ISL8485, ISL8490, ISL8491

FN6046 Rev 10.02

Page 10 of 15

Oct 2, 2023

Typical Performance Curves VCC = 5V, TA = 25°C, ISL8485, ISL8490, ISL8491; unless otherwise specified

FIGURE 6. DRIVER OUTPUT CURRENT vs DIFFERENTIAL

OUTPUT VOLTAGE

FIGURE 7. DRIVER DIFFERENTIAL OUTPUT VOLTAGE vs

TEMPERATURE

FIGURE 8. DRIVER OUTPUT CURRENT vs SHORT CIRCUIT

VOLTAGE

FIGURE 9. SUPPLY CURRENT vs TEMPERATURE

FIGURE 10. DRIVER PROPAGATION DELAY vs

TEMPERATURE

FIGURE 11. DRIVER SKEW vs TEMPERATURE

DIFFERENTIAL OUTPUT VOLTAGE (V)

01

23

45

0

10

20

30

40

50

60

70

80

90

-40

0

50

85

2

2.2

2.4

2.6

2.8

3

3.2

3.4

3.6

TEMPERATURE (°C)

-25

25

75

RDIFF = 54Ω

RDIFF = 100Ω

OUTPUT VOLTAGE (V)

-7 -6

-4

-2

0

2

4

6

8

10

12

-60

-40

-20

0

20

40

60

80

100

120

140

160

-80

-100

-120

Y OR Z = HIGH

Y OR Z = LOW

-40

0

50

85

TEMPERATURE (°C)

-25

25

75

200

300

400

500

600

150

250

350

450

550

ISL8485, DE = GND, RE = X

ISL8490/ISL8491: DE = RE = X

650

700

ISL8485: DE = VCC, RE = X

ISL8485: DE = GND, RE = X,

-40

0

50

85

TEMPERATURE (°C)

-25

25

75

25

30

35

40

tPLHY

tPHLY

tPHLZ

tPLHZ

20

-40

0

50

85

TEMPERATURE (°C)

-25

25

75

1

1.5

2

2.5

3

|tPLHY - tPHLZ|

|tPHLY - tPLHZ|

|CROSSING PT. OF Y

 and Z - CROSSING PT. OF

Y

 and Z