LG Electronics 640T-ZA +5VUSB FOR USB1, USB2 MAX 1.5A, USB3 MAX 1.5A, From SoC, Usbwifi, MAX 0.4A

+5V_USB FOR USB1

MAX 2A

POWER_ON/OFF2_4

R4328

10K

-*1

C4327

0.1uF

D4304

SX34

40V

+24V

16V

16V

C4329

IC4305

L4308

0.1uF

6.8uH

0

R4330

TPS54331D

L4305

D4304

SMAB34

BLM18PG121SN1D

BOOT

1

8

PH

40V

C4333

C4336

22uF

0.1uF

10V

16V

VIN

2

7

GND

C4324

C4326

EN

COMP

10uF

0.1uF

3

6

35V

50V

3A

1%

820

R4343

SS/TR

VSENSE

C4332

C4334

OPT

330K R4329

4

5

47pF

4700pF

50V

50V

R1

/USB_OCD1

USB_CTL1

+3.3V_NORMAL

R4327	R4323
10K
	10K
OPT

GND

1

IN_1

2

IN_2

3

ILIM_SEL

4

EN

5

IC4303

TPS2554

THERMAL 11

	[EP]
10	FAULT
9	OUT_2
8	OUT_1						C4323
							10uF
7	ILIM0						10V
6	ILIM1
					R4300		1/10W
		OPT R4341	27K	1/10W		27K

USB1

DVR Ready MAX 1.8A

3AU04S-305-ZC-(LG) JK4303

1

	C4328					R4336				R4338	OPT
	0.01uF					20K		1%	10K		C4338
	50V										1000pF
											50V
Vout=0.8*(1+R1/R2)							R2	1%	2K	R4339
						R4332
		IC4306				10K		POWER_ON/OFF2_4
	[EP]GND SN1104041,			DC-DC+2CH	USB SW
						C4300
						0.1uF
+12V						16V
	V7V				EN
		24		1
C4341	AGND_3	25	THERMAL		COMP	R4342
4.7uF						10K

USB_DM1

USB_DP1

+3.3V_NORMAL

		2		STREAM
OPT	RCLAMP0502BA D4303	4 3	5	USB DOWN

L4306

10V

23

SN1104041

2

BLM18PG121SN1D

5%

C4340

USB_DCDC_SN1104041

VIN_2

SS

C4340-*1

22

3

C4342

4700pF

0.01uF

100pF

50V

50V

50V

USB_DCDC_BD86180

C4325

VIN_1

4

ROSC

21

10uF

USB_DCDC_SN1104041

16V

PGND_2

EN_SW2

5

20

PGND_1

6

EN_SW1

19

_

+5V_USB

BST

DCDC

7

NFAULT2

C4331

18

L4307

0.1uF

3.6uH

LX_2

NFAULT1

16V

8

17

DEV_USB_DCDC_BD86180

IC4306-*1

C4337

C4301

+5V_USB_3

BD86180MUV

[EP]GND

LX_1

USB_

SW_OUT2

EN

1

24

VREG

22uF

22uF

16

9

THERMAL 25

COMP

2

23

GND_3

10V

10V

SS

3

22

VIN_2

SW_IN_3

AGND_1

RT

4

21

VIN_1

10

15

CTL2

5

20

PGND_2

CTL1

6

19

PGND_1

FLG2

7

18

BST

SW_IN_2

AGND_2

+5V_USB_2

FLG1

8

17

SW_2

14

11

USB_OUT2

9

16

SW_1

GND_1

10

15

USB_IN_3

SW_IN_1

SW_OUT1

GND_2

11

14

USB_IN_2

13

12

USB_OUT1

12

13

USB_IN_1

R4301 10K

R4302 10K

R4303 10K

OPT	10K
	R4304

OPT

USB_CTL2

/USB_OCD2

USB_DM2

USB_DP2

+5V_USB_2

C4322

10uF

10V

USB2

MAX 1.5A

3AU04S-305-ZC-(LG) JK4302

		1
		2		STREAM
OPT	RCLAMP0502BA D4302	4 3	5	USB DOWN

ESD for MTK	ESD for LG1152
	LG1152	RCLAMP0502BA D4300-*2
	ESD

+5V_USB_3

C4310

10uF

10V

USB3

MAX 1.5A

3AU04S-305-ZC-(LG) JK4300

		1
		2		STREAM
OPT	RCLAMP0502BA D4300	4 3	5	USB DOWN

	LG1152	RCLAMP0502BA D4302-*1
	ESD
LG1152	RCLAMP0502BA	D4303-*3
ESD

THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR

THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.

From SoC

USB_DM3

USB_DP3

USB_CTL3WIFI_DM

/USB_OCD3

WIFI_DP

USB_WIFI

+5V_USB

L4302 WIFI120-ohm

BLM18PG121SN1D
					C4339
C4319				C4321		MAX 0.4A
16V			0.1uF	10uF	10uF
0.1uF			C4320
WIFI			16V	10V	10V
			WIFI	WIFI	WIFI			P4301
	For	EMI						12507WR-04L
								WIFI
							VDD
								1
							DM
								2
							DP
								3
							GND
								4
							5
							.

USB3_HUB_WiFi 2011.10.26

43

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Only for training and service purposes