MAX6412 데이터 시트보기 (PDF) - Maxim Integrated

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MAX6412

Low-Power, Single/Dual-Voltage μP Reset Circuits with Capacitor-Adjustable Reset Timeout Delay

Maxim Integrated 

MAX6412–MAX6420

Low-Power, Single/Dual-Voltage μP Reset Circuits

with Capacitor-Adjustable Reset Timeout Delay

Electrical Characteristics (continued)

(VCC = 1V to 5.5V, TA = TMIN to TMAX, unless otherwise specified. Typical values are at VCC = 5V and TA = +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX

VCC ≥ 1.8V, ISINK = 500µA

0.3

RESET Output Voltage LOW

VOL

VCC ≥ 2.7V, ISINK = 1.2mA

0.3

VCC ≥ 4.5V, ISINK = 3.2mA

0.4

RESET IN Leakage Current

10

RESET IN Threshold

MR Input

VRST

VIL

VIH

VIL

VIH

VRST falling, VCC = 1.6V to 5.0V

VCC > 4.0V

VCC < 4.0V

1.205 1.255

0.8

2.4

0.3 x VCC

0.7 x VCC

MR Minimum Pulse Width

1

MR Glitch Rejection

75

MR to RESET Delay

20

MR Pullup Resistance

Pull up to VCC

12

20

28

Note 1: Devices production tested at TA = +25°C. Over temperature limits are guaranteed by design.

UNITS

V

nA

V

V

µs

ns

ns

kΩ

Typical Operating Characteristics

(VCC = 5V, CSRT = 1500pF, TA = +25°C, unless otherwise noted.)

SUPPLY CURRENT vs.

SUPPLY VOLTAGE

4

TA = +125°C

3

TA = +25°C

2

TA = -40°C

1

0

0

1

2

3

4

5

6

SUPPLY VOLTAGE (V)

SUPPLY CURRENT vs.

TEMPERATURE

3.5

3.0

VCC = 5V

2.5

VCC = 3.3V

2.0

VCC = 1.8V

1.5

1.0

VCC = 1V

0.5

0

-50 -25

0 25 50 75 100 125

TEMPERATURE (°C)

RESET TIMEOUT PERIOD vs. CSRT

10,000

1000

100

10

1

0.1

0.001 0.01

0.1 1 10

CSRT (nF)

100 1000

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