1.1 General description
The devices are designed to protect the capacitive loads of Input/Output (I/O) ports
(such as USB 2.0, Ethernet, Digital Visual Interface (DVI), etc.) from being damaged by
ElectroStatic Discharge (ESD).
To provide ESD protection to downstream signal and supply components, the devices
incorporate four pairs of ultra low capacitance rail-to-rail diodes plus two Zener diodes.
This provides protection against contact discharge voltages as high as ±8 kV in
accordance with IEC 61000-4-2, level 4.
The ESD protection is independent of the supply voltage due to the rail-to-rail diodes
being connected to a Zener diode.
The devices are fabricated using monolithic silicon technology and integrate four ultra low
capacitance rail-to-rail ESD protection diodes plus two Zener diodes.
1.2 Features and benefits
Pb-free and Restriction of Hazardous Substances (RoHS) compliant
IEC 61000-4-2, level 4, ±8 kV contact discharge compliant ESD protection
Four input ESD rail-to-rail protection diodes with ultra low input capacitance of 0.6 pF
maximum
Low-voltage clamping due to integrated Zener diodes
1.3 Applications
General-purpose downstream ESD protection high-frequency analog signals and
high-speed serial data transmission for ports inside:
PC/Notebook USB 2.0/IEEE 1394 ports
Cellular phone and Personal Communication System (PCS) mobile handsets
Digital Visual Interface (DVI)
High-Definition Multimedia Interfaces (HDMI)
Cordless telephones
Wireless data (WAN/LAN) systems
MID (Mobile Internet Device) and PMP (Portable Media Player)