+5V, Low-Power µP Supervisory Circuits

with Adjustable Reset/Watchdog

4

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____________________________Typical Operating Characteristics (continued)

4.25

2.50

-40

40

SUPPLY CURRENT

vs. TEMPERATURE

3.25

3.00

2.75

4.00

TEMPERATURE (°C)

080

-60

-20

60

20

100

3.75

3.50

4.50

5.00

4.75

RESET DEASSERTED

NO LOAD

1.220

-40

40

RESET IN THRESHOLD VOLTAGE

vs. TEMPERATURE

1.218

TEMPERATURE (°C)

080

-60

-20

60

20

100

1.216

1.214

1.222

1.226

1.224

-40

40

68

TEMPERATURE (°C)

080

-60

-20

60

20

100

64

60

56

52

72

76

RESET AND WATCHDOG

4.12

SUPPLY VOLTAGE (V)

23

5

46

4.08

4.04

4.00

3.96

4.16

3.6

2.6

6.0

2.0

4.0

SUPPLY CURRENT vs.

SUPPLY VOLTAGE

2.8

3.4

SUPPLY VOLTAGE (V)

3.0

5.0

1.5

2.5

4.5

3.5

5.5

3.2

3.0

3.8

4.2

4.0

RESET DEASSERTED

NO LOAD

4.05

3.80

-40

40

RESET AND NORMAL-MODE

WATCHDOG TIMEOUT PERIOD

vs. TEMPERATURE

3.85

4.00

TEMPERATURE (°C)

080

-60

-20

60

20

100

3.95

3.90

4.10

4.20

4.15

0

0

200

400

600

1000

800

40

RESET THRESHOLD OVERDRIVE (mV)

80

120

30

70

110

20

60

100

10

50

90

RESET OCCURS

ABOVE THE CURVE

SEE

TRANSIENTS SECTION

MAXIMUM TRANSIENT DURATION vs.