參數(shù)資料
型號: ISP1122
廠商: NXP Semiconductors N.V.
英文描述: Universal Serial Bus stand-alone hub
中文描述: 通用串行總線獨立的樞紐
文件頁數(shù): 27/48頁
文件大小: 1159K
代理商: ISP1122
Philips Semiconductors
ISP1122
USB stand-alone hub
Product specification
Rev. 03 — 29 March 2000
27 of 48
9397 750 07002
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.
dbook, full pagewidth
MGR785
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
ISP1122
5.1 V KICK-UP
POWER SUPPLY
±
3%
+
+
4.95 V(min)
+
4.95 V(min)
VCC
GND
330
k
VBUS
D
+
D
GND
SHIELD
+
4.75 V
(min)
1
downstream
ports
120
μ
F
ferrite bead
VBUS
D
+
D
GND
SHIELD
+
4.75 V
(min)
2
120
μ
F
ferrite bead
VBUS
D
+
D
GND
SHIELD
+
4.75 V
(min)
3
120
μ
F
ferrite bead
VBUS
D
+
D
GND
SHIELD
+
4.75 V
(min)
4
120
μ
F
ferrite bead
VBUS
D
+
D
GND
SHIELD
+
4.75 V
(min)
5
120
μ
F
ferrite bead
100
to
1 k
low-ohmic
PMOS switch
47 k
0.1
μ
F
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