srda054 Semtech Corporation, srda054 Datasheet

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srda054

Manufacturer Part Number
srda054
Description
Srda12-4 Railclamp Low-capacitance Tvs Diode Array | Semtech
Manufacturer
Semtech Corporation
Datasheet
1.SRDA054.pdf (11 pages)
RailClamps are surge rated diode arrays designed to
protect high speed data interfaces. The SRDA series
has been specifically designed to protect sensitive
components which are connected to data and trans-
mission lines from overvoltage caused by electrostatic
discharge (ESD), electrical fast transients (EFT), and
lightning.
The unique design incorporates surge rated, low
capacitance steering diodes and a TVS diode in a
single package. During transient conditions, the
steering diodes direct the transient current to ground
via the internal low voltage TVS. The TVS diode clamps
the transient voltage to a safe level. The low capaci-
tance array configuration allows the user to protect up
to four high-speed data lines. The SRDA05-4 may be
used to protect lines operating up to 5 volts while the
SRDA12-4 may be used on lines operating up to 12
volts.
These devices are in a 8-pin SOIC package. They are
available with a SnPb or RoHS/WEEE compliant matte
tin lead finish. The high surge capability (Ipp=25A,
tp=8/20μs) means it can be used in high threat
environments in applications such as CO/CPE equip-
ment, telecommunication lines, and video lines.
Revision 8/21/07
PROTECTION PRODUCTS
PROTECTION PRODUCTS - RailClamp
REF1
Description
Circuit Diagram
I/O 1
I/O 2
REF2
I/O 3
I/O 4
® ® ® ® ®
1
Low Capacitance TVS Diode Array
Features
Mechanical Characteristics
Applications
Schematic and PIN Configuration
Transient protection for high-speed data lines to
IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact)
IEC 61000-4-4 (EFT) 40A (5/50ns)
IEC 61000-4-5 (Lightning) 24A (8/20μs)
Array of surge rated diodes with internal TVS diode
Protects four I/O lines
Low capacitance (<15pF) for high-speed interfaces
Low operating and clamping voltages
Solid-state technology
JEDEC SOIC-8 package
Lead Finish: SnPb or Matte Sn
Molding compound flammability rating: UL 94V-0
Marking : Part number, date code, logo
Packaging : Tape and Reel per EIA 481
USB Power and Data Line Protection
T1/E1 secondary IC Side Protection
T3/E3 secondary IC Side Protection
HDSL, SDSL secondary IC Side Protection
Video Line Protection
Microcontroller Input Protection
Base stations
I
2
REF 1
REF 1
C Bus Protection
I/O 1
I/O 2
SRDA05-4 and SRDA12-4
1
2
3
4
S0-8 (Top View)
RailClamp
www.semtech.com
8
7
6
5
I/O 3
REF 2
REF 2
I/O 4
® ® ® ® ®

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srda054 Summary of contents

Page 1

PROTECTION PRODUCTS PROTECTION PRODUCTS - RailClamp Description RailClamps are surge rated diode arrays designed to protect high speed data interfaces. The SRDA series has been specifically designed to protect sensitive components which are connected to data and trans- mission lines ...

Page 2

PROTECTION PRODUCTS PROTECTION PRODUCTS Absolute Maximum Rating μ ...

Page 3

PROTECTION PRODUCTS PROTECTION PRODUCTS Electrical Characteristics (continued ...

Page 4

PROTECTION PRODUCTS PROTECTION PRODUCTS Typical Characteristics Non-Repetitive Peak Pulse Power vs. Pulse Time 10 1 0.1 0.01 0 Pulse Duration - t Pulse Waveform 110 100 ...

Page 5

PROTECTION PRODUCTS PROTECTION PRODUCTS Applications Information Device Connection Options for Protection of Four High-Speed Lines The SRDA TVS is designed to protect four data lines from transient overvoltages by clamping them to a fixed reference. When the voltage on the ...

Page 6

PROTECTION PRODUCTS PROTECTION PRODUCTS Applications Information (continued) when the voltage exceeds the V F approximation, the clamping voltage due to the charac- teristics of the protection diodes is given by (for positive duration pulses) PIN ...

Page 7

PROTECTION PRODUCTS PROTECTION PRODUCTS Applications Information (continued) the power supply connection. During an ESD event, the current will be directed through the integrated TVS diode to ground. The total clamping voltage seen by the protected IC due to this path ...

Page 8

PROTECTION PRODUCTS PROTECTION PRODUCTS Typical Applications © 2007 Semtech Corp. SRDA05-4 and SRDA12-4 Universal Serial Bus ESD Protection 8 5 SRDA05 T1/E1 Interface Protection 8 LC01-6 LC01-6 www.semtech.com ...

Page 9

PROTECTION PRODUCTS PROTECTION PRODUCTS Applications Information - Spice Model © 2007 ...

Page 10

PROTECTION PRODUCTS PROTECTION PRODUCTS Outline Drawing - SO E ccc C 2X N/2 TIPS e aaa SEATING PLANE C A1 bxN bbb C A-B D NOTES: ...

Page 11

... Semtech Corporation Protection Products Division 200 Flynn Road, Camarillo, CA 93012 Phone: (805)498-2111 FAX (805)498-3804 11 SRDA05-4 and SRDA12 ...

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