LG -P940 Service Manual page 50

3.8.3.1 Charging control
P940 uses individual Charger IC which is RT9524.
Features
30V Maximum Rating for DC Adapter
Internal Integrated Power MOSFETs
Support 4.2V/2.3A Factory Mode
50mA Low Dropout Voltage Regulator
Status Pin Indicator
Programmed Charging Current
Under Voltage Lockout
Over Voltage Protection
Thermal Feedback Optimized Charge Rate
RoHS Compliant and Halogen Free
Typical Application Circuit
Adapter or USB o
Adapter or USB o
LGE Internal Use Only
VIN
C
IN
BATT PGB
ISET
R
IEOC
ISET
R
IEOC
RT9524
10
BATT
C
OUT
CHGSB
LDO
EN/SET
(Exposed Pad)
GND
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3. TECHNICAL BRIEF
BATT
Only for training and service purposes