ACT5880 datasheet(45/87 Pages) ACTIVE-SEMI

45 / 87 page

ACT5880

Rev 2, 03-Sep-13

- 45 -

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NON-LINEAR DUTY SETTING

STEP-UP DC/DC VOLTAGE SETTING

Unit: V

DUTY_[4:1], DUTY_[0] is ignored for its less change.

0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111

000

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

001

0.8

0.9

1.0

1.1

1.2

1.3

1.4

1.5

010

1.6

1.7

1.8

1.9

2.0

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

3.0

3.1

011

3.2

3.4

3.6

3.8

4.0

4.2

4.4

4.6

4.8

5.0

5.2

5.4

5.6

5.8

6.0

6.2

100

6.4

6.8

7.2

7.6

8.0

8.4

8.8

9.2

9.6

101

110

111

100

[7:5]

VSET

[7:4]

VSET[3:0]

0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111

0000

0001

0010

0011

0100

3.0

3.1

3.2

3.3

3.4

3.5

3.6

3.7

3.8

3.9

4.0

4.1

4.2

4.3

4.4

4.5

0101

4.6

4.7

4.8

4.9

5.0

5.1

5.2

5.3

5.4

5.5

5.6

5.7

5.8

5.9

6.0

6.1

0110

6.2

6.3

6.4

6.5

6.7

6.8

6.9

7.0

7.1

7.2

7.3

7.4

7.5

7.6

7.7

0111

7.8

7.9

8.0

8.1

8.2

8.3

8.4

8.5

8.6

8.7

8.8

8.9

9.0

9.1

9.2

9.3

1000

9.4

9.5

9.6

9.7

9.8

9.9

10.0

10.1

10.2

10.3

10.4

10.5

10.6

10.7

10.8

10.9

1001 11.0 11.1 11.2 11.3 11.4 11.5 11.6 11.7 11.8 11.9 12.0 12.1 12.2 12.3

12.4

12.5

1010 12.6 12.8 13.0 13.2 13.4 13.6 13.8 14.0 14.2 14.4 14.6 14.8 15.0 15.2

15.4

15.6

1011 15.8 16.0 16.2 16.4 16.6 16.8 17.0 17.2 17.4 17.6 17.8 18.0 18.2 18.4

18.6

18.8

1100 19.0 19.4 19.8 20.2 20.6 21.0 21.6 21.8 22.2 22.6

23.4

23.8

24.2

24.6

25.0

1101 25.4 25.8 26.2 26.6 27.0 27.4 27.8 28.2 28.6 29.0 29.4 29.8 30.2 30.6

31.4

1110 31.8 32.2 32.6 33.0 33.4 33.8 34.2 34.6

35.4

35.8

36.2

36.6

37.4

37.8

1111 38.2 38.6 39.0 39.4 39.8 40.2 40.6 41.0

41.4 for all codes after 11111000.

3.0 for all codes before 01000000.

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