Product Description

The CM1230 is a family of 2, 4 and 8 channel, very low capacitance ESD protection diode arrays in CSP form factor. This device is ideal for protecting systems with high data and clock rates or for circuits that require low capacitive loading. Each channel consists of a pair of ESD diodes that act as clamp diodes that steer positive or negative ESD current pulses to either the positive or negative supply rail. A zener diode is integrated into the array between the positive and negative supply rails. The VCC rail is thus protected from ESD strikes and eliminates the need for a bypass capacitor to absorb positive ESD strikes to ground.

Features

• 2, 4 and 8 channels of ESD protection

• Provides ESD protection to IEC61000-4-2 Level 4

• ±8kV contact discharge

• ±15kV air discharge

• Low loading capacitance of 0.8pF typical

• Minimal capacitance change with temperature and voltage

• Channel I/O to GND capacitance difference of 0.02pF typical is ideal for differential signals

• Channel I/O to I/O capacitance 0.15pF 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

• Lead-free version available

Applications

• LCD and Camera data lines in wireless handsets that use high-speed serial interfaces.

• I/O port protection for mobile handsets, notebook computers, DSCs, MP3 players, PDAs, etc. including USB, 1394 and Serial ATA

• Wireless handsets

• Handheld PCs/PDAs

• LCD and camera modules