ISL54228 INTERSIL [Intersil Corporation], ISL54228 Datasheet

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ISL54228

Manufacturer Part Number
ISL54228
Description
High-Speed USB 2.0 (480Mbps) DPST Switch with Overvoltage Protection (OVP)
Manufacturer
INTERSIL [Intersil Corporation]
Datasheet

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High-Speed USB 2.0 (480Mbps) DPST Switch with
Overvoltage Protection (OVP)
ISL54228
The Intersil ISL54228 is a single supply, dual SPST
(Single Pole/Single Throw) switch that is configured as a
DPST. It can 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.
The 3.5Ω 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 pins (OE and LP) to
control the SPST switches.
The ISL54228 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.
The ISL54228 is available in 8 Ld 1.2mmx1.4mm
µTQFN and 8 Ld 2mmx2mm TDFN packages. It operates
over a temperature range of -40°C to +85°C.
Typical Application
July 29, 2010
FN7628.0
VBUS
D-
D+
GND
500Ω
3.3V
COM -
COM +
ISL54228
VDD
OVP
DET
GND
CONTROL
LOGIC
1
D+
OE
LP
D-
1-888-INTERSIL or 1-888-468-3774
TRANSCEIVER
HIGH-SPEED
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
µP
USB
Features
• High-Speed (480Mbps) and Full-Speed (12Mbps)
• 1.8V Logic Compatible (2.7V to +3.6V Supply)
• Low Power State
• Power OFF Protection
• COM Pins Overvoltage Detection and Protection for
• -3dB Frequency . . . . . . . . . . . . . . . . . . 790MHz
• Low ON Capacitance @ 240MHz . . . . . . . . . . 2pF
• Low ON-Resistance . . . . . . . . . . . . . . . . . . 3.5Ω
• Single Supply Operation (V
• Available in µTQFN and TDFN Packages
• Pb-Free (RoHS Compliant)
• Compliant with USB 2.0 Short Circuit and
Applications*
• MP3 and other Personal Media Players
• Cellular/Mobile Phones, PDA’s
• Digital Cameras and Camcorders
• USB Switching
Switches in the Signal Path
USB 2.0 HS Eye Pattern with
Signaling Capability per USB 2.0
+5.25V and -5V Fault Voltages
Overvoltage Requirements Without Additional
External Components
All other trademarks mentioned are the property of their respective owners.
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2010. All Rights Reserved
TIME SCALE (0.2ns/DIV)
(see page 15)
DD
) . . . . 2.7V to 5.25V

Related parts for ISL54228

ISL54228 Summary of contents

Page 1

... High-Speed USB 2.0 (480Mbps) DPST Switch with Overvoltage Protection (OVP) ISL54228 The Intersil ISL54228 is a single supply, dual SPST (Single Pole/Single Throw) switch that is configured as a DPST. It can 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. The 3.5Ω ...

Page 2

... OFF OFF OFF 0 1 OFF 1 0 OFF 1 1 OFF ISL54228 (8 LD 2x2 TDFN) TOP VIEW LOGIC 4MΩ 4MΩ OVP GND 4 DESCRIPTION OUTPUT STATE Normal Normal Low Power Normal OVP OVP Neg OVP Limited Positive OVP ...

Page 3

... NiPdAu plate - e4 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. 4. For Moisture Sensitivity Level (MSL), please see device information page for ISL54228. For more information on MSL please see techbrief TB363. 3 ...

Page 4

... ISL54228 ISL54228 Thermal Information Thermal Resistance (Typical µTQFN Package (Note TDFN Package (Notes 5, 7 Maximum Junction Temperature (Plastic Package). . Maximum Storage Temperature Range -65°C to +150°C Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp Normal Operating Conditions Temperature Range . . . . . . . . . . . . . . . . . . -40° ...

Page 5

... DD DD Positive Supply Current 3.6V 3.6V GND DD DD Positive Supply Current 3.6V 0V (Low Power State) Positive Supply Current 4.3V 2.6V GND ISL54228 ISL54228 Test Conditions: V TEMP TEST CONDITIONS 2.7V 15kΩ 2.7V ...

Page 6

... OFF SWITCH V INPUT INPUT 90% SWITCH OUTPUT Logic input waveform is inverted for switches that have the opposite logic sense. FIGURE 1A. MEASUREMENT POINTS 6 ISL54228 ISL54228 Test Conditions: V TEMP TEST CONDITIONS t < 20ns r t < 20ns f SWITCH INPUT V OUT 90% Repeat test for all switches. C capacitance ...

