AS1117-BQFT datasheet(8/24 Pages) AMSCO

Part #	AS1117-BQFT

Description	64 LED Driver for Mobile Applications with Error Detection

Download	24 Pages

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Manufacturer	AMSCO [ams AG]

Direct Link	http://www.ams.com

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8 / 24 page

www.austriamicrosystems.com/LED-Driver-ICs/AS1117

Revision 1.00

7 - 23

AS1117

Datasheet - Ty p i c a l O p e r a t i n g C h a r a c t e r i s t i c s

Figure 10. VDIGIT vs. IDIGIT

Figure 11. Input High Level vs. Supply Voltage

0

0.1

0.2

0.3

0.4

0

0.05

0.1

0.15

0.2

0.25

0.3

0.35

Idig (A)

Vdd = 2.7V

Vdd = 3.3V

Vdd = 4V

Vdd = 5V

Vdd = 5.5V

0

0.5

1

1.5

2

2.5

3

3.5

2.73.1

3.53.9

4.34.7

5.15.5

Vdd (V)

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

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

0

5

10

15

20

25

30

35

40

45

50

2

2.5

3

3.5

4

4.5

5

Vseg (V)

Rext = 10k

Rext = 13k

Rext = 18k

Rext = 30k

Rext = 56k

0

5

10

15

20

25

30

35

40

45

50

11.5

22.5

3

3.5

4

Vseg (V)

Rext = 8k2

Rext = 10k

Rext = 13k

Rext = 18k

Rext = 30k

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

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

0

5

10

15

20

25

30

35

40

45

50

1

1.2 1.4 1.6 1.8 2

2.2 2.4 2.6 2.8 3

3.2

Vseg (V)

Rext = 6k8

Rext = 8k2

Rext = 10k

Rext = 13k

Rext = 18k

0

5

10

15

20

25

30

35

40

45

50

1

1.2

1.4

1.6

1.8

2

2.2

2.4

2.6

Vseg (V)

Rext = 4k7

Rext = 5k6

Rext = 6k8

Rext = 10k

Rext = 13k

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