NV-U74
NV-U74
18
18
5-3. BLOCK DIAGRAM - POWER SUPPLY Section -
CHARGE CONTROL
IC3003
VBUS
D3016
D3007
D4005
Q4003
BAT3001
LITHIUM ION
BATTERY
VDD_2.85V
BU3V
VOLTAGE DETECT
Q3018
VOLTAGE DETECT
Q3128
SYS3V
B+ SWITCH
Q3007, 3008
MA+B
VDD_3.0V
VDD_RTC
D3003
D3023
D3004
D3006
D3009
D3005
D3014
B+ SWITCH
Q3003-1
B+ SWITCH
Q30026
CHRG+B
B+ SWITCH
Q3003-2
D0101
−
+
DC IN
5-5.2V
J3001
POWER CONTROL
IC3002
PWR_CORE
LCD3.2V
B+ SWITCH
Q3009, 3010,
3013, 3014
BU3V2
SYS3.2V
PWR1.1V
PWR1.3V
XACC_IN_HUB
D4002
CHG
BATT_CHK
USB_XCHGON, USB_HPWR, XACC_IN_HUB
CPU
IC1001 (3/3)
F3001
FB3025
CHARGE CURRENT
CONTROL SWITCH
Q3004, 3005
POWER OFF
SWITCH
Q3021
B+ SWITCH
Q3006
S3002
RESET
S3004
I/
POWER SWITCH
DETECT
Q3024
POWER CONTROL
Q3023
CHARGING
(RED)
D4006
CHG
FULL CHARGE
(GRN)
USB_HPWR
USB_XCHGON
OFF
ON
SYS5V
SWITCHING
Q3011, 3012
LED DRIVE
Q3016, 3017
D9101, 9103
TOUCH PANEL
SWITCH
BACK LIGHT
D3021
Содержание NV-U74
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