ADP5501

Rev. 0 | Page 21 of 28

Bit

Name

R/W

Description

3

BL_AUTO_AD

J

R/W

0 = ambient light sensor comparators have no effect on the backlight operating level. The user can

manually adjust the backlight operating level using the BL_LVL bits.

1 = ambient light sensor comparators automatically adjust the backlight operating level. The internal

state machine takes control of the BL_LVL bits.

2

OVP_EN

R/W

0 = soft OVP protection disabled.

1 = soft OVP protection enabled.

1

FOVR

R/W

0 = backlight fade override is disabled.

1 = backlight fade override is enabled.

0

Not used

Table 10. Register 0x03, Backlight Off and Dim Timers (BL_TIME)

Bit

Name

R/W

Description

7 to 4

BL_OFFT

R/W

Backlight off timer; the timer should be set before BL_EN is set.

0000 = the timer is disabled.

0001 = 10 sec.

0010 = 15 sec.

0011 = 20 sec.

0100 = 25 sec.

0101 = 30 sec.

0110 = 35 sec.

0111 = 40 sec.

1000 = 50 sec.

1001 = 60 sec.

1010 = 70 sec.

1011 = 80 sec.

1100 = 90 sec.

1101 = 100 sec.

1110 = 110 sec.

1111 = 120 sec.

3 to 0

BL_DIMT

R/W

Backlight dim timer; the timer should be set before BL_EN is set.

0000 = the timer is disabled.

0001 = 10 sec.

0010 = 15 sec.

0011 = 20 sec.

0100 = 25 sec.

0101 = 30 sec.

0110 = 35 sec.

0111 = 40 sec.

1000 = 50 sec.

1001 = 60 sec.

1010 = 70 sec.

1011 = 80 sec.

1100 = 90 sec.

1101 = 100 sec.

1110 = 110 sec.

1111 = 120 sec.