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IP4234CZ6
Single USB 2.0 ESD protection to IEC 61000-4-2 level 4
Rev. 01 — 16 April 2009
Product data sheet
1. Product pro?le
1.1 General description
The IP4234CZ6 is designed to protect Input/Output (I/O) USB 2.0 ports, that are sensitive
to capacitive loads, from being damaged by ElectroStatic Discharge (ESD). The π -?lter
structure is implemented with a small series resistor to provide the necessary protection
to signal and supply components from ESD voltages greater than ± 8 kV contact discharge
according IEC 61000-4-2, level 4.
The ESD protection is independent of the supply voltage due to the rail-to-rail diode
architecture being connected to a Zener diode.
The IP4234CZ6 is fabricated using monolithic silicon technology and integrates two
ultra-low capacitance π -?lter ESD protection diodes plus a Zener diode in a miniature
6-lead SOT457 package.
1.2 Features
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Pb-free and RoHS compliant
Simple, direct signal routing provides for high speed signal integrity
ESD protection compliant to IEC 61000-4-2 level 4, ± 8 kV contact discharge
Signi?cant reduction in peak clamping and peak residual current
Four low input capacitance (2.0 pF typical) rail-to-rail ESD protection diodes
Low voltage clamping due to an integrated Zener diode
Small 6-lead SO6 (SOT457) package
IEC 61000-4-5 15 A Lightning (8/20 μ s) compliant
1.3 Applications
I General-purpose downstream ESD protection high frequency analog signals and
high-speed serial data transmission for ports inside:
N Cellular and PCS mobile handsets
N PC/Notebook USB2.0/IEEE1394 ports
N DVI interfaces
N HDMI interfaces
N Cordless telephones
N Wireless data (WAN/LAN) systems
N PDAs
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