LP5526TLSLASHNOPB datasheet(31/41 Pages) TI1

31 / 41 page

LP5526

www.ti.com

SNVS431D – FEBRUARY 2006 – REVISED MARCH 2013

CONTROL REGISTER (00H) – RGB LEDS CONTROL REGISTER

RGB_PWM

EN_RGB

CC_SW

RSW

GSW

BSW

RW - 0

RW - 1

R - 0

RW - 0

R - 0

0 - Internal RGB PWM control disabled

RGB_PWM

Bit 7

1 - Internal RGB PWM control enabled

0 – RGB outputs disabled

EN_RGB

Bit 6

1 – RGB outputs enabled

0 – Constant current sink mode

CC_SW

Bit 5

1 – Switch mode

0 – RLED disabled

RSW

Bit 3

1 – RLED enabled

0 – GLED disabled

GSW

Bit 2

1 – GLED enabled

0 – BLED disabled

BSW

Bit 1

1 – BLED enabled

RGB (01H) – RGB COLOR AND BRIGHTNESS CONTROL REGISTER

COLOR[3:0]

BRIGHT[2:0]

OVL

RW - 0

COLOR[3:0]

Bits 7-4

PWM color for RGB outputs

BRIGHT[2:0]

Bits 3-1

PWM brightness control for RGB outputs

0 – Overlapping mode disabled

OVL

Bit 0

1 – Overlapping mode enabled

RGB MAX CURRENT (02H) – MAXIMUM RGB CURRENT CONTROL REGISTER

SAFETY_SET

IR[1:0]

IG[1:0]

IB[1:0]

R - 0

RW - 0

0 – safety function not activated

SAFETY_SET

Bit 7

1 – safety function activated

IR[1:0]

Bits 5-4

RLED maximum current

IG[1:0]

Bits 3-2

GLED maximum current

IB[1:0]

Bits 1-0

BLED maximum current

Table 13. Maximum Current for RGB driver

IR,IG,IB[1:0]

Maximum Output Current

0.25 × IMAX

0.50 × IMAX

0.75 × IMAX

1.00 × IMAX

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