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ISP1122ABD Datasheet(PDF) 29 Page - NXP Semiconductors

No. de pieza ISP1122ABD
Descripción Electrónicos  Universal Serial Bus stand-alone hub
PDF  48 Pages
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Fabricante Electrónico  PHILIPS [NXP Semiconductors]
Página de inicio  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

ISP1122ABD Datasheet(HTML) 29 Page - NXP Semiconductors

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Philips Semiconductors
ISP1122A
USB stand-alone hub
Preliminary specification
Rev. 01 — 27 March 2000
29 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 13. Mode 0: bus-powered hub; ganged port power switching; global overcurrent detection.
MBL173
handbook, full pagewidth
INDV
OPTION
PSW1/GL1
PSW5/GL5/GPSW
PSW4/GL4
PSW3/GL3
SP/BP
OC5/GOC
PSW2/GL2
OC1
OC2
OC3
OC4
ISP1122A
VBUS
D
+
D
−
GND
SHIELD
+4.50 V(min)
upstream
port
VCC
GND
330
k
Ω
VBUS
D
+
D
−
GND
SHIELD
+4.40 V
(min)
1
downstream
ports
120
µF
ferrite bead
VBUS
D
+
D
−
GND
SHIELD
+4.40 V
(min)
2
120
µF
ferrite bead
VBUS
D
+
D
−
GND
SHIELD
+4.40 V
(min)
3
120
µF
ferrite bead
VBUS
D
+
D
−
GND
SHIELD
+4.40 V
(min)
4
120
µF
ferrite bead
low-ohmic
PMOS switch
47 k
Ω
0.1
µF



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