Datasheet > ISL54227

ISL54227

更新时间： 2024-11-28 14:57:55

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
18页	1102K
描述
High-Speed USB 2.0 (480Mbps) DPST Switch with Overvoltage Protection (OVP) and Dedicated Charger Port Detection

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ISL54227 数据手册

DATASHEET

ISL54227

FN7593

Rev 1.00

September 5, 2013

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

and Dedicated Charger Port Detection

The Intersil ISL54227 is a single supply, dual SPST (Single

Features

Pole/Single Throw) switch that is configured as a DPST. It can

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

capability per USB 2.0

operate from a single 2.7V to 5.25V supply. The part was

designed for switching or isolating a USB high-speed source or a

USB high-speed and full-speed source in portable battery

powered products.

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

• Alarm overvoltage indicator output

• Charger interrupt indicator output

• Low power state

The 3.5SPST switches were specifically designed to pass USB

full speed and USB high speed data signals. They have high

bandwidth and low capacitance to pass USB high speed data

signals with minimal distortion.The device has two logic control

input pins (OE and LP) to control the SPST switches.

• Power OFF protection

• COM pins overvoltage detection and protection for +5.25V

and -5V fault voltages

The ISL54227 has OVP detection circuitry on the COM pins to

open the SPST switches when the voltage at these pins

exceeds 3.8V or goes negative by -0.45V. 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 down-

stream transceiver. It has an alarm indicator output pin (ALM)

to indicate when the part is in the overvoltage condition.

• -3dB Frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 790MHz

• Low ON capacitance @ 240MHz. . . . . . . . . . . . . . . . . . . . . 2pF

• Low ON-resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5

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

• Available in µTQFN and TDFN packages

• Pb-Free (RoHS compliant)

The part has an interrupt (INT) output pin to indicate a 1-to-1

(high/high) state on the COM lines to inform the µprocessor

when entering a dedicated charging port mode of operation.

• Compliant with USB 2.0 short circuit and overvoltage

requirements without additional external components

The ISL54227 is available in 10 Ld 1.8mmx1.4mm µTQFN and

10 Ld 3mmx3mm TDFN packages. It operates over a

temperature range of -40°C to +85°C.

Applications

)

• MP3 and other Personal Media Players

• Cellular/Mobile Phones, PDA’s

• Digital Cameras and Camcorders

• USB Switching

3.3V

500Ω

VDD

INT

ALM

LOGIC

µP

CONTROL

BUS

D-

COM-

D-

USB

HIGH-SPEED

OVP

COM+

TRANSCEIVER

D+

ISL54227

GND

TIME SCALE (0.2ns/DIV)

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

SIGNAL PATH

FIGURE 1. TYPICAL APPLICATION

FN7593 Rev 1.00

September 5, 2013

Page 1 of 18

12 3 4 5 6 7...18

中文翻译

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与ISL54227相关器件

型号	品牌	获取价格	描述	数据表
ISL54227_10	INTERSIL	获取价格	High-Speed USB 2.0 (480Mbps) DPST Switch with Overvoltage Protection (OVP) and Dedicated C
ISL54227IRTZ	INTERSIL	获取价格	High-Speed USB 2.0 (480Mbps) DPST Switch with Overvoltage Protection (OVP) and Dedicated C
ISL54227IRTZEVAL1Z	INTERSIL	获取价格	High-Speed USB 2.0 (480Mbps) DPST Switch with Overvoltage Protection (OVP) and Dedicated C
ISL54227IRTZ-T	INTERSIL	获取价格	High-Speed USB 2.0 (480Mbps) DPST Switch with Overvoltage Protection (OVP) and Dedicated C
ISL54227IRUZ-T	INTERSIL	获取价格	High-Speed USB 2.0 (480Mbps) DPST Switch with Overvoltage Protection (OVP) and Dedicated C
ISL54227IRUZ-T7A	INTERSIL	获取价格	High-Speed USB 2.0 (480Mbps) DPST Switch with Overvoltage Protection (OVP) and Dedicated C
ISL54228	INTERSIL	获取价格	High-Speed USB 2.0 (480Mbps) DPST Switch with Overvoltage Protection (OVP)
ISL54228IRTZ-T	INTERSIL	获取价格	High-Speed USB 2.0 (480Mbps) DPST Switch with Overvoltage Protection (OVP)
ISL54228IRTZ-T7A	INTERSIL	获取价格	High-Speed USB 2.0 (480Mbps) DPST Switch with Overvoltage Protection (OVP)
ISL54228IRUZEVAL1Z	INTERSIL	获取价格	High-Speed USB 2.0 (480Mbps) DPST Switch with Overvoltage Protection (OVP)

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