www.austriamicrosystems.com/LED-Driver-ICs/AS1108

Revision 2.13

15 - 20

AS1108

Datasheet - Ty p i c a l A p p l i c a t i o n

20

17.7k

Ω

17.3k

Ω

16.6k

Ω

15.6k

Ω

13.6k

Ω

10

36.89k

Ω

35.7k

Ω

34.5k

Ω

32.5k

Ω

29.1k

Ω

Table 23. RSET vs. Segment Current and LED Forward Voltage, VDD = 5.0V

ISEG (mA)

VLED (V)

1.5

2.0

2.5

3.0

3.5

4.0

40

11.35k

Ω

11.12k

Ω

10.84k

Ω

10.49k

Ω

10.2k

Ω

9.9k

Ω

30

15.4k

Ω

15.1k

Ω

14.7k

Ω

14.4k

Ω

13.6k

Ω

13.1k

Ω

20

23.6k

Ω

23.1k

Ω

22.6k

Ω

22k

Ω

21.1k

Ω

20.2k

Ω

10

48.9k

Ω

47.8k

Ω

46.9k

Ω

45.4k

Ω

43.8k

Ω

42k

Ω

Table 24. Package Thermal Data

Package

Thermal Resistance (

ΘJA)

20 Wide SOIC

+85°C/W

Table 22. RSET vs. Segment Current and LED Forward Voltage, VDD = 4.0V (Continued)

ISEG (mA)

VLED(V)

1.5

2.0

2.5

3.0

3.5