MAX6821 datasheet(2/9 Pages) MAXIM

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Low-Voltage SOT23 µP Supervisors with

Manual Reset and Watchdog Timer

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(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)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

VCC to GND ...........................................................-0.3V to +6.0V

Open-Drain RESET................................................-0.3V to +6.0V

Push-Pull RESET, RESET, MR, WDI ...........-0.3V to (VCC + 0.3V)

Input Current (VCC) .............................................................20mA

Output Current (RESET, RESET).........................................20mA

Continuous Power Dissipation (TA = +70°C)

5-Pin SOT23 (derate 7.1mW/°C above +70°C)............571mW

Operating Temperature Range .........................-40°C to +125°C

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

TA = 0

°C to +85°C

1.0

5.5

Operating Voltage Range

VCC

TA = -40

°C to +125°C

1.2

5.5

TA = -40

°C to +85°C10

VCC = +5.5V, no load

TA = -40

°C to +125°C30

TA = -40

°C to +85°C7

VCC = +3.6V, no load

TA = -40

°C to +125°C25

TA = -40

°C to +85°C5

VCC Supply Current

(MR and WDI Unconnected)

ICC

VCC = +3.6V, no load

(MAX6825 only)

TA = -40

°C to +125°C20

µA

TA = -40

°C to +85°C

4.50

4.63

4.75

MAX682_L

TA = -40

°C to +125°C

4.47

4.63

4.78

TA = -40

°C to +85°C

4.25

4.38

4.50

MAX682_M

TA = -40

°C to +125°C

4.22

4.38

4.53

TA = -40

°C to +85°C

3.00

3.08

3.15

MAX682_T

TA = -40

°C to +125°C

2.97

3.08

3.17

TA = -40

°C to +85°C

2.85

2.93

3.00

MAX682_S

TA = -40

°C to +125°C

2.83

2.93

3.02

TA = -40

°C to +85°C

2.55

2.63

2.70

MAX682_R

TA = -40

°C to +125°C

2.53

2.63

2.72

TA = -40

°C to +85°C

2.25

2.32

2.38

MAX682_Z

TA = -40

°C to +125°C

2.24

2.32

2.40

TA = -40

°C to +85°C

2.12

2.19

2.25

MAX682_Y

TA = -40

°C to +125°C

2.11

2.19

2.27

TA = -40

°C to +85°C

1.62

1.67

1.71

MAX682_W

TA = -40

°C to +125°C

1.61

1.67

1.72

VCC Reset Threshold

(VCC Falling)

VTH

MAX682_V

TA = -40

°C to +85°C

1.52

1.58

1.62

Reset Threshold Temperature

Coefficient

ppm/°C

Reset Threshold Hysteresis

2 ✕ VTH

VCC to Reset Output Delay

tRD

VCC = VTH to (VTH - 100mV)

µs

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