TPS2041A, TPS2042A, TPS2043A, TPS2044A
TPS2051A, TPS2052A, TPS2053A, TPS2054A
CURRENT-LIMITED POWER-DISTRIBUTION SWITCHES
SLVS247 鈥?SEPTEMBER 2000
APPLICATION INFORMATION
TUSB2040
Hub Controller
SN75240
Upstream
Port
D+
D鈥?/div>
GND
DP2
TPS2041A
OC
5V
IN
1
碌F
EN
OUT
5 V Power
Supply
DM2
DP3
DM3
A C
B D
TPS76333
0.1
碌F
4.7
碌F
GND
IN
3.3 V
GND
4.7
碌F
VCC
DP4
DM4
5V
TPS2041A
PWRON1
OVRCUR1
EN
OC
OUT
TPS2041A
48-MHz
Crystal
XTAL1
PWRON2
OVRCUR2
EN
OC
OUT
Tuning
Circuit
XTAL2
PWRON3
OCSOFF
GND
TPS2041A
PWRON4
OVRCUR4
EN
OC
OUT
IN
0.1
碌F
Ferrite Beads
OVRCUR3
TPS2041A
EN
OC
OUT
IN
0.1
碌F
5V
33
碌F
鈥?/div>
D+
D鈥?/div>
GND
5V
33
碌F
鈥?/div>
IN
0.1
碌F
Ferrite Beads
GND
D+
D鈥?/div>
IN
0.1
碌F
33
碌F
鈥?/div>
SN75240
D+
D鈥?/div>
Ferrite Beads
GND
A C
B D
DP0
DM0
BUSPWR
GANGED
DP1
DM1
A C
B D
SN75240
Ferrite Beads
Tie to TPS2041A EN Input
Downstream
Ports
D+
D鈥?/div>
GND
5V
33
碌F
鈥?/div>
鈥?USB rev 1.1 requires 120
碌F
per hub.
Figure 29. Hybrid Self/Bus-Powered Hub Implementation, TPS2041A
24
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
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TPS2044A PDF文件相关型号
TPS2044B,TPS2047B,TPS2071,TPS2110A
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