MAX6824LUK-T datasheet(3/9 Pages) MAXIM

Part #	MAX6824LUK-T

Description	Low-Voltage SOT23 關P Supervisors with Manual Reset and Watchdog Timer

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Manufacturer	MAXIM [Maxim Integrated Products]

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Low-Voltage SOT23 µP Supervisors with

Manual Reset and Watchdog Timer

_______________________________________________________________________________________

3

ELECTRICAL CHARACTERISTICS (continued)

(VCC = +4.5V to +5.5V for MAX682_L/M, VCC = +2.7V to +3.6V for MAX682_T/S/R, VCC = +2.1V to +2.75V for MAX682_Z/Y, VCC =

+1.53V to +2.0V for MAX682_W/V, TA = -40°C to +125°C, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1)

Note 1: Over-temperature limits are guaranteed by design and not production tested. Devices tested at TA = +25°C.

Note 2: Guaranteed by design and not production tested.

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

TA = -40

°C to +85°C

140

200

280

Reset Timeout Period

tRP

TA = -40

°C to +125°C

100

320

ms

VCC

≥ 1.0V, ISINK = 50µA, reset asserted,

TA = 0

°C to +85°C

0.3

VCC

≥ 1.2V, ISINK = 100µA, reset asserted

0.3

VCC

≥ 2.55V, ISINK = 1.2mA, reset asserted

0.3

RESET Output LOW

(Push-Pull or Open-Drain)

VOL

VCC

≥ 4.25V, ISINK = 3.2mA, reset asserted

0.4

V

VCC

≥ 1.8V, ISOURCE = 200µA, reset not

asserted

0.8 ✕ VCC

VCC

≥ 3.15V, ISOURCE = 500µA, reset not

asserted

0.8 ✕ VCC

RESET Output HIGH

(Push-Pull Only)

VOH

VCC

≥ 4.75V, ISOURCE = 800µA, reset not

asserted

0.8 ✕ VCC

V

Open-Drain RESET Output

Leakage Current (Note 1)

ILKG

VCC > VTH, RESET not asserted

1.0

µA

VCC

≥ 1.0V, ISOURCE = 1µA, reset asserted,

TA = 0

°C to +85°C

0.8 ✕ VCC

VCC

≥ 1.50V, ISOURCE = 100µA, reset asserted

0.8 ✕ VCC

VCC

≥ 2.55V, ISOURCE = 500µA, reset asserted

0.8 ✕ VCC

RESET Output HIGH

(Push-Pull Only)

VOH

VCC

≥ 4.25V, ISOURCE = 800µA, reset asserted

0.8 ✕ VCC

V

VCC

≥ 1.8V, ISINK = 500µA, reset not asserted

0.3

VCC

≥ 3.15V, ISINK = 1.2mA, reset not asserted

0.3

RESET Output LOW

(Push-Pull Only)

VOL

VCC

≥ 4.75V, ISINK = 3.2mA, reset not asserted

0.4

V

MANUAL RESET INPUT (MAX6821/MAX6822/MAX6823/MAX6825)

VIL

0.3 ✕ VCC

MR Input Voltage

VIH

0.7 ✕ VCC

V

MR Minimum Input Pulse

1µs

MR Glitch Rejection

100

ns

MR to Reset Delay

200

ns

MR Pullup Resistance

25

50

75

k

Ω

WATCHDOG INPUT (MAX6821/MAX6822/MAX6823/MAX6824)

TA = -40

°C to +85°C

1.12

1.60

2.40

Watchdog Timeout Period

tWD

TA = -40

°C to +125°C

0.80

2.60

s

WDI Pulse Width (Note 2)

tWDI

50

ns

VIL

0.3 ✕ VCC

WDI Input Voltage

VIH

0.7 ✕ VCC

V

WDI = VCC, time average

120

160

WDI Input Current

IWDI

WDI = 0, time average

-20

-15

µA

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