LG KG280 Service Manual - Page 26
Technical Brief, Charging, Normal
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3. TECHNICAL BRIEF PRE_CHARGE_R VCHARGE C224 0.1u R211 0 VBAT PRE CHARGING ECCH0000182 R214 Q201 1K 12 3 65 4 R215 1.5K R217 10K UMX1NTN R216 7.5K INDLED_R R218 10K 10V Under ECCH0004904 ECCH0005704 10V Over NORMAL CHARGING C225 1u GATEDRV ISENSE VBAT VCHARGE R212 D200 0.2 CUS02 R213 330 Q200 4G S 5 D3 D4 3 D2 D5 6 2 1 D1 D6 7 8 C223 4.7u TPCF8102-TE85L-F Figure 3-6. CIRCUIT FOR BATTERY CHARGING Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 27 - LGE Internal Use Only
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- 27 -
3. TECHNICAL BRIEF
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc.
All right reserved.
Only for training and service purposes
R214
1K
R216
7.5K
R211
0
C224
ECCH0000182
0.1u
R217
10K
10K
R218
1.5K
R215
4
VCHARGE
2
5
6
3
1
VBAT
UMX1NTN
Q201
PRE_CHARGE_R
INDLED_R
10V Under
10V Over
D1
1
2
D2
3
D3
6
D4
7
D5
8
D6
4
G
5
S
TPCF8102-TE85L-F
Q200
R213
330
4.7u
C223
ECCH0005704
ECCH0004904
C225
1u
VCHARGE
CUS02
D200
VBAT
R212
0.2
GATEDRV
ISENSE
Figure 3-6. CIRCUIT FOR BATTERY CHARGING
PRE
CHARGING
NORMAL
CHARGING