1.1 General description
The IP4059CX5 is designed to protect several I/O pins of computer interfaces, such as
Universal Serial Bus (USB) 2.0, USB On-The-Go (OTG), Ethernet, Digital Visual Interface
(DVI) etc. The IP4059CX5 incorporates ultra-low capacity diodes to provide protection to
downstream components from ElectroStatic Discharge (ESD) voltages as high as 8 kV
contact discharge according to the IEC 61000-4-2 model.
The device is fabricated using monolithic silicon technology and integrates four ultra-low
capacity ESD protection diodes in a 0.5 mm pitch Wafer-Level Chip-Scale Package
(WLCSP) measuring 0.96 mm by 1.34 mm only.
1.2 Features and benefits
 Pb-free, RoHS compliant and free of halogen and antimony (Dark Green compliant)
 4 ultra-low input capacity rail-to-rail ESD protection diodes with Cd = 3.0 pF
 Integrated ESD protection withstanding 8 kV contact discharge and 15 kV air
discharge
 WLCSP with 0.5 mm pitch
1.3 Applications
General purpose ElectroMagnetic Interference (EMI) and Radio Frequency Interference
(RFI) filtering and downstream ESD protection for USB ports inside:
 Cellular and Personal Communication System (PCS) mobile handsets
 PC peripherals and PCs
 Cordless telephones
 Wireless data and Local Area Network (LAN) systems
 Personal Digital Assistants (PDAs)
 Digital cameras