Datasheet > ISL54225

ISL54225

更新时间： 2023-12-20 18:45:10

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
18页	1103K
描述
High-Speed USB 2.0 (480Mbps) Multiplexer with Overvoltage Protection (OVP)

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ISL54225 数据手册

DATASHEET

ISL54225

FN7627

Rev 0.00

July 2, 2010

High-Speed USB 2.0 (480Mbps) Multiplexer with Overvoltage Protection (OVP)

The ISL54225 is a single supply dual 2:1 multiplexer

that can operate from a single 2.7V to 5.25V supply.

Features

• High-Speed (480Mbps) and Full-Speed (12Mbps)

Signaling Capability per USB 2.0

It contains two SPDT (Single Pole/Double Throw)

switches configured as a DPDT. The part was designed

for switching or routing of USB High-Speed signals

and/or USB Full-speed signals in portable battery

powered products.

• 1.8V Logic Compatible (2.7V to +3.6V Supply)

• Enable Pin to Open all Switches

• Low Power Mode

The 6.5switches were specifically designed to pass

USB high speed/full speed data signals. They have

high bandwidth and low capacitance to pass USB high

speed data signals with minimal DISTORTION.

• Power OFF Protection

• D-/D+ Pins Overvoltage Protection for +5.25V and

-5V Fault Voltages

• -3dB Frequency 780MHz

The ISL54225 has OVP circuitry on the D-/D+ COM

pins that opens the USB in-line switches when the

voltage at these pins exceeds 3.8V (typ) or goes

negative by -0.5V (typ). It isolates fault voltages up to

+5.25V or down to

• Low ON Capacitance @ 240MHz 3.3pF

• Low ON-Resistance 6.5

• Single Supply Operation (V ) 2.7V to 5.25V

• Available in µTQFN and TDFN Packages

• Pb-Free (RoHS Compliant)

-5V from getting passed to the other-side of the

switch, thereby protecting the USB transceivers.

• Compliant with USB 2.0 Short Circuit and

Overvoltage Requirements Without Additional

External Components

The digital logic inputs are 1.8V logic compatible when

operated with a 2.7V to 3.6V supply. The ISL54225

has an output enable pin to open all the switches. It

can be used to facilitate proper bus disconnect and

connection when switching between the USB sources.

Applications*(see page 16)

• MP3 and other Personal Media Players

• Cellular/Mobile Phones

• PDAs

The ISL54225 is available in 10 Ld 1.8mmx1.4mm

µTQFN and 10 Ld TDFN packages. It operates over a

temperature range of -40°C to +85°C.

• Digital Cameras and Camcorders

• USB Switching

Typical Application

USB 2.0 HS Eye Pattern With

Switches in the Signal Path

3.3V

500Ω

VDD

LOGIC

µP

SEL

CONTROL

VBUS

D-

HSD1-

USB

TRANSCEIVER

D-

HSD1+

OVP

HSD2-

D+

USB

TRANSCEIVER

HSD2+

ISL54225

GND

TIME SCALE (0.2ns/DIV)

FN7627 Rev 0.00

July 2, 2010

Page 1 of 18

12 3 4 5 6 7...18

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