USB DOWN STREAM
USB DOWN STREAM
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
USB2.0 jack
2015-04-27
13
K2L
+5V_USB_1
D4303
5V
C4311
10uF
10V
D4300
USB_DIODE_TOSHIBA
D4301
5V
R4307
2.2
D4302
DF3D6.8MS
USB_DIODE_TOSHIBA
USB_DP2
JP4300
JP-BLOCK-USB
VBUS
DM
DP
GND
D4300-*1
USB_DIODE_SEMTECH
R4308
2.2
C4310
10uF
10V
D4302-*1
USB_DIODE_SEMTECH
+5V_USB_2
USB_DM2
USB_DP1
R4309
2.2
R4306
2.2
C4322
10uF
10V
JP4301
JP-BLOCK-USB
VBUS
DM
DP
GND
C4323
10uF
10V
USB_DM1
JK4300
3AU04S-385-ZC-(LG).
USB2.0_FREEPORT_MAIN
1
2
3
4
5
JK4302
US-04A-VSD
USB-STRAIGHT
1
2
3
4
5
C4301
0.1uF
16V
+3.3V_NORMAL
+5V_USB_2
IC4300
BD2242G
EAN62871401
3
EN
2
GND
4
OC
1
VIN
6
VOUT
5
ILIM
USB_CTL1
/USB_OCD1
R4303
4.7K
/USB_OCD2
+5V_NORMAL
R4301
10K
+5V_USB_1
IC4301
BD2242G
EAN62871401
3
EN
2
GND
4
OC
1
VIN
6
VOUT
5
ILIM
R4300
10K
USB_CTL2
R4302
4.7K
+3.3V_NORMAL
R4305
14K
1/16W
1%
+5V_NORMAL
C4300
0.1uF
16V
R4304
14K
1/16W
1%
USB2.0 PORT:3
USB2.0 PORT2
MAX 1.5A
MAX 1.5A
USB2.0 2Port
(ANGLE 1.6T)
(STRAIGHT)
OCP USB2.0 PORT3
value change
10K(2.63V) --> 4.7K(2.97V)
OCP Current Limit
ROHM : 14Kohm
value change
10K(2.63V) --> 4.7K(2.97V)
OCP Current Limit
OCP USB PORT2
ROHM : 14Kohm
Copyright © 2016 LG Electronics Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
Summary of Contents for EA71G
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