AS1108 查看數據表（PDF） - austriamicrosystems AG

零件编号

产品描述 (功能)

生产厂家

AS1108

4-Digit LED Display Driver

austriamicrosystems AG 

AS1108

Data Sheet

austriamicrosystems

Selecting RSET Resistor Value and Using External Drivers

Table 21. RSET vs. Segment Current and LED Forward Voltage, VDD = 4.0V (Continued)

ISEG (mA)

20

10

1.5

17.7kΩ

36.89kΩ

2.0

17.3kΩ

35.7kΩ

VLED(V)

2.5

16.6kΩ

34.5kΩ

3.0

15.6kΩ

32.5kΩ

3.5

13.6kΩ

29.1kΩ

Table 22. RSET vs. Segment Current and LED Forward Voltage, VDD = 5.0V

ISEG (mA)

40

30

20

10

1.5

11.35kΩ

15.4kΩ

23.6kΩ

48.9kΩ

2.0

11.12kΩ

15.1kΩ

23.1kΩ

47.8kΩ

VLED (V)

2.5

3.0

10.84kΩ

10.49kΩ

14.7kΩ

14.4kΩ

22.6kΩ

22kΩ

46.9kΩ

45.4kΩ

3.5

10.2kΩ

13.6kΩ

21.1kΩ

43.8kΩ

4.0

9.9kΩ

13.1kΩ

20.2kΩ

42kΩ

Table 23. Package Thermal Data

Package

20 Narrow DIP

20 Wide SOIC

Thermal Resistance (ΘJA)

+75°C/W

+85°C/W

www.austriamicrosystems.com

Revision 2.1

13 - 19

Share Link: