LG LG-D175F - Charging

3. TROUBLE SHOOTING
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Only for training and service purposes
LGE Internal Use Only
3.6 Charging
D175F uses PMIC(liner Charger) for charging control. The PMIC circuit includes the charging pass transistor detects the VDD and
VBAT voltages, and its control driver. The PMIC maximum charging current is set around 700mA.
Charging Procedure
- Supply the VCHG use a TA or u-USB cable
- The PMIC control the charging current
- Charging current ows into the main battery
Troubleshooting Check Point
- Connection of the TA or u-USB cable
- Main battery
U4100
PM8110
112
104
103
115
99
113
49
83
80
111
116
107
117
114
98
106
VCHG
USB_IN_1
USB_IN_2
VDRV_P
GND_CHG_HP_1
GND_CHG_HP_2
BATFET_CP_DRV
VBAT_SNS
VREG_IADC
AVDD_BYP
VPRE_BYP
VSW_CHG_1
VSW_CHG_2
VPH_PWR_1
VPH_PWR_2
VPH_PWR_3
0.1u
C4115
C4114
1u
VBUS_USB_IN
TP4110
470nC4113
0709_change
U4100
PM8110