Datasheet

DP1
DM1
DP2
DM2
DP3
DM3
DP4
PWRON1
OVRCUR1
PWRON2
OVRCUR2
PWRON3
OVRCUR3
PWRON4
OVRCUR4
DM4
DP0
DM0
V
CC
XTAL1
XTAL2
OCSOFF
SN75240
D +
D -
5 V
GND
D +
D -
5 V
D +
D -
5 V
D +
D -
5 V
48-MHz
Crystal
Downstream
Ports
TUSB2046
Hub Controller
Tuning
Circuit
A
B
C
D
33 µF
(see Note A)
SN75240
A
B
C
D
GND
GND
GND
D +
D -
Upstream
Port
TPS2051B
SN75240
A
B
5 V
GND
C
D
1 µF
IN
GND
Ferrite Beads
Ferrite Beads
Ferrite Beads
Ferrite Beads
BUSPWR
GANGED
Tie to TPS2051B EN Input
OC EN
OUT
5-V Power
Supply
IN
GND
3.3 V
4.7 µF
0.1 µF
4.7 µF
GND
EN
OC
IN
TPS2051B
OUT
EN
OC
IN
TPS2051B
OUT
EN
OC
IN
TPS2051B
OUT
EN
OC
IN
TPS2051B
OUT
TPS76333
0.1 µF
33 µF
(see Note A)
33 µF
(see Note A)
33 µF
(see Note A)
0.1 µF
0.1 µF
0.1 µF
TPS2041B-Q1
TPS2042B-Q1
TPS2051B-Q1
www.ti.com SLVS782B – NOVEMBER 2007– REVISED OCTOBER 2011
A. USB rev 1.1 requires 120 μF per hub.
Figure 27. Hybrid Self-Powered/Bus-Powered Hub Implementation (TPS2051B)
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Product Folder Link(s): TPS2041B-Q1 TPS2042B-Q1 TPS2051B-Q1