Texas Instruments TPS25762Q1EVM-146, User Manual

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6.6 Sub Schematic – HUB
This schematic is SS4 sub-schematic of the main schematic. Figure 6-9 shows the HUB circuit of
TPS25762Q1EVM-146 and TPS25772Q1EVM-149. R141 is installed and R142 is not installed to disable the
USB mux(U12). As
Figure 6-9 shows, the DP/DM of Type-C connector are not connected to HUB, so there is no
data connection from the USB micro-B connector(J16) to port A and port B on the TPS25762Q1EVM-146 and
TPS25772Q1EVM-149.
Figure 6-10 shows the HUB circuit of TPS25772Q1EVM-150. R142 is installed and R141 is not installed to
enable the USB mux(U12). Using pins 15 and 16 of J7 on Figure 6-6 to set USB_SEL can select DP/DM of
Type-C connector to HUB or to TPS25762/72-Q1. The USB_SEL is pulled low by default, so the data lines are
connected from USB micro-B connector to the Type-C connectors of port A and port B. When pins 15 and 16 of
J7 are shorted, the TPS25762/72-Q1 is configured as firmware update mode, the USB mux will connect DP/DM
from the Type-C connector to TPS25762/72-Q1.
The HUB IC(U13) also provides a data path from USB micro-B connector to TIVA. This allows configuration,
monitoring, and firmware update through USB micro-B connector.
GND
US_D_N
US_D_P
D
+
1 2
D
-
TPD2EUSB30DRTR
3
U16
G
N
D
50V
18pF
C78
50V
18pF
C79
1.00M
R85 GND
4.7k
R92
4.7k
R91
GND
1µF
16V
C80
90.9k
R86
4.7k
R90
4.7k
R89
9.53k
R87
1
VBUS
D-
2
D+
3
4
ID
5
GND
8 7 6
1
1
1
0
9
J16
1051640001
GND
GND
GND
1D+
1
1D-
2
3
2D+
2D-
4
GND
5
OE
6
D-
7
D+
8
S
9
VCC
10
U12
VCC3V3
TS3USB221AQRSERQ1
50V
0.1uF
C77
GND
GND
PA_OC
13
8
10
NC
28
NC
40
PAD
65
4
PWRCTL1/BATEN1
3
PWRCTL2/BATEN2
1
PWRCTL3/BATEN3
64
PWRCTL4/BATEN4
9
RSVD
38
RSVD
43
RSVD
46
RSVD
51
RSVD
54
RSVD
58
RSVD
61
RSVD
24
RSVD
27
RSVD
36
RSVD
39
RSVD
44
RSVD
47
RSVD
52
RSVD
55
RSVD
59
RSVD
62
RSVD
23
RSVD
26
RSVD
35
6
SCL/SMBCLK
5
SDA/SMBDAT
17
34
USB_DM_DN1
42
USB_DM_DN2
FULLPWRMGMT/SMBA1
PWRCTL_POL
GANGED/SMBA2/HS_UP
AUTOEN/HS_SUSPEND
TEST
50
USB_DM_DN3
57
USB_DM_DN4
22
USB_DM_UP
33
USB_DP_DN1
41
USB_DP_DN2
49
USB_DP_DN3
56
USB_DP_DN4
21
USB_DP_UP
32
USB_R1
16
USB_VBUS
VDD
25
VDD
37
VDD
45
VDD
53
VDD
60
VDD
63
VDD
19
VDD33
20
31
VDD33
48
VDD33
2
VDD33
XI
30
XO
29
GRST
18
14
OVERCUR1
15
OVERCUR2
12
OVERCUR3
11
OVERCUR4
7
SMBUS
U13
TUSB4041IPAP
VCC1V1
VCC3V3
GND
VCC3V3
GND GND
VCC1V1
HUB_PA_D_P
HUB_PA_D_N
USB_SEL
BJ_D_P
BJ_D_N
HUB_TIVA_D_P
HUB_TIVA_D_N HUB_PB_D_P
HUB_PB_D_N
PA_P
PA_N
10.0k
R80
10.0k
R81
10.0k
R83
4.7k
R82
4.7k
P
R84
DN
16V
0.1µF
C81
16V
0.1µF
C82
16V
0.1µF
C83
16V
0.1µF
C84
16V
0.1µF
C85
16V
0.1µF
C86
16V
0.1µF
C87
16V
0.1µF
C88
16V
0.1µF
C89
16V
0.1µF
C90
16V
0.1µF
C91
10.0k
R88
10.0k
R118
10.0k
P
R117
DN
10.0k
P
R116
DN
10.0k
R115
P DN
10.0k
P
R113
DN
10.0k
R112
10.0k
P
R114
DN
4.7k
R107
4.7k
P
R106
DN
1
P
0.0k
DN
R111
4.7k
R105
NC
1
5
SDA
3
A2
2
A1
7
WP
GND
4
6
SCL
8
VCC
9
PAD
U11
DNP
AT24C04D-MAHM-T
GND
VCC3V3
16V
0.1µF
DNP C102
VCC3V3
GND 4.7k
R110
4.7k
R109 4.7k
R108
1
P
0.0k
R119
DN
10.0k
R120
10.0k
R104
P DN
PB_OC
VCC3V3
1
P
0.0k
R101
DN
10.0k
P
R103
DN
10.0k
P DN
R102
PA_OC
PB_OC
10.2k
R141
10.2k
DNP
R142
1
3 4
2
G
G
Y1
GND
Figure 6-9. TPS25762Q1EVM-146 and TPS25772Q1EVM-149 HUB Circuit
Schematics www.ti.com
14 TPS25762/72-Q1 EVM User's Guide SLVUC03 – NOVEMBER 2022
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