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3.13 LCD Back-light Illumination
LCD backlight LEDs is controlled by DBB via AAT2807, U402.
WHITE/FLASH LED LDO
VBAT
2V8_VEXT
C406
1u
R414
NA
R410
C_FLASH
1.5K
LCD_DIM_CTL
R411
R413
NA
7.5K
Figure 3-31. MAIN LCD BACKLIGHT ILLUMINATION
4
VIN
VOUT_FL
VOUT_BL
U402
AAT2807AIXN-4.5
9
GND
17
PGND
16
EN_FLSH
ISINK1
ISINK2
10
EN_SET
ISINK3
3. TECHNICAL BRIEF
3
FB400
13
FB403
8
NC
5
MLED1
6
MLED2
7
MLED3
- 45 -
R409
22
FLASH_LED
MLED
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