ADP8860ACPZ-R7 datasheet(41/52 Pages) AD

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ADP8860

Rev. 0 | Page 41 of 52

Sink Current Register LED7 (ISC7)—Register 0x14

Table 49. ISC7 Bit Map

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

SCR

SCD7

Table 50. Bit Descriptions for the ISC7 Register

Bit Name

Bit No.

Description

SCR

1 = Sink Current 1.

0 = Sink Current 0. For the lowest input current consumption and optimal efficiency, set SCR to 0 when D7 is set

to ISC in Register 0x05 and SC7_EN = 0.

SCD7

6:0

For Sink Current 0, use the following DAC code schedule (see Table 28 for a complete list of values):

DAC

Linear Law (mA)

Square Law (mA)

0000000

0000001

0.236

0.002

0000010

0.472

0.007

0000011

0.709

0.017

…

1111111

For Sink Current 1, use the following DAC code schedule (see Table 51 for a complete list of values):

DAC

Linear Law (mA)

Square Law (mA)

0000000

0000001

0.472

0.004

0000010

0.945

0.014

0000011

01.417

0.034

…

1111111

Table 51. Linear and Square Law Currents for LED7 (SCR = 1)

DAC Code

Linear Law (mA)

Square Law1 (mA)

0x00

0.000

0x01

0.472

0.004

0x02

0.945

0.014

0x03

1.42

0.034

0x04

1.89

0.06

0x05

2.36

0.094

0x06

2.83

0.134

0x07

3.31

0.182

0x08

3.78

0.238

0x09

4.25

0.302

0x0A

4.72

0.372

0x0B

5.20

0.45

0x0C

5.67

0.536

0x0D

6.14

0.628

0x0E

6.61

0.73

0x0F

7.09

0.838

0x10

7.56

0.952

0x11

8.03

1.076

0x12

8.50

1.206

0x13

8.98

1.342

DAC Code

Linear Law (mA)

Square Law1 (mA)

0x14

9.45

1.488

0x15

9.92

1.64

0x16

10.39

1.8

0x17

10.87

1.968

0x18

11.34

2.142

0x19

11.81

2.326

0x1A

12.28

2.514

0x1B

12.76

2.712

0x1C

13.23

2.916

0x1D

13.70

3.128

0x1E

14.17

3.348

0x1F

14.65

3.574

0x20

15.12

3.81

0x21

15.59

4.052

0x22

16.06

4.3

0x23

16.54

4.558

0x24

17.01

4.822

0x25

17.48

5.092

0x26

17.95

5.372

0x27

18.43

5.658

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