AS1115-BQFT(2012) 查看數據表（PDF） - austriamicrosystems AG

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AS1115-BQFT
(Rev.:2012)

64 LEDs, I²C Interfaced LED Driver with Keyscan

austriamicrosystems AG 

AS1115

Datasheet - Typical Operating Characteristics

Figure 10. VDIGIT vs. IDIGIT

0.4

Figure 11. Input High Level vs. Supply Voltage

3.5

3

0.3

2.5

0.2

lid 0.1

a 0

v 0

Vdd = 2.7V

Vdd = 3.3V

Vdd = 4V

Vdd = 5V

Vdd = 5.5V

0.05 0.1 0.15 0.2 0.25 0.3 0.35

Idig (A)

2

1.5

1

0.5

0

2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5

Vdd (V)

till Figure 12. ISEG vs. VSEG; VDD = 5V

50

G s 45

40

A t 35

s n 30

25

m te 20

15

a n 10

5

o 0

c 2

2.5

3

3.5

4

Vseg (V)

Rext = 10k

Rext = 13k

Rext = 18k

Rext = 3 0k

Rext = 56 k

4.5

5

Figure 13. ISEG vs. VSEG; VDD = 4V

50

45

40

35

30

25

20

15

10

5

0

1

1.5

2

2.5

3

Vseg (V)

Rext = 8 k2

Rext = 10k

Rext = 13k

Rext = 18k

Rext = 3 0k

3.5

4

al Figure 14. ISEG vs. VSEG; VDD = 3.3V

ic 50

45

40

n 35

h 30

25

c 20

e15

T10

Rext = 6k8

Rext = 8k2

Rext = 10k

Rext = 13k

Rext = 18k

Figure 15. ISEG vs. VSEG; VDD = 2.7V

50

45

40

35

30

25

20

15

10

Rext = 4 k7

Rext = 5k6

Rext = 6 k8

Rext = 10k

Rext = 13k

5

5

0

1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3 3.2

Vseg (V)

0

1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6

Vseg (V)

www.austriamicrosystems.com/LED-Driver-ICs/AS1115

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