LM3530 datasheet(33/50 Pages) TI1

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Bit 0

Data

Zone Target Register 0 (ZT0)

Address 0x70, Default Value 0x19

MSB

LSB

Bit 1

Data

Bit 2

Data

Bit 3

Data

Bit 4

Data

Bit 5

Data

Bit 6

Data

N/A

Bit 0

Data

Zone Target Register 1 (ZT1)

Address 0x71, Default Value 0x33

MSB

LSB

Bit 1

Data

Bit 2

Data

Bit 3

Data

Bit 4

Data

Bit 5

Data

Bit 6

Data

N/A

Bit 0

Data

Zone Target Register 2 (ZT2)

Address 0x72, Default Value 0x4C

MSB

LSB

Bit 1

Data

Bit 2

Data

Bit 3

Data

Bit 4

Data

Bit 5

Data

Bit 6

Data

N/A

Bit 0

Data

Zone Target Register 3 (ZT3)

Address 0x73, Default Value 0x66

MSB

LSB

Bit 1

Data

Bit 2

Data

Bit 3

Data

Bit 4

Data

Bit 5

Data

Bit 6

Data

N/A

Bit 0

Data

Zone Target Register 4 (ZT4)

Address 0x74, Default Value 0x7F

MSB

LSB

Bit 1

Data

Bit 2

Data

Bit 3

Data

Bit 4

Data

Bit 5

Data

Bit 6

Data

N/A

LM3530

www.ti.com

SNVS606L – JUNE 2009 – REVISED DECEMBER 2014

Figure 48. Zone Target Registers

Table 11. Zone Boundary and Zone Target Default Mapping

ZONE BOUNDARY

ZONE TARGET

FULL-SCALE

LINEAR MAPPING

EXPONENTIAL

(DEFAULT)

CURRENT

(DEFAULT)

MAPPING

(DEFAULT)

Boundary 0,

0x19

19 mA

19.69% (3.74 µA)

0.336% (68.4 µA)

Active ALS input is less than 200 mV

Boundary 1,

0x33

19 mA

40.16% (7.63 µA)

1.43% (272 µA)

Active ALS input is between 200 mV and

400 mV

Boundary 2,

0x4C

19 mA

59.84% (11.37 mA)

5.78% (1.098 mA)

Active ALS input is between 400 mV and

600 mV

Boundary 3,

0x66

19 mA

80.31% (15.26 mA)

24.84% (4.72 mA)

Active ALS input is between 600 mV and

800 mV

Boundary 4,

0x7F

19 mA

100% (19 mA)

Active ALS input is greater than 800mV

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