AAT4625
USB Single-Channel Power Switch
Application Circuits
Ferrite Beads
7
6,8
4,5
IN
OUT
NC
VBUS = 5.0V
VBUS
AAT4625
CIN
R1
D+
COUT1
COUT2
0.1μF 100kΩ
0.1μF
120μF
2
1
D-
FLG
EN(EN)
GND
3
USB Controller
Error Flag
On/Off
DATA
Figure 7: Typical USB Host Port Application.
V
5.0V
cc
4.50V to 5.25V
Upstream VBUS
100mA Maximum
100kΩ
USB Port
VBUS
D+
3.3V USB Controller
AAT4625
AAT3220-3.3
Ferrite Beads
EN
VIN
OUT
IN
ON/OFF
VBUS
D+
IN
OUT
GND
Over-Current
Flag
FLG
GND
GND OUT
NC NC
120μF
0.1μF
D-
D-
1μF
1μF
GND
GND
Data
Data
Figure 8: Self-Powered Single Port USB Hub.
100kΩ
USB Host
USB Port
VBUS
D+
3.3V USB Controller
AAT4625
AAT3220-3.3
Ferrite Beads
EN
VIN
OUT
IN
ON/OFF
VBUS
D+
IN
OUT
GND
Over-Current
FLG
Flag
GND
GND OUT
NC NC
120μF
0.01μF
D-
D-
1μF
1μF
GND
GND
Data
Data
Figure 9: USB Bus Powered Single Port USB Hub.
12
4625.2006.04.1.2
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
