial

92.16

102.4

112.64

Watchdog Timeout Period

tWD

Normal

1.44

1.6

1.76

s

Typical Operating Characteristics

(VIN1–VIN4 or VCC = 5V, WDI = GND, MARGIN = MR = BP, TA = +25°C, unless otherwise noted.)

IN1–IN4 SUPPLY CURRENT

vs. IN1–IN4 SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

5.6

4.6

3.6

0.75

0.80

0.85

0.90

0.95

1.00

0.70

2.6

TA = +85

°C

TA = +25

°C

TA = -40

°C

VCC SUPPLY CURRENT

vs. VCC SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

5.6

4.6

3.6

0.75

0.80

0.85

0.90

0.95

1.00

0.70

2.6

TA = +85

°C

TA = +25

°C

TA = -40

°C

185

190

195

200

210

205

215

220

180

RESET TIMEOUT PERIOD

vs. TEMPERATURE

TEMPERATURE (

°C)

60

35

10

-15

-40

85

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