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PDF CM1224 Data sheet ( Hoja de datos )
| Número de pieza | CM1224 | |
| Descripción | 2- and 4-Channel Low Capacitance ESD Protection Arrays | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de CM1224 (archivo pdf) en la parte inferior de esta página. Total 14 Páginas | ||
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2- and 4-Channel Low Capacitance ESDwww.DataSheet4U.com
Protection Arrays
CM1224
Features
• Two or four channels of ESD protection
• Provides ESD protection to IEC61000-4-2 Level 4
• ±8kV contact discharge
• Low channel input capacitance of 0.7pF typical
• Minimal capacitance change with temperature and
voltage
• Channel input capacitance matching of 0.02pF typical
is ideal for differential signals
• Zener diode protects supply rail and eliminates the
need for external by-pass capacitors
• Low clamping voltage (VCLAMP) at 10V
• Low Dynamic resistance (RDYN) at 1.08Ω
• Each I/O pin can withstand over 1000 ESD strikes*
• Available in SOT and MSOP lead-free packages
Applications
• USB 2.0 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
Block Diagram
Product Description
The CM1224 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 CM1224 protects
against ESD pulses up to ±8kV per the IEC 61000-4-2
standard.
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, as well as DVD-RW drives and other
applications where extremely low loading capacitance with
ESD protection are required.
The CM1224 family of devices has lead-free finishing in a
small package footprint.
©2010 SCILLC. All rights reserved.
April 2010 – Rev. 3
Publication Order Number:
CM1224/D
1 page  
CM1224
Performance Information
Input Channel Capacitance Performance Curves
www.DataSheet4U.com
Rev. 3 | Page 5 of 14 | www.onsemi.com
5 Page 
CM1224
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Tape and Reel Specifications
PART NUMBER
CM1224-04SO
PACKAGE SIZE
(mm)
2.90 X 2.80 X 1.45
POCKET SIZE (mm) TAPE WIDTH
B0 X A0 X K0
W
3.20 X 3.20 X 1.40
8mm
REEL
DIAMETER
178mm (7")
QTY PER
REEL
3000
P0
4mm
P1
4mm
Rev. 3 | Page 11 of 14 | www.onsemi.com
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet CM1224.PDF ] | |
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