Datasheet

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
SLVS401 − AUGUST 2001
16
www.ti.com
APPLICATION INFORMATION
DP1
DM1
D+
D−
GND
5 V
68 µF
DP2
DM2
D+
D−
GND
5 V
68 µF
A
B
C
D
SN75240
EN1
EN2
OC
3.3 V_OUT
VIN
OUT1
OUT2
PWRON1
PWRON2
OVRCUR
GND
GND
XTAL2
XTAL1
1.5 kΩ
6 MHz
33 pF
33 pF
VCC_3.3 V
0.1 µF
0.1 µF
10 µF
1.5 kΩ
A
B
C
D
SN75240
D+
D−
GND
5 V
DP0
DM0
0.1 µF
10 µF
Upstream Port USB Hub Controller Downstream Port
TPS2149
DP3
DM3
DP4
DM4
D+
D−
GND
5 V
68 µF
D+
D−
GND
5 V
68 µF
A
B
C
D
SN75240
Figure 17. Example of a Two Port Hub Design With TPS2149