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ISP1122ABD Arkusz danych(PDF) 27 Page - NXP Semiconductors

Numer części ISP1122ABD
Szczegółowy opis  Universal Serial Bus stand-alone hub
PDF  48 Pages
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Producent  PHILIPS [NXP Semiconductors]
Strona internetowa  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

ISP1122ABD Arkusz danych(HTML) 27 Page - NXP Semiconductors

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Philips Semiconductors
ISP1122A
USB stand-alone hub
Preliminary specification
Rev. 01 — 27 March 2000
27 of 48
9397 750 06986
© Philips Electronics N.V. 2000. All rights reserved.
Power switch is low-ohmic PMOS device as specified in Section 12.2.
Fig 11. Mode 1: self-powered hub; ganged port power switching; global overcurrent detection.
handbook, full pagewidth
MBL171
INDV
OPTION
PSW1/GL1
PSW5/GL5/GPSW
PSW4/GL4
PSW3/GL3
SP/BP
OC5/GOC
PSW2/GL2
OC1
OC2
OC3
OC4
low-ohmic
sense resistor
for overcurrent
detection
ISP1122A
5.1 V KICK-UP
POWER SUPPLY
± 3%
−
+
+4.95 V(min)
+4.95 V(min)
VCC
GND
330
k
Ω
VBUS
D
+
D
−
GND
SHIELD
+4.75 V
(min)
1
downstream
ports
120
µF
ferrite bead
VBUS
D
+
D
−
GND
SHIELD
+4.75 V
(min)
2
120
µF
ferrite bead
VBUS
D
+
D
−
GND
SHIELD
+4.75 V
(min)
3
120
µF
ferrite bead
VBUS
D
+
D
−
GND
SHIELD
+4.75 V
(min)
4
120
µF
ferrite bead
VBUS
D
+
D
−
GND
SHIELD
+4.75 V
(min)
5
120
µF
ferrite bead
100
Ω
to
1 k
Ω
low-ohmic
PMOS switch
47 k
Ω
0.1
µF



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