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CM1213A Datasheet(PDF) 1 Page - California Micro Devices Corp |
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CM1213A Datasheet(HTML) 1 Page - California Micro Devices Corp |
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1 / 11 page  CM1213A 1-, 2- and 4-Channel Low Capacitance ESD Protection Arrays Features • 1, 2 and 4 channels of ESD protection • Provides ESD protection to IEC61000-4-2 Level 4 - 8kV contact discharge - 15kV air discharge • Low channel input capacitance of 0.85pF typical • Minimal capacitance change with temperature and voltage • Channel input capacitance matching of 0.02pF typical is ideal for differential signals • Mutual capacitance between signal pin and adjacent signal pin - 0.11pF 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 SOT and MSOP lead-free packages Applications • USB2.0 ports at 480Mbps in desktop PCs, notebooks and peripherals • IEEE1394 Firewire ® ports at 400Mbps / 800Mbps • DVI ports, HDMI ports in notebooks, set top boxes, digital TVs, LCD displays • Serial ATA ports in desktop PCs and hard disk drives • PCI Express ports • General purpose high-speed data line ESD protection Product Description The CM1213A family of diode arrays has been designed to provide ESD protection for electronic components or sub-systems requiring minimal capacitive loading. These devices are ideal for protecting systems with high data and clock rates or for circuits requiring low capacitive loading. Each ESD channel consists of a pair of diodes in series which steer the positive or negative ESD current pulse to either the positive (VP) or negative (VN) supply rail. A Zener diode is embedded between VP and VN, offering two advantages. First, it protects the VCC rail against ESD strikes, and second, it eliminates the need for a bypass capacitor that would otherwise be needed for absorbing positive ESD strikes to ground. The CM1213A will protect against ESD pulses up to ±8kV per the IEC 61000-4-2 standard and using the MIL STD-883D (Method 3015) specification for Human Body Model (HBM) ESD, all pins are protected from contact discharges of greater than ±15kV. These devices are particularly well-suited for protecting systems using high-speed ports such as USB 2.0, IEEE1394 (Firewire ®, iLink™), Serial ATA, DVI, HDMI and corresponding ports in removable storage, digital camcorders, DVD-RW drives and other applications where extremely low loading capacitance with ESD protection are required in a small package footprint. The CM1213A family of devices is available with lead- free finishing. Electrical Schematics VP VP CH4 VP CH3 CH1 CH1 VN CM1213A-02SO CH2 VN CH1 VN CH2 CM1213A-01SO CM1213A-04SO CM1213A-02SR CM1213A-04MR © 2007 California Micro Devices Corp. All rights reserved. 04/03/07 490 N. McCarthy Blvd., Milpitas, CA 95035-5112 l Tel: 408.263.3214 l Fax: 408.263.7846 l www.cmd.com 1 |
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