Datasheet

www.ti.com
DP1
DM1
DP2
DM2
DP3
DM3
PWRON1
OVRCUR1
PWRON2
OVRCUR2
PWRON3
OVRCUR3
DP0
DM0
V
CC
XTAL1
XTAL2
OCSOFF
SN75240
D +
D -
5 V
GND
D +
D -
5 V
D +
D -
5 V
48-MHz
Crystal
Downstream
Ports
TUSB2040
Hub Controller
Tuning
Circuit
A
B
C
D
47 µF
†
1/2 SN75240
A
B
C
D
GND
GND
47 µF
†
47 µF
†
D +
D -
Upstream
Port
TPS2041B
1/2 SN75240
A
B
5 V
GND
C
D
1 µF
IN
GND
Ferrite Beads
Ferrite Beads
Ferrite Beads
BUSPWR
GANGED
Tie to TPS2041B EN Input
OC EN
OUT
5-V Power
Supply
IN
GND
3.3 V
4.7 µF
0.1 µF
4.7 µF
EN1
IN1
OC1
OUT1
TPS2047B
EN2
OC2
OUT2
0.1 µF
0.1 µF
GND
†
USB rev 1.1 requires 120 µF per hub.
OUT3
EN3
OC3
IN2
GND
GND
TPS76333
TPS2045B , TPS2055B
TPS2046B , TPS2047B
SLVS532C – JULY 2004 – REVISED OCTOBER 2007
Figure 27. Hybrid Self / Bus-Powered Hub Implementation, TPS2047B
Copyright © 2004 – 2007, Texas Instruments Incorporated Submit Documentation Feedback 19
Product Folder Link(s): TPS2045B TPS2055B TPS2046B TPS2047B