Datasheet > PACUSBVB-D3

PACUSBVB-D3

更新时间： 2024-11-04 05:59:27

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
9页	215K
描述
USB Downstream Port Terminator with VBUS ESD Protection

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PACUSBVB-D3 数据手册

USB Downstream Port Terminator

with VBUS ESD Protection

PACUSBVB-D1/D2/D3

Features

Product Description

•

A low-capacitance USB downstream port

terminator, EMI filter, and transient over-voltage

The PACUSBVB-D1/D2/D3 is a single-channel USB

downstream-port termination network. It integrates

EMI/RFI filter components R1 and C1 as

recommended by the USB specification, as well as

the required 15kW pull-down resistors (R2) to GND.

In addition, PACUSBVB-D1/D2/D3 provides a very

high level of protection for sensitive electronic

components that may be subjected to electrostatic

discharge (ESD). The device pins will safely dissipate

ESD strikes of 15kV, exceeding 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 from contact discharges to 20kV.

The PACUSBVB-D1/D2/D3 also features a fifth zener

diode (cathode at pin 5) which provides ESD

protection for the USB VBUS line.

protector in a single surface-mounted package

ESD protection to 20kV contact discharge, per

MIL-STD-883D, Method 3015

ESD protection to 15kV contact discharge, per

IEC 61000-4-2 International Standard

Provides ESD protection for the VBUS line

Compact SOT23-6 package saves board space

and lowers manufacturing costs compared to

discrete solutions

•

Capacitors matched to a precision exceeding the

USB specification

Lead-free versions available

Applications

•

ESD protection and termination of USB

downstream ports

Desktop PCs

Notebooks

Set-top boxes

There are three options for the value of the series

•

resistor R1: 15Ω, 33Ω, and 22Ω.

This series

resistance, plus the USB driver output resistance,

must be close to the USB cable’s characteristic

impedance of 45W (each side) to minimize

transmission line reflections.

USB hubs

The PACUSBVB-D1/D2/D3 is housed in a 6-pin

SOT23 package and is available with optional lead-

free finishing.

June 2010 – Rev. 2

Publication Order Number:

PACUSBVBD1/D2/D3/D

12 3 4 5 6 7...9

中文翻译

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