LG NP5550B - Block Diagrams; System Block Diagram

BLUETOOTH MODULE
CSR8670
3.3 V
(IC500)
PORTABLE
Ferrite Bead
Filter
SPK
SPEAKER
FR +/ -
PTB_L/ R
FAULT
PDN/ MUTE
S.FLASH
W25Q64FV
3.3 V
(IC502)
SF_CK/ SI/ SO/ CS
USB Device
mUSB
USB_DP/ DN
Debug
SPI_CLK/ SO/ SI/
CS UART_RX/ TX
Key x 4
I2C
Analog L/ R
BATTERY
3.7 V 2100 mAh
DC 5 V
5 V
3.5 V ~ 4.3 V
3.3 V ~ 4.3 V
mUSB
RST
CP chip
Class 6
3.3 V
(IC501)
COIL
1.5 µH
PVCC
3.3V
SPK
FL +/ -
Boost
TPS61088
(IC902)
IR
MP key JIG
LED x 7
FET
(Q900)
DRIVE
PVCC
9 V / 5 V
AMP
TPA3131D2
PVCC 9 V
(IC700)
KEY
LED
RESET
RESET
DCDC
RT6150
(IC903)
PWON
COIL
1.5 µH
COIL
2.2 µH
Charger IC
BQ24262
(IC901)
S/W
BAT
VBUS
SYSTEM
FET
(Q901)
3.3 V ~ 4.3 V
PWOFF
PVCC_SW
3.3 V
TR
(Q905)
SYS_V
3.3 V
3.3 V
BAT +
SYS
BAT+SYS
BAT+
3-143-13
BLOCK DIAGRAMS
1. SYSTEM BLOCK DIAGRAM