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Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
6. CIRCUIT DIAGRAM
R4706
220
U4700
BQ24296GRER
21
5
20
11
14
10
17
15
16
2
23
22
18
24
12
1
6
25
19
13
9
8
7
4
3
PG
STAT
IN
T
OT
G
CE
BAT1
SW
1
PPAD
SDA
VBUS1
QO
N
VBUS2
PGND2
REG
N
PMI
D
PSEL
SYS2
SYS1
PGND1
ILIM
BAT2
TS
SW
2
SCL
BTST
L4700
2.2u
R9013
0
15K
R4709
47n
C4705
0.1u
C4708
0.1u
C4709
10
K
R4703
10
K
R4700
+1V8_VREG_S3A
VBAT
R9106
120
+VPWR
R9107
4.7K
TOL=0.0
5
CN9100
KQ03L3-4R
EAG63530401
4
3
2
1
D1
D2
D9100
R9105
18K TOL=0.01
33n
C9105
10u
C9101
DNI
C9104
33p
C9100
TOL=0.01
R9104
110K
2
1
47p
C9103
R9108
DNI
R9102
10m
TOL=0.0
1
C9102
100u
ZD9100
1
2
VA9100
CHG_SYSON_USBIN
+5V0_OTG_OVP
1u
C4702
10
K
R4704
10u
C4710
R4708
10K
TOL=0.0
1
DNI
R4705
R4701
10
K
10
K
R4702
10K
R4707
10u
C4704
4.7u
C4703
CHG_SYSON_USBIN
C4706
22u
U4800
MAX17048
B4
A4
B3
A3
B2
A2
B1
A1
CTG
SDA
CELL
SCL
VDD
QSTRT
GND
ALRT
4.7K
R4801
100n
C4800
C4801
1u
R4800
330K
+1V8_VREG_S3A
GAUGE_I2C_SDA
GAUGE_I2C_SDA
GAUGE_I2C_SCL
GAUGE_I2C_SCL
VBAT_SENSE
VREF_BAT_THERM
VCELL
VCELL
VBAT_SENSE_N
VCELL
VBAT_SENSE_N|VCELL
VBAT_SENSE_P
VBAT_SENSE_P|VBAT
VBAT
VBAT_THERM
BAT_ID
BAT_ID_PULLUP
EXT_CHG_INT
EXT_CHG_EN
EXT_CHG_PG
EXT_CHG_STAT
BATT_TEMP_CELL1
BATT_TEMP_CELL1
FUEL_GAUGE_INT
SINGLE charger IC
REVB
12/11
12/11
Rev_0.3
10/11
<4-7-2-4_Charger_Switching_BQ24192>
REVB
Iin_max = 2.2A
Use the TVS diode of VR=5V, when TVS diode have to use for ESD
2. Over 100uF totally on Vbat line
1. Over 47uF around the bat connector
MC-C00073-15 : Apply to large capacity around the bat connector
(DGMS Guide)
(DGMS Guide)
MC-C04766-5 :
3. Thermistor, temperature pheri.
2. Device ADC
1. PCB rev
Use F(1%) grade component
<9-1-2_Battery_CNT_4P>
Routing Width 2mm
REV.0.5
Line Width must be over the 3mm.
Main GND Line.
VBAT
Therm
It will be changed the value : 10mohm -> 2mohm
Have to check pin map
9/3
tuning point
ILIM : set the maximum input current limit
OTG : PSEL HIGH & OTG HIGH IIN LIMIT 500mA OTG LOW IIN LIMIT 100mA
STAT Low : charge in progress High : complete
PSEL High : USB host source Low : adapter source
2m
m
should be placed close to the IC
VBUS above 6V : 1uF ; below 6V : 4.7uF
CLOSE TO Battery CONNECTOR
REV.B
Only use line VBAT1 from Battery Connector.
Don't use Board GND
Use line GND From Battery GND Pin#3
Rev_0.3
<4-8-1_Fuel_Gauge_MAX17048>