Philips Universal Serial Bus ISP1122 Specification Sheet page 26

Universal serial bus stand-alone hub
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Philips Semiconductors
handbook, full pagewidth
POWER SUPPLY
4.85 V(min)
V CC
GND
100
to
1 k
INDV
SP/BP
OPTION
Power switches 1 to 5 are low-ohmic PMOS devices as specified in
Fig 10. Mode 5: self-powered hub; individual port power switching; individual overcurrent detection.
9397 750 07002
Product specification
4.85 V(min)
5 V
3%
330 k
(5 )
PSW1/GL1
PSW2/GL2
PSW3/GL3
PSW4/GL4
PSW5/GL5/GPSW
ISP1122
OC1
OC2
OC3
OC4
OC5/GOC
Rev. 03 — 29 March 2000
low-ohmic
PMOS switch
1
0.1 F
47 k
low-ohmic
PMOS switch
2
0.1 F
47 k
low-ohmic
PMOS switch
3
0.1 F
47 k
low-ohmic
PMOS switch
4
0.1 F
47 k
low-ohmic
PMOS switch
5
0.1 F
47 k
Section
12.2.
ISP1122
USB stand-alone hub
downstream
ports
ferrite bead
V BUS
4.75 V
120
D
(min)
F
D
1
GND
SHIELD
ferrite bead
V BUS
4.75 V
120
D
(min)
F
D
2
GND
SHIELD
ferrite bead
V BUS
4.75 V
120
D
(min)
F
3
D
GND
SHIELD
ferrite bead
V BUS
4.75 V
120
D
(min)
F
D
4
GND
SHIELD
ferrite bead
V BUS
4.75 V
120
D
(min)
F
D
5
GND
SHIELD
MGR784
© Philips Electronics N.V. 2000. All rights reserved.
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