LP5860 datasheet(16/56 Pages) TI

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channels are off and new MC data is only updated when the 'Chip_EN' bit in Chip_en register is set to 0, and

after the 'Chip_EN' returns to 1, the new MC data is effective. 'Down_Deghost' and 'Up_Deghost' in Dev_config3

work in the similar way with MC.

Table 8-1. Maximum Current (MC) Register Setting

3-BITS MAXIMUM_CURRENT REGISTER

IOUT_MAX

Binary

Decimal

000

7.5

001

12.5

010

011 (Default)

3 (Default)

37.5 (Default)

100

101

110

100

3 Groups of 7-Bits Color Current (CC) Setting

The LP5860T device is able to adjust the output current of three color groups separately. For each color, the

device has 7-bits data in 'CC_Group1', 'CC_Group2', and 'CC_Group3'. Thus, all color group currents can be

adjusted in 128 steps from 0% to 100% of the maximum output current, IOUT_MAX.

The 18 current sinks have fixed mapping to the three color groups:

• CC-Group 1: CS0, CS3, CS6, CS9, CS12, CS15.

• CC-Group 2: CS1, CS4, CS7, CS10, CS13, CS16.

• CC-Group 3: CS2, CS5, CS8, CS11, CS14, CS17.

Table 8-2. 3 Groups of 7-bits Color Current (CC) Setting

7-BITS CC_GROUP1/CC_GROUP2/CC_GROUP3 REGISTER

RATIO OF OUTPUT CURRENT TO IOUT_MAX

Binary

Decimal

000 0000

000 0001

0.79

000 0010

1.57

- - -

100 0000 (default)

64 (default)

50.4 (default)

- - -

111 1101

125

98.4

111 1110

126

99.2

111 1111

127

100

Individual 8-bit Dot Current (DC) Setting

The LP5860T can individually adjust the output current of each LED by using dot current function through DC

setting. The device allows the brightness deviations of the LEDs to adjusted be individually. Each output DC is

programmed with an 8-bit depth, so the value can be adjusted with 256 steps within the range from 0% to 100%

of (IOUT_MAX × CC/127).

Table 8-3. Individual 8-bit Dot Current (DC) Setting

8-BIT DC REGISTER

RATIO OF OUTPUT CURRENT TO IOUT_MAX × CC/127

Binary

Decimal

0000 0000

0000 0001

0.39

0000 0010

0.78

LP5860T

SNVSCE1 – MAY 2023

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