ISP1122 datasheet(26/48 Pages) PHILIPS

номер детали	ISP1122

подробное описание детали	Universal Serial Bus stand-alone hub

PDF	48 Pages

Scroll/Zoom	100%

производитель	PHILIPS [NXP Semiconductors]

домашняя страница	http://www.nxp.com

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26 / 48 page

Philips Semiconductors

ISP1122

USB stand-alone hub

Product speciﬁcation

Rev. 03 — 29 March 2000

26 of 48

9397 750 07002

Power switches 1 to 5 are low-ohmic PMOS devices as speciﬁed in Section 12.2.

Fig 10. Mode 5: self-powered hub; individual port power switching; individual overcurrent detection.

MGR784

handbook, full pagewidth

INDV

OPTION

PSW1/GL1

PSW5/GL5/GPSW

PSW4/GL4

PSW3/GL3

SP/BP

OC5/GOC

PSW2/GL2

OC1

OC2

OC3

OC4

5 V

POWER SUPPLY

± 3%

−

VBUS

−

GND

SHIELD

+4.85 V(min)

+4.75 V

(min)

VBUS

−

GND

SHIELD

+4.75 V

(min)

VBUS

−

GND

SHIELD

+4.75 V

(min)

VCC

GND

330 k

Ω

×)

100

Ω

1 k

Ω

VBUS

−

GND

SHIELD

+4.75 V

(min)

120

µF

VBUS

−

GND

SHIELD

+4.75 V

(min)

ferrite bead

downstream

ports

ISP1122

120

µF

ferrite bead

120

µF

ferrite bead

120

µF

ferrite bead

120

µF

ferrite bead

low-ohmic

PMOS switch

47 k

Ω

0.1

µF

low-ohmic

PMOS switch

47 k

Ω

0.1

µF

low-ohmic

PMOS switch

47 k

Ω

0.1

µF

low-ohmic

PMOS switch

47 k

Ω

0.1

µF

low-ohmic

PMOS switch

47 k

Ω

0.1

µF

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