LG G5200, Service Manual

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LDO block
There are 6 LDOs in the ADP3408
Table 3-6.
Battery charging block
It can be used to charge Lithium Ion and/or Nickel Metal Hydride batteries. G5200 use Li-Ion battery
only. Charger initialization, trickle charging, and Li-Ion charging control are implemented in
hardware.
Charging Process
Check charger is inserted or not
If ADP3408 detects that Charger is inserted, the CC-CV charging starts.
Exception: When battery voltage is lower than 3.2V, the precharge (low current charge mode) starts
firstly.
And the battery voltage reach to 3.2V the CC-CV charging starts.
Pins used for charging
CHARGERDETECT: Interrupt to AD6522 when charger is plugged.
CHARGEEN: Control signal from AD6522 to charge Li+ battery
EOC: Interrupt to AD6522 when battery is fully charged
GATEIN: Control signal from AD6522 to charge NiMH battery. But, not used.
MVBAT: Battery voltage divider. Divide ratio is 1:2.3 and it is sensed in AD6521 AUX_ADC
TA (Travel Adaptor)
Input voltage: AC 85V ~ 260V, 50~60Hz
Output voltage: DC 5.2V ( ±0.2 V )
Output current: Max 850mA ( ±50mA )
Battery
Li-ion battery (Max 4.2V, Nom 4.0V)
Standard battery : Capacity - 750mAh, Li-ion
3. TECHNICAL BRIEF
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Description
VSIM 2.86 V (is provided to SIM card)
VCORE 2.45 V (is provided to the AD6522 & AD6521’s digital core)
VRTC 2.45 V (is provided to the RTC and Backup Battery)
VAN 2.45 V (is provided to the AD6521 I/O and used as microphone bias)
VTCXO 2.715 V (is provided to VCTCXO)
VMEM 2.80 V (is provided to Flash)