ECLAMP2122S.TCT Semtech, ECLAMP2122S.TCT Datasheet

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ECLAMP2122S.TCT

Manufacturer Part Number
ECLAMP2122S.TCT
Description
Manufacturer
Semtech

Specifications of ECLAMP2122S.TCT

Mounting Style
Surface Mount
Termination
Gull Wing
Operating Temp Range
-40C to 125C
Product Height (mm)
1.45mm
Product Depth (mm)
2.8mm
Product Length (mm)
3.1mm
Lead Free Status / RoHS Status
Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ECLAMP2122S.TCT
Manufacturer:
SEMTECH/美国升特
Quantity:
20 000
faces
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The EClamp
termination device with integrated TVS diodes for use
on USB 2.0 interfaces. This device utilizes solid-state
silicon-avalanche technology for superior clamping
performance and DC electrical characteristics. They
have been optimized for protection of USB inter-
faces
faces in cellular phones and other portable electron-
faces
ics.
USB line termination is achieved with a series 22Ω
resistor on both the D+ and D- USB lines. These
resistors preserve signal integrity by matching the cable
impedance to that of the differential driver. The 15kΩ
pull-down resistors complete the termination circuit on
each line. They are required by the USB specification
to identify the line as a downstream connection. The
capacitors are used to bypass high frequency energy to
ground and for edge rate control of the USB signals.
Integrated TVS diodes provide ESD protection of both
(D+ & D-) data lines and the voltage bus (V
TVS diodes provide effective suppression of ESD
voltages in excess of 25kV (air discharge) and 20kV
(contact discharge) per IEC 61000-4-2.
The EClamp2122S is in a 6-pin SOT-23 package. The
leads are finished with lead-free matte tin. It is suit-
able for use in USB hubs, computers, peripherals, and
portable devices
Revision 1/24/2011
PROTECTION PRODUCTS - EMIClamp
Description
Circuit Diagram
®
2122S is combination EMI filter and line
C1
C1
protection of USB inter-
protection of USB inter-
protection of USB inter-
protection of USB inter-
C2
C2
BUS
). The
®
For EMI Filtering and ESD Protection
1
USB Downstream Port Filter & TVS
Features
Mechanical Characteristics
Applications
Pin Configuration
EMI/RFI filtering and line termination with inte-
grated ESD protection
ESD protection for USB power (V
(D+ & D-) to IIEC 61000-4-2 (ESD), ±25kV (air),
±20kV (contact)
Filtering and termination for two USB data lines
Series resistors for impedance matching
Integrated pull down resistors as required by the
USB specification for downstream ports
Low TVS operating voltage (5.25V)
Solid-state technology
JEDEC SOT-23 6L package
Pb-Free, Halogen Free, RoHS/WEEE Compliant
Nominal Dimensions: 2.9 x 2.8mm
Molding compound flammability rating: UL 94V-0
Marking: Marking Code + Date Code
Packaging: Tape and Reel
USB 1.1 Interfaces
USB Hubs
Printers
Monitors
Servers, Desktop, and Notebook computers
(Top Side View)
EClamp2122S
BUS
) and data lines
www.semtech.com

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ECLAMP2122S.TCT Summary of contents

Page 1

... Nominal Dimensions: 2.9 x 2.8mm Molding compound flammability rating: UL 94V-0 ). The Marking: Marking Code + Date Code BUS Packaging: Tape and Reel Applications USB 1.1 Interfaces USB Hubs Printers Monitors Servers, Desktop, and Notebook computers Pin Configuration EClamp2122S ) and data lines BUS (Top Side View) www.semtech.com ...

Page 2

... PROTECTION PRODUCTS Absolute Maximum Rating Electrical Characteristics ( © 2011 Semtech Corp EClamp2122S www.semtech.com ° C ° Ω kΩ ...

Page 3

... ESD Clamping (Pin 1 to GND) (8kV Contact per IEC 61000-4-2) ESD Clamping (Pin GND) (8kV Contact per IEC 61000-4-2) Note: ESD data is taken with a 20dB attenuator © 2011 Semtech Corp. EClamp2122S ESD Clamping (Pin 1 to GND) (-8kV Contact per IEC 61000-4-2) ESD Clamping (Pin GND) ...

Page 4

... Reverse Voltage - V © 2011 Semtech Corp. Frequency S21 (dB) 114.6MHz 800MHz 900MHz 1.8GHz 2.5GHz 2.7GHz MHz EClamp2122S Typical Insertion Loss S21 (Pin with respect to GND) -3.00 -12.58 -10.40 -4 ...

Page 5

... Avoid running critical signal lines near board edges. Place the EClamp2122S near the USB connector to restrict transient coupling. Minimize the path length between the USB connec- tor and the EClamp2122S. © 2011 Semtech Corp. Figure 1 - EClam Figure 1 - EClam Figure 1 - EClam Figure 1 - EClamp2 Figure 1 - EClam ) ...

Page 6

... DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. Land Pattern - SOT- (C) P NOTES: 1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY. CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET. © 2011 Semtech Corp. A DIM MIN A e1 .035 D .000 A1 A2 ...

Page 7

... Tape and Reel Specification ± Contact Information © 2011 Semtech Corp. Ordering Information Note: Lead finish is lead-free matte tin EMIClamp and EClamp are trademarks of Semtech Corporation ± ± ± Semtech Corporation Protection Products Division 200 Flynn Rd., Camarillo, CA 93012 Phone: (805)498-2111 FAX (805)498-3804 7 EClamp2122S ...

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