MAX6887 データシートの表示（PDF） - Maxim Integrated

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MAX6887

Hex/Quad, Power-Supply Supervisory Circuits

Maxim Integrated 

Hex/Quad, Power-Supply Supervisory Circuits

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

MR, MARGIN, WDI Input Voltage

MR Input Pulse Width

MR Glitch Rejection

MR to RESET or OV Delay

MR to Internal BP Pullup Current

MARGIN to Internal BP Pullup

Current

VIL

VIH

tMR

tD-MR

IMR

VMR = 1.4V

IMARGIN VMARGIN = 1.4V

0.6

1.4

1

100

200

5

10

15

5

10

15

WDI Pulldown Current

WDI Input Pulse Width

IWDI

VWDI = 0.6V

5

10

15

50

Watchdog Timeout Period

tWDI

Initial

tWD

Normal

92.16 102.4 112.64

1.44 1.6 1.76

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.

UNITS

V

µs

ns

ns

µA

µA

µA

ns

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

1.00

0.95

TA = +85°C

0.90

0.85

0.80

TA = +25°C

0.75

TA = -40°C

0.70

2.6

3.6

4.6

5.6

SUPPLY VOLTAGE (V)

VCC SUPPLY CURRENT

vs. VCC SUPPLY VOLTAGE

1.00

0.95

TA = +85°C

0.90

0.85

0.80

TA = +25°C

0.75

TA = -40°C

0.70

2.6

3.6

4.6

5.6

SUPPLY VOLTAGE (V)

RESET TIMEOUT PERIOD

vs. TEMPERATURE

220

215

210

205

200

195

190

185

180

-40 -15

10

35

60

85

TEMPERATURE (°C)

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