Page 7

... Test Circuits and Waveforms V Repeat test for all switches. COMx IMPEDANCE ANALYZER Dx GND Repeat test for all switches. FIGURE 3. CAPACITANCE TEST CIRCUIT 7 ISL54228 ISL54228 (Continued /17mA ON 1 COMx HSDX V 1 17mA Dx GND FIGURE 2. r TEST CIRCUIT SIGNAL GENERATOR ...

Page 8

... OUT- 50% 90% 10 FIGURE 5A. MEASUREMENT POINTS 8 ISL54228 ISL54228 (Continued 15.8Ω DIN+ 143Ω 15.8Ω DIN- 143Ω |tro - tri| Delay Due to Switch for Rising Input and Rising Output Signals. |tfo - tfi| Delay Due to Switch for Falling Input and Falling Output Signals. ...

Page 9

... D+ COM + GND ISL54228 Detailed Description The ISL54228 device is a dual single pole/single throw (SPST) analog switch configured as a DPST that operates from a single DC power supply in the range of 2.7V to 5.25V. It was designed for switching a USB high-speed source or full-speed source in portable battery powered products offered in small µ ...

Page 10

... USB 5V V shorted to one or both of the COM+ and COM- pins or a negative voltage < -0.45V (typ) to -5V gets shorted to one or both of the COM pins, the ISL54228 has OVP circuitry to detect the overvoltage condition and open the SPST switches to prevent damage to the USB down-stream transceiver connected at the signal pins (D-, D+) ...

Page 11

... LDO of the portable media device. LOGIC CONTROL The state of the ISL54228 device is determined by the voltage at the OE pin, LP pin, and the signal voltage at the COM pins. Refer to “Truth Table” on page 2. The OE and LP pins are internally pulled low through a ...

Page 12

... V (V) COM FIGURE 10. ON-RESISTANCE vs SWITCH VOLTAGE 4.0 +85°C 3.5 +25°C 3 17mA COM 2.0 0 0.1 0.2 V (V) COM FIGURE 12. ON-RESISTANCE vs SWITCH VOLTAGE 12 ISL54228 ISL54228 T = +25°C, Unless Otherwise Specified 0.3 0.4 FIGURE 9. ON-RESISTANCE vs SUPPLY VOLTAGE 0.3 0.4 FIGURE 11. ON-RESISTANCE vs SWITCH VOLTAGE ...

Page 13

... Typical Performance Curves V = 3.3V DD FIGURE 14. EYE PATTERN: 480Mbps WITH USB SWITCHES IN THE SIGNAL PATH 13 ISL54228 ISL54228 T = +25°C, Unless Otherwise Specified (Continued) A TIME SCALE (0.2ns/DIV) FN7628.0 July 29, 2010 ...

Page 14

... FIGURE 15. EYE PATTERN: 12Mbps WITH USB SWITCHES IN THE SIGNAL PATH 50Ω 0dBm, 0.86VDC BIAS IN 1M 10M FREQUENCY (Hz) FIGURE 16. FREQUENCY RESPONSE 14 ISL54228 ISL54228 T = +25°C, Unless Otherwise Specified (Continued) A TIME SCALE (10ns/DIV) -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 100M 1G 0.001 R = 50Ω ...

Page 15

... Unless Otherwise Specified (Continued) A Die Characteristics SUBSTRATE AND TDFN THERMAL PAD POTENTIAL (POWERED UP): GND TRANSISTOR COUNT: 1297 PROCESS: Submicron CMOS 10 100 500 for a complete list of Intersil product families. ISL54228 www.intersil.com/askourstaff http://rel.intersil.com/reports/search.php www.intersil.com/product_tree www.intersil.com/design/quality CHANGE www.intersil.com FN7628.0 July 29, 2010 ...

Page 16

... LEAD THIN DUAL FLAT NO-LEAD PLASTIC PACKAGE (TDFN) WITH E-PAD Rev 0, 07/08 2.00 6 PIN 1 INDEX AREA (4X) 0.15 TOP VIEW Package Outline ( 6x0. 8x0.25 ) 0.80 2.00 TYPICAL RECOMMENDED LAND PATTERN 16 ISL54228 ISL54228 8x0. 8x0. max) 1.45 2.00 NOTES: 1. Dimensions are in millimeters. Dimensions ...

Page 17

... Package Outline Drawing L8.1.4x1.2 8 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 0, 4/09 1.40 PIN 1 INDEX AREA TOP VIEW 0.80 REF 8 X 0.20 0.60 0.70 TYPICAL RECOMMENDED LAND PATTERN 17 ISL54228 ISL54228 A B 0.60 0. 0.40 PKG OUTLINE 0.60 7X 0.50 0.60 NOTES: 1. Dimensions are in millimeters. Dimensions Dimensioning and tolerancing conform to AMSE Y14.5m-1994. ...

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