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RCLAMP1255P

Description
Low Capacitance RClamp Surge Protection for uUSB Interfaces
File Size266KB,10 Pages
ManufacturerSEMTECH
Websitehttp://www.semtech.com
Download Datasheet View All

RCLAMP1255P Overview

Low Capacitance RClamp Surge Protection for uUSB Interfaces

Low Capacitance RClamp
®
Surge Protection for uUSB Interfaces
PROTECTION PRODUCTS - RailClamp
®
Description
RailClamp
®
TVS arrays are low capacitance ESD
protection devices designed to protect high speed data
interfaces. The RClamp
®
1255P provides dedicated
surge and ESD protection for uUSB ports. It is de-
signed to replace multiple discrete components in
portable applications. This device features low capaci-
tance TVS diodes for protection of the USB data (DP,
DM) and USB ID pins operating up to +/- 4 volts.
These diodes provide ESD protection to ±10kV contact
discharge per IEC 61000-4-2. Loading capacitance on
these lines is <0.50pF. An integrated 12 volt TVS
diode is used for protection of the USB voltage bus.
The VBus TVS is designed with a high surge current
capability of 100A (tp=8/20us) and low clamping
voltage.
The RClamp1255P is in a 6-pin SLP2018P6 package. It
measures 2.0 x 1.8mm with a nominal height of 0.57mm.
This highly integrated device requires less board space
than existing solutions.
The combination of small size, low capacitance, and high
level of surge and ESD protection makes this device a
flexible solution for protection of USB interfaces in mo-
bile phones, laptops, and other portable electonics.
RClamp1255P
PRELIMINARY
Features
ESD and surge protection for USB Voltage Bus to
IEC 61000-4-2 (ESD) ±30kV (air), ±30kV (contact)
IEC 61000-4-5 (Lightning) 100A (8/20μs)
IEC 61000-4-4 (EFT) 40A (5/50ns)
ESD protection for USB data lines to
IEC 61000-4-2 (ESD) ±15kV (air), ±10kV (contact)
Protects USB DP, DM, and ID Pins operating up to
+/- 4V
Protects USB VBus operating up to 12V
Low capacitance
(<0.50pF)
on DP, DM, and ID Pins
Low clamping voltage
Low dynamic resistance on DP, DM, and ID Pins
Solid-state silicon-avalanche technology
Mechanical Characteristics
SLP2018P6 6L package
Pb-Free, Halogen Free, RoHS/WEEE Compliant
Nominal Dimensions: 2.0 x 1.8 x 0.57 mm
Lead Finish: NiPdAu
Molding compound flammability rating: UL 94V-0
Marking : Marking Code + Date Code
Packaging : Tape and Reel
Applications
USB 2.0
USB OTG
uUSB
Circuit Diagram
Pin Configuration (Top View)
1
12V
2
3
4
4V
5, 6,
Tabs
VBus
D+
D-
ID
GND
GND
GND
GND
Revision 06/18/2013
1
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