Product Description

The CM1230 is a family of 2, 4 and 8 channel, very low capacitance ESD protection diode arrays in a CSP form factor. It is ideal for protecting systems with high data and clock rates or for circuits that need low capacitive loading. Each channel consists of a pair of ESD diodes that act as clamp diodes to steer ESD current pulses to either the positive or negative supply rail. A Zener diode is integrated between the positive and negative supply rails. The VCC rail is protected from ESD strikes and eliminates the need for a bypass capacitor to absorb positive ESD strikes to ground. Each channel can safely dissipate ESD strikes of ±8 kV, meeting the Level 4 requirement of the IEC61000−4−2 international standard as well as ±15 kV air discharges per the IEC61000−4−2 specification. Using the MIL−STD−883 (Method 3015) specification for Human Body Model (HBM) ESD, the pins are protected for contact discharges at greater than ±15 kV.

Features

• Two, Four, and Eight Channels of ESD Protection

• Provides ESD Protection to IEC61000−4−2 Level 4 ±8 kV Contact Discharge & ±15 kV Air Discharge

• Low Loading Capacitance of 0.8 pF Typical

• Minimal Capacitance Change with Temperature and Voltage

• Channel I/O to GND Capacitance Difference of 0.02 pF Typical is Ideal for Differential Signals

• Channel I/O to I/O Capacitance 0.15 pF Typical

• Zener Diode Protects Supply Rail and Eliminates the Need for External By−pass Capacitors

• Each I/O Pin Can Withstand Over 1000 ESD Strikes*

• Available in 4, 6 and 10 Bump Chip Scale Packages (CSP)

• OptiGuard Coated for Improved Reliability at Assembly

• These Devices are Pb−Free and are RoHS Compliant

Applications

• I/O Port Protection for Mobile Handsets, Notebook Computers, DSCs, MP3 Players, PDAs, etc. Including USB, 1394 and Serial ATA

• LCD and Camera Data Lines in Wireless Handsets that use High−speed Serial Interfaces

• Wireless Handsets

• Handheld PCs/PDAs

• LCD and Camera Modules