PACUSB-U2R datasheet(1/6 Pages) ONSEMI

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 Semiconductor Components Industries, LLC, 2011

October, 2011 − Rev. 3

1

Publication Order Number:

PACUSBU/D

PACUSBU

Upstream USB Port

Terminator

Product Description

The PACUSB−U1, PACUSB−U2, and PACUSB−U3 are

single−channel USB upstream−port termination networks.

The PACUSB−U1/U2/U3 integrate EMI/RFI filter components R1

and C1, as recommended by the USB specification. Because these are

upstream USB devices, they are terminated with a single 1.5 kW

pull−up resistor to V3.3 (R2).

There are three options for the value of the series resistor R1:

 For PACUSB−U1, R1 = 15 W

 For PACUSB−U2, R1 = 33 W

 For PACUSB−U3, R1 = 22 W

This series resistance plus the USB driver output resistance must be

close to the USB cable’s characteristic impedance of 45

W (90 W

balanced) to minimize transmission line reflections.

In addition, these parts provide a very high level of protection for

sensitive electronic components that may be subjected to electrostatic

discharge (ESD). The input and output pins are designed and

characterized to dissipate ESD strikes of 15 kV safely, a level well

beyond the maximum requirements of the IEC 61000−4−2

international standard.

Using the MIL−STD−883D (Method 3015) specification for Human

Body Model (HBM) ESD, all pins are protected for contact discharges

to greater than 30 kV.

The PACUSB−U1/U2/U3 is housed in either a 6−pin SC70 or 6−pin

SOT23 package and is available with optional lead−free finishing.

Features

 One Upstream USB Port Terminator, EMI Filter and Transient

Overvoltage Protector in a Single Surface−Mount Package

 Compact SC70 or SOT23 Package Saves Board Space and

Lowers Manufacturing Costs Compared to Discrete Solutions

 ESD Protection to 30 kV Contact Discharge per

MIL−STD−883D, Method 3015

 ESD Protection to 15 kV Contact Discharge per IEC 61000−4−2

International Standard

 These Devices are Pb−Free and are RoHS Compliant

Applications

 ESD Protection and Termination of USB Port

 All USB Peripherals (PC Printers, Scanners, Zip Drives, etc.)

 PDAs/Handheld PCs

 Digital Cameras

 Wireless Handsets

 MP3 Players

 Cable Modems

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MARKING DIAGRAM

Device

Package

Shipping†

ORDERING INFORMATION

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specification

Brochure, BRD8011/D.

PACUSB−U2Y6R

SOT23−6

(Pb−Free)

3000/Tape & Reel

ELECTRICAL SCHEMATIC

1

2

4

6

R1

3

R1

R2

C1

GND

PACUSB−U3Y6R

SOT23−6

(Pb−Free)

3000/Tape & Reel

PACUSB−U1R

SC70−6

(Pb−Free)

3000/Tape & Reel

PACUSB−U2R

SC70−6

(Pb−Free)

3000/Tape & Reel

PACUSB−U3R

SC70−6

(Pb−Free)

3000/Tape & Reel

UxYR

= Specific Device Code

UxR

= Specific Device Code

x

= 1, 2, 3

UxR

5

D1_i

D2_i

V3.3

D1_c

D2_c

i = input; c = connector

SOT23−6

CASE 527AJ

SC70−6

CASE 419AD

Số phần tương tự - PACUSB-U2R

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