LP5523 datasheet(19/56 Pages) TI1

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LP5523

www.ti.com

SNVS550D – SEPTEMBER 2009 – REVISED MAY 2013

Table 3. Control Register Map (continued)

Hex

Read/

Default Value

Bit(s)

Bit Mnemonic and Description

Address

Write

After Reset

D8_RATIO_EN

[7]

R/W

0xxxxxxx

Enables ratiometric dimming for D8 output.

D7_RATIO_EN

[6]

R/W

x0xxxxxx

Enables ratiometric dimming for D7 output.

D6_RATIO_EN

[5]

R/W

xx0xxxxx

Enables ratiometric dimming for D6 output.

D5_RATIO_EN

[4]

R/W

xxx0xxxx

OUTPUT

Enables ratiometric dimming for D5 output.

DIRECT/RATIOMETRIC

D4_RATIO_EN

LSB

[3]

R/W

xxxx0xxx

Enables ratiometric dimming for D4 output.

D3_RATIO_EN

[2]

R/W

xxxxx0xx

Enables ratiometric dimming for D3 output.

D2_RATIO_EN

[1]

R/W

xxxxxx0x

Enables ratiometric dimming for D2 output.

D1_RATIO_EN

[0]

R/W

xxxxxxx0

Enables ratiometric dimming for D1 output.

OUTPUT ON/OFF

D9_ON

[0]

R/W

xxxxxxx1

CONTROL MSB

ON/OFF Control for D9 output

D8_ON

[7]

R/W

1xxxxxxx

ON/OFF Control for D8 output

D7_ON

[6]

R/W

x1xxxxxx

ON/OFF Control for D7 output

D6_ON

[5]

R/W

xx1xxxxx

ON/OFF Control for D6 output

D5_ON

[4]

R/W

xxx1xxxx

ON/OFF Control for D5 output

OUTPUT ON/OFF

CONTROL LSB

D4_ON

[3]

R/W

xxxx1xxx

ON/OFF Control for D4 output

D3_ON

[2]

R/W

xxxxx1xx

ON/OFF Control for D3 output

D2_ON

[1]

R/W

xxxxxx1x

ON/OFF Control for D2 output

D1_ON

[0]

R/W

xxxxxxx1

ON/OFF Control for D1 output

MAPPING

[7:6]

R/W

00xxxxxx

Mapping for D1 output

LOG_EN

D1 CONTROL

[5]

R/W

xx0xxxxx

Logarithmic dimming control for D1

TEMP COMP

[4:0]

R/W

xxx00000

Temperature compensation control for D1 output

[7:6]

R/W

00xxxxxx

MAPPING Mapping for D2 output

LOG_EN

[5]

R/W

xx0xxxxx

D2 CONTROL

Logarithmic dimming control for D2 output

TEMP COMP

[4:0]

R/W

xxx00000

Temperature compensation control for D2 output

[7:6]

R/W

00xxxxxx

MAPPING Mapping for D3 output

LOG_EN

[5]

R/W

xx0xxxxx

D3 CONTROL

Logarithmic dimming control for D3 output

TEMP COMP

[4:0]

R/W

xxx00000

Temperature compensation control for D3 output

[7:6]

R/W

00xxxxxx

MAPPING Mapping for D4 output

LOG_EN

[5]

R/W

xx0xxxxx

D4 CONTROL

Logarithmic dimming control for D4 output

TEMP COMP

[4:0]

R/W

xxx00000

Temperature compensation control for D4 output

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