Octal SMBus-to-Parallel I/O Expanders

4

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Typical Operating Characteristics (continued)

IO_

2V/div

ALERT

5V/div

40ns/div

IO_ DRIVEN EXTERNALLY

ALERT DELAY

(IO_ RISING)

0

10

5

20

15

35

30

25

40

-40

0

-20

20406080

100

IO_ CURRENT LIMIT vs. TEMPERATURE

TEMPERATURE (

°C)

IO_ = 0 PULLED UP TO +28V

0

10

5

20

15

25

30

010

15

5

202530

IO_ CURRENT LIMIT vs. IO_ VOLTAGE

V+ = 4.5V

IO_ = 0

0

5

10

15

20

25

30

35

40

2.5

3.5

3.0

4.0

4.5

5.0

5.5

IO_ CURRENT LIMIT vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

IO_ = 0

0

0.3

0.2

0.1

0.4

0.5

0.6

0.7

0.8

0.9

1.0

010

5

15202530

IO_ BIAS CURRENT vs. IO_ VOLTAGE

IO_ = 1

0

0.2

0.6

0.4

0.8

1.0

-40

0

-20

20406080

100

IO_ BIAS CURRENT vs. TEMPERATURE

TEMPERATURE (

°C)

V+ = 5V

IO_ = 1 PULLED UP TO 28V

IO_

10V/div

SMBSUS

5V/div

SUSPEND-STATE DELAY

(IO_ RISING)

100ns/div

PULLUP = 10k

Ω to 28V

IO_

10V/div

SMBSUS

5V/div

100ns/div

SUSPEND-STATE DELAY

(IO_ FALLING)

PULLUP = 10k

Ω to 28V