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PDF CM1293 Data sheet ( Hoja de datos )
| Número de pieza | CM1293 | |
| Descripción | 2- 4- and 8-Channel Low Capacitance ESD Protection Arrays | |
| Fabricantes | California Micro Devices | |
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CM1293www.DataSheet4U.com
2, 4, and 8-Channel Low Capacitance ESD Protection Arrays
Features
• 2, 4, and 8 channels of ESD protection
• Provides ESD protection to IEC61000-4-2
- 8kV contact discharge
- 15kV air discharge
• Low loading capacitance of 2.0pF max.
• Low clamping voltage
• Channel I/O to I/O capacitance 1.5pF 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 packages
• Lead-free version available
Applications
• 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 CM1293 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 neg-
ative 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 CM1293 will protect against
ESD pulses up to (±15kV air, ±8kV contact discharge)
per the IEC 61000-4-2 Level 4 standard.
This device is particularly well-suited for protecting sys-
tems using high-speed ports such as USB2.0,
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 CM1293 family of devices is available with
optional lead-free finishing.
Electrical Schematics
VP
CH1
CH2
VN
CM1293-02ST/SO
CM1293--02SR
CH4
VP CH3
CH1 VN CH2
CM1293-04ST/SO
CM1293-04MS/MR
CH8
CH7
VP
CH6 CH5
CH1 CH2
VN CH3
CM1293-08MS/MR
CH4
© 2006 California Micro Devices Corp. All rights reserved.
01/26/06
490 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● Tel: 408.263.3214 ● Fax: 408.263.7846 ● www.cmd.com
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CM1293www.DataSheet4U.com
Performance Information (Cont’d)
Typical Filter Performance (nominal conditions unless specified otherwise, 50 Ohm Environment)
Figure 1. Insertion Loss (S21) VS. Frequency (0V DC Bias, VP=3.3V)
Figure 2. Insertion Loss (S21) VS. Frequency (2.5V DC Bias, VP=3.3V)
© 2006 California Micro Devices Corp. All rights reserved.
01/26/06
490 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● Tel: 408.263.3214 ● Fax: 408.263.7846 ● www.cmd.com
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5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet CM1293.PDF ] | |
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