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參數資料
| 型號： | ISL54225IRUZ-T |
| 廠商： | Intersil |
| 文件頁數： | 1/18頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MULTIPLEXER DUAL 2:1 10TQFN |
| 標準包裝： | 3,000 |
| 功能： | 多路復用器 |
| 電路： | 2 x 2:1 |
| 導通狀態(tài)電阻： | 20 歐姆 |
| 電壓電源： | 單電源 |
| 電壓 - 電源，單路/雙路(±)： | 2.7 V ~ 5.25 V |
| 電流 - 電源： | 45µA |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 10-UFQFN |
| 供應商設備封裝： | 10-UTQFN（1.8x1.40） |
| 包裝： | 帶卷 (TR) |
1
ISL54225
High-Speed USB 2.0 (480Mbps) Multiplexer with
Overvoltage Protection (OVP)
ISL54225
The Intersil ISL54225 is a single supply dual 2:1
multiplexer that can operate from a single 2.7V to 5.25V
supply. 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.
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.
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
-5V from getting passed to the other-side of the switch,
thereby protecting the USB transceivers.
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.
The ISL54225 is available in 10 Ld 1.8mmx1.4mm
TQFN and 10 Ld TDFN packages. It operates over a
temperature range of -40°C to +85°C.
Features
High-Speed (480Mbps) and Full-Speed (12Mbps)
Signaling Capability per USB 2.0
1.8V Logic Compatible (2.7V to +3.6V Supply)
Enable Pin to Open all Switches
Low Power Mode
Power OFF Protection
D-/D+ Pins Overvoltage Protection for +5.25V and
-5V Fault Voltages
-3dB Frequency . . . . . . . . . . . . . . . . . . . . 780MHz
Low ON Capacitance @ 240MHz . . . . . . . . . . 3.3pF
Low ON-Resistance . . . . . . . . . . . . . . . . . . . . 6.5Ω
Single Supply Operation (VDD) . . . . . 2.7V to 5.25V
Available in TQFN and TDFN Packages
Pb-Free (RoHS Compliant)
Compliant with USB 2.0 Short Circuit and
Overvoltage Requirements Without Additional
External Components
MP3 and other Personal Media Players
Cellular/Mobile Phones
PDA’s
Digital Cameras and Camcorders
USB Switching
Typical Application
USB 2.0 HS Eye Pattern With
Switches in the Signal Path
ISL54225
USB
TRANSCEIVER
U
S
B
CONNE
CTO
R
D-
D+
GND
HSD1+
HSD1-
VDD
OE
P
VBUS
D-
D+
GND
OVP
500Ω
SEL
LOGIC
CONTROL
3.3V
USB
TRANSCEIVER
HSD2+
HSD2-
TIME SCALE (0.2ns/DIV)
VOL
T
AGE
S
C
ALE
(
0
.1
V/D
IV)
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2010. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
July 2, 2010
FN7627.0
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