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4. Trouble Shooting
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4.5 Charging Trouble
• Charging method : CC-CV
• Switch-off voltage : 3.35V
• Charger detect voltage : about 4.0V
• Charging temperature ADC range
• Charging time : 3h under
- ~ -20˚C : small charging operation.
• Charging current : 500mA
- -5˚C ~ 45˚C : charging.
• Cutoff current : 100mA
- 60˚C~ : not charging operation small charging operation.
• Low battery alarm
-. Idle : 3.62V
-. Dedicated : 3.50V
1) Under very low temperature, battery capacity will be reduced. That can cause charging fauilure.
LGE recommends charging within -5˚C ~ 45˚C.
2) Under very low temperature, battery voltage will change rapidly. It’s natural property of Li-Ion
battery.
Charging Procedure
• Plug TA & detect charger
• Control the charging by _CHG_EN signal from S-GOLD2. When the mobile is turned-off, that signal
fixed as “LOW”
• Charging Current flows into the Battery
Check Points
• Connection of TA (check TA voltage 4.8V)
• Charging Current Path component voltage drop
• Battery voltage
3.69V~3.62V
4.2V~3.86V
3.85V~3.75V
3.75V~3.69V
100K
R218
C241
1u
BAT
10
CRDL
1
8
GND
ICDL
9
6
IMIN
PGND
11
2
USB
USBON
7
4
_CHG
_EN
5
_PPR
3
ISL6299
U207
R222
10K
R216
VCHG
VBUS_USB
10K
39K
R217
R214
100K
1u
C242
100K
R221
C243
1u
VBAT
2V72_IO
_CHG_EN
CHG_EOC
Содержание Chocolate KE800
Страница 1: ...Service Manual Model KE800 Service Manual KE800 Date January 2007 Issue 1 0 ...
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Страница 26: ...4 Trouble Shooting 27 Touch pad driver LDO LCD connector Charge pump IC Figure 4 4 Sub PCB Top ...
Страница 82: ...6 SW Download 83 KE800 KE800P40 7 V10g 9 Download complete ...
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Страница 96: ... 97 8 PCB LAYOUT ...
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Страница 107: ... 108 8 PCB LAYOUT ...
Страница 109: ... 110 9 CALIBRATION 9 2 Calibration procedure 9 2 1 Turn on the Phone 9 2 2 Execute HK_24 exe 9 2 3 Click SETTING Menu ...
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Страница 141: ...Note ...
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