PACUSB-D2Y5

更新时间： 2024-09-14 03:28:03

品牌	Logo	应用领域
CALMIRCO		/
页数	文件大小	规格书
9页	315K
描述
USB Downstream Port Terminator

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数据手册

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PACUSB-D2Y5 数据手册

PACUSB-D1/D2/D3

USB Downstream Port Terminator

Features

Product Description

•

A low-capacitance USB downstream port termina-

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

downstream-port termination network. It integrates

EMI/RFI filter components R1 and C1, as recom-

mended by the USB specification as well as the

required 15kΩ pull-down resistors (R2) to GND. In

addition, PACUSB-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.

tor, EMI filter, and transient over-voltage (ESD)

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

Compact SOT23-5 and SC70-5 package options

save board space and lower manufacturing costs

compared to discrete solutions

Capacitors matched to a precision exceeding the

USB specification

Pin-compatible with ST Microelectronics

USBDFxxW5 USB Downstream Port Terminator

Lead-free versions available

•

There are three options for the value of the series

resistor R1: 15Ω, 22Ω, and 33Ω. This series resis-

tance, plus the USB driver output resistance, must be

close to the USB cable’s characteristic impedance of

45Ω (each side) to minimize transmission line reflec-

tions.

Applications

•

ESD protection and termination of USB

downstream ports

Desktop PCs

Notebooks

Set-top boxes

•

The PACUSB-D1/D2/D3 is manufactured in a 5-pin

SC70 or a 5-pin SOT23 package and is available with

optional lead-free finishing.

USB hubs

Electrical Schematic

GND

09/14/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112

▲

Tel: 408.263.3214

▲

Fax: 408.263.7846

▲

www.calmicro.com

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