LP3954TLSLASHNOPB datasheet(45/58 Pages) TI2

45 / 58 page

LP3954

www.ti.com

SNVS340D – JUNE 2005 – REVISED MARCH 2013

EXT_PWM_CONTROL (07H) – EXTERNAL PWM CONTROL REGISTER

wled1_4_pwm

wled5_6_pwm

r1_pwm

g1_pwm

b1_pwm

r2_pwm

g2_pwm

b2_pwm

rw-0

0 – WLED1…WLED4 PWM control disabled

wled1_4_pwm

Bit 7

1 – WLED1…WLED4 PWM control enabled

0 – WLED5, WLED6 PWM control disabled

wled5_6_pwm

Bit 6

1 – WLED5, WLED6 PWM control enabled

0 – R1 PWM control disabled

r1_pwm

Bit 5

1 – R1 PWM control enabled

0 – G1 PWM control disabled

g1_pwm

Bit 4

1 – G1 PWM control enabled

0 – RB PWM control disabled

b1_pwm

Bit 3

1 – B1 PWM control enabled

0 – R2 PWM control disabled

r2_pwm

Bit 2

1 – R2 PWM control enabled

0 – G2 PWM control disabled

g2_pwm

Bit 1

1 – G2 PWM control enabled

0 – B2 PWM control disabled

b2_pwm

Bit 0

1 – B2 PWM control enabled

WLED CONTROL (08H) – WLED CONTROL REGISTER

slope

fade_sel

en_fade

displ

en_w1_4

en_w5_6

r-0

rw-0

0 – fade execution time 1.3 sec

slope

Bit 5

1 – fade execution time 0.65 sec

0 – fade control for WLED1… WLED4

fade_sel

Bit 4

1 – fade control for WLED5, WLED6

0 – automatic fade disabled

en_fade

Bit 3

1 – automatic fade enabled

0 – WLED1-4 and WLED5-6 are controlled separately

displ

Bit 2

1 – WLED1-4 and WLED5-6 are controlled with WLED1-4 controls

0 – WLED1…WLED4 disabled

en_w1_4

Bit 1

1 – WLED1…WLED4 enabled

0 – WLED5,WLED6 disabled

en_w5_6

Bit 0

1 – WLED5,WLED6 enabled

WLED1-4 (09H) – WLED1…WLED4 BRIGHTNESS CONTROL REGISTER

wled1_4[7:0]

rw-0

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