AAT4626_08 Datasheet, PDF (12/15 Pages) Advanced Analogic Technologies – USB Dual-Channel Power Switch

SmartSwitch^TM
Application Circuits
V_BUS = 5.0V
C_IN
0.1µF
R1
100kΩ
USB Controller
On/Off A
Error Flag A
Error Flag B
On/Off B
PRODUCT DATASHEET
AAT4626
USB Dual-Channel Power Switch
7
IN
8
OUTA
AAT4626
R2
100kΩ
1
ENA
2
FLGA
3
FLGB
4
ENB
5
OUTB
6
Ferrite Beads
C_OUT1
0.1µF
C_OUT2
120µF
V_BUS(A)
D+
D-
GND
DATA
(Port A)
Ferrite Beads
C_OUT3
0.1µF
C_OUT4
120µF
V_BUS(B)
D+
D-
GND
4.50V to 5.25V
Upstream V_BUS
100mA Maximum
V_BUS
D+
D-
GND
DATA
(Port B)
Figure 7: Typical Dual USB Host Port Application.
AAT3200-3.3
IN
OUT
GND
1µF
100kΩ
100kΩ
3.3V USB Controller
VIN
ON/OFF A
Over Current A
Over Current B
1µF
ON/OFF B
GND
V_CC
+5.0V
0.1µF
AAT4626
ENA OUTA
FLGA IN
FLGB GND
ENB OUTB
120µF
USB Port A
Ferrite Beads
V_BUS(A)
D+
0.1µF
D-
GND
Data
120µF
USB Port B
Ferrite Beads
V_BUS(B)
D+
0.1µF
D-
GND
Data A/B
(Two Pair to
USB Controller)
Figure 8: Self-Powered Dual Port USB Hub.
12
www.analogictech.com
4626.2008.02.1.3