Lcd Backlight, Flash Led Charge Pump - LG KG800 Service Manual

3. TECHNICAL BRIEF

3.16 LCD BACKLIGHT, FLASH LED CHARGE PUMP

(AAT2807AIXN-4.5-T1, SLIDE PCB U100)
R109
C_FLASH
R102 330
LCD_DIM_CTRL
C101
C100
1u
1u
VBAT
4
VIN
C103
22u
9
GND
17
PGND
1.5K
16
EN_FLSH
10
EN_SET
U100
AAT2807AIXN-4.5
R107 R108
7.5K 7.5K
Figure 3-30. CHAGE PUMP
C102
1u
3
VOUT_FL
13
VOUT_BL
8
NC
5
ISINK1
6
ISINK2
7
ISINK3
C105 C106
C104
27p 1u 1u
- 52 -
FB100
FLASH_LED
FB101
MLED
MLED1
MLED2
MLED3
C107
27p