AS3820 datasheet(16/52 Pages) DIALOG

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AS3820

16-Channel White LED Controller for LCD Backlight

Rev. 1.1

Datasheet

www.dialog-semiconductor.com

16 of 52

05-Feb-2019

Addr: 0x04

GPIO_CTRL

Bit

Bit Name

Default

Access

Bit Description

7:6

xFAULT_config

Output configuration pin xFAULT:

00...Open Drain

01...Push/Pull

10...Hi-Z, input only

11...No effect

5:4

Mode3D_config

Output configuration pin Mode3D:

00...Open Drain

01...Push/Pull

10...Hi-Z, input only, SHORT COMP 2

INPUT enabled

11...No effect

Mode3D

0...Pin Mode3D = 0

1...Pin Mode3D = 1

2:1

DCDCEN_config

Output configuration pin DCDCEN:

00...Open Drain

01...Push/Pull

10...Hi-Z, input only, SHORT COMP 1

INPUT

enabled

11...No effect

DCDCEN

0...Pin DCDCEN = 0

1...Pin DCDCEN = 1

Table 4: FB_SEL1

Addr: 0x05

FB_SEL1

Bit

Bit Name

Default

Access

Bit Description

7:0

Fb_sel_1 – Fb_sel_8

00000000

Select FB-channel for current outputs 1 to 8

0...Select FB channel FB1 and

short-comparator group 1

1...Select FB channel FB2 and

short-comparator group 2

Table 5: FB_SEL1

Addr: 0x06

FB_SEL2

Bit

Bit Name

Default

Access

Bit Description

7:0

Fb_sel_9 – Fb_sel_16

00000000

Select FB-channel for current outputs 9 to 16

0...Select FB channel FB1 and

short-comparator group 1

1...Select FB channel FB2 and

short-comparator group 2

Table 6: FB_SEL2

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