Datasheet > ISL54224

ISL54224

更新时间： 2024-10-01 14:57:31

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
18页	1095K
描述
High-Speed USB 2.0 (480Mbps) Multiplexer with Overvoltage Protection (OVP) and Overvoltage Indicator Output

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ISL54224 数据手册

DATASHEET

ISL54224

FN6969

Rev 1.00

September 19, 2013

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

and Overvoltage Indicator Output

The ISL54224 is a single supply dual 2:1 multiplexer that can

Features

operate from a single 2.7V to 5.25V supply. It contains two SPDT

• High-speed (480Mbps) and full-speed (12Mbps) signaling

capability per USB 2.0

(Single Pole/Double Throw) switches configured as a DPDT. The

part was designed for switching of USB data signals in portable

battery powered products.

• 1.8V logic compatible (2.7V to +3.6V supply)

The 6.5Ω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.

• OE/ALM pin to open all switches and indicate overvoltage

fault condition

• Power OFF protection

• D-/D+ pins overvoltage protection for +5.25V and -5V fault

voltages

The ISL54224 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 -5V from getting passed

to the other-side of the switch, thereby protecting the USB

transceivers.

• -3dB frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 780MHz

• Low ON capacitance @ 240MHz. . . . . . . . . . . . . . . . . . . . 3.3pF

• Low ON-resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.5Ω

• Single supply operation (V ). . . . . . . . . . . . . . . . 2.7V to 5.25V

The digital logic inputs are 1.8V logic compatible when operated

with a 2.7V to 3.6V supply. The ISL54224 has an open drain

OE/ALM pin that can be driven Low to open all switches and

outputs a Low when the OVP circuitry is activated. It can be used

to facilitate proper bus disconnect and connection when

switching between the USB sources.

• Available in µTQFN and TDFN packages

• Pb-free (RoHS compliant)

• Compliant with USB 2.0 short circuit and overvoltage

requirements without additional external components

Applications

• MP3 and other personal media players

• Cellular/mobile phones

• PDA’s

The ISL54224 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.

Related Literature

• See AN1571 “ISL54224IRTZEVAL1Z Evaluation Board User's

Manual”

• Digital cameras and camcorders

• USB switching

3.3V

500Ω

100kΩ

VDD

OE/ALM

LOGIC

CONTROL

SEL

µP

VBUS

D-

HSD1-

HSD1+

USB

D-

TRANSCEIVER

OVP

HSD2-

HSD2+

D+

USB

TRANSCEIVER

ISL54224

GND

TIME SCALE (0.2ns/DIV)

FIGURE 1. TYPICAL APPLICATION

FIGURE 2. USB 2.0 HS EYE PATTERN WITH SWITCHES IN THE

SIGNAL PATH

FN6969 Rev 1.00

Page 1 of 18

September 19, 2013

12 3 4 5 6 7...18

中文翻译

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与ISL54224相关器件

型号	品牌	获取价格	描述	数据表
ISL54224IRTZ	INTERSIL	获取价格	High-Speed USB 2.0 (480Mbps) Multiplexer with Overvoltage Protection (OVP) and Overvoltage
ISL54224IRTZ-T	INTERSIL	获取价格	High-Speed USB 2.0 (480Mbps) Multiplexer with Overvoltage Protection (OVP) and Overvoltage
ISL54224IRUEVAL1Z	INTERSIL	获取价格	High-Speed USB 2.0 (480Mbps) Multiplexer with Overvoltage Protection (OVP) and Overvoltage
ISL54224IRUZ-T	INTERSIL	获取价格	High-Speed USB 2.0 (480Mbps) Multiplexer with Overvoltage Protection (OVP) and Overvoltage
ISL54224IRUZ-T7A	INTERSIL	获取价格	High-Speed USB 2.0 (480Mbps) Multiplexer with Overvoltage Protection (OVP) and Overvoltage
ISL54225	INTERSIL	获取价格	High-Speed USB 2.0 (480Mbps) Multiplexer with Overvoltage Protection (OVP)
ISL54225	RENESAS	获取价格	High-Speed USB 2.0 (480Mbps) Multiplexer with Overvoltage Protection (OVP)
ISL54225_10	INTERSIL	获取价格	High-Speed USB 2.0 (480Mbps) Multiplexer with Overvoltage Protection (OVP)
ISL54225IRTZ	INTERSIL	获取价格	High-Speed USB 2.0 (480Mbps) Multiplexer with Overvoltage Protection (OVP)
ISL54225IRTZEVAL1Z	INTERSIL	获取价格	High-Speed USB 2.0 (480Mbps) Multiplexer with Overvoltage Protection (OVP)

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