Charging Trouble - LG MG210 Service Manual

4. TROUBLE SHOOTING

4.7 Charging Trouble

• Charging method : CC-CV
• Charger detect voltage : about 5.2V
• Charging time : under 3hours
• Charging current : about 500mA
• Cutoff current : about 50mA
• Low battery alarm
- Idle : 3.50V
- Dedicated : 3.61V
4.2V~3.92V 3.91V~3.78V
Block Diagram
• Switch-off voltage : 3.35V
• Charging temperature adc range
- ~ -5°C : charging.
- -5°C ~ 50°C : charging.
- 50°C ~ : not charging operation.
3.77~3.70V
Charging Current
(1608) (1608)
VCHG
C208
R206 C209
4.7u
100K 4.7u
ICTL
PCHG
VCCS
VBATS
- 48 -
3.69V~3.62V 3.61V~3.51V
C210
22n
Q200
TPCF8102-TE85L-F
4 5
G S
3 6
D3 D4
2 7
D2 D5
1 8
D1 D6
R209 15
D200
CUS02
VBAT
R213
0.2
(2012)
C223 C224
4.7u 4.7u
(1608) (1608)
blink
3.50V~3.35V