Lge Internal Use Only - LG -E510 Service Manual

3.10.3.2. Constant Current Charging
Once the battery voltage is higher than 2.6V, the charger enters the constant current stage. The constant
current level can be programmed from 90mA to 1A via the I2C compatible interface but the default value is
400mA.
3.10.3.3. Constant Voltage Charging
Once the battery voltage level closes in at 4.2V, the charger enters constant voltage phase and the charging
current begins to decrease. When the charging current becomes lower than IEOC (end of charge current), the
loop enters charge done mode. The RT8965 will then send an interrupt and register CHG bit, as shown in
Table 10. Finally, INT_STA2 becomes 0 to indicate that the RT8965 has completed the charging.
3.10.3.4. Recharge Phase
When any loading or event causes VBAT to drop or battery to discharge, the charger will automatically
jump to the appropriate mode to recharge the battery.
3.10.3.5. Charger for Factory Mode
The RT8965 provides factory mode for supplies up to 2.3A for powering external loads with no battery
installed and V is regulated to 4.2V. The factory mode allows the user to supply system power with no
BAT
battery connected. It is programmable by I
regulation is disabled, but thermal protection (135 C) is still active. When using currents greater than 1.5A
in factory mode, the user must limit the duty cycle at the maximum current to 20% with a maximum period
of 10ms
3.10.3.6. LGE510f Charging Specification
LGE510
-Charging Method : Pre-Charging & CC & CV (Pre-Charging &Constant Current & Constant Voltage)
-Maximum Charging Voltage : 4.2V
-Maximum Charging Current : 700mA
-Nominal Battery Capacity : 1500mAh
-Charging time : Max. 3h 30m
- Full charge indication current (icon stop current) : 89mA

LGE Internal Use Only

C via the PTM bit, as shown in Table 13. In factory mode, thermal
2
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3. TECHNICAL BRIEF
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