
ON Semiconductor
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 ±8kV, meeting the Level 4 requirement of the IEC61000-4-2 international standard as well as ±15kV 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 ±15kV.
FEATUREs
• Two, four, and eight 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
• RoHS-compliant, lead-free version finishing
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