ISP1520BD ST-Ericsson Inc, ISP1520BD Datasheet - Page 42

• Manufacturer Part Number: ISP1520BD
• Description: IC, CONTROLLER, USB HUB, 64-LQFP
• Manufacturer: ST-Ericsson Inc

Specifications of ISP1520BD

• Usb Type: USB Peripheral Controller
• Usb Version: 2.0
• Data Rate: 480Mbps
• No. Of Ports: 5
• Supply Voltage Range: 3V To 3.6V, 4.5V To 5.5V
• Digital Ic Case Style: QFP
• No. Of Pins: 64
• Package / Case: LQFP
• Applications: USB Hub/Microcontroller
• Interface: I²C
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 568-1168; ISP1520BD,557

Philips Semiconductors
16. Application information
ISP1520_4
Product data sheet
Fig 17. Descriptors configuration selection application diagram
facing port GoodLink
upstream
The I
(1) The function on port 4, which is a nonremovable port, is optional.
amber LEDs,
green and
port 1
2
C-bus cannot be shared between the EEPROM and the external microcontroller; see
16.1 Descriptor configuration selection
16.2 Overcurrent detection limit adjustment
four USB downstream facing ports
amber LEDs,
green and
port 2
For an overcurrent limit of 500 mA per port, a PMOS with R
is required. If a PMOS with a lower R
adjusted by using a series resistor; see
∆V
Fig 18. Adjusting analog overcurrent detection limit (optional)
∆V
I
OC(nom)
PMOS
ISP1520
(1) R
PMOS
amber LEDs,
= ∆V
green and
adj(oc)
= 0.6 µA.
= voltage drop on PMOS
port 3
trip
is optional.
= ∆V
amber LEDs,
green and
port 4
trip(intrinsic)
Rev. 04 — 28 April 2006
5 V
ROM
(1)
V
− (I
REF(5V0)
OC(nom)
DSon
Figure
ISP1520
acting as I
external microcontroller
is used, analog overcurrent detection can be
× R
USB function
PSWn_N
adj(oc)
18.
2
C-bus master
), where:
I
2
C-bus
004aaa259
OCn_N
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Hi-Speed USB hub controller
R
DSon
Table
I
adj(oc)
OC
of approximately 100 mΩ
(1)
11.
EEPROM
ISP1520
004aaa303
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