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PDF CM1209 Data sheet ( Hoja de datos )
| Número de pieza | CM1209 | |
| Descripción | 4.6 and 8 Channel ESD Protection Arrays | |
| Fabricantes | California Micro Devices | |
| Logotipo |  |
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CM1209www.DataSheet4U.com
4,6 & 8 Channel ESD Protection Arrays
with Zener Supply Clamp
Features
• Four, six or eight channels of ESD protection for
high data rate signals
• Zener diode protects supply rail and eliminates the
need for external by-pass capacitors
• +15 kV contact, +15 kV air ESD protection per
channel (IEC 61000-4-2 standard)
• Low loading capacitance of 6pF typical
• Low supply current
• Available in miniature MSOP and SOIC packages
• Lead-free versions available
Applications
• ESD protection for a variety of electronic equip-
ment
• Set Top Boxes
• Digital TVs
• I/O & VGA Port protection
• Desktop and Notebook computers
• PDAs
• Cellular Phones
Product Description
The CM1209 family of diode arrays are designed to
provide either 4, 6 or 8 channels of ESD protection for
electronic components or sub-systems. Each channel
consists of a pair of diodes which steer the ESD cur-
rent pulse either to the positive (VP) or negative (VN)
supply. In addition, there is an integral Zener diode
between VP and VN to suppress any voltage distur-
bance due to these ESD current pulses. The CM1209
devices will protect against ESD pulses up to 15kV
contact discharge per the International Standard
IEC61000-4-2.
These devices are particularly well-suited for portable
electronics (e.g. cellular phones, PDAs, notebook com-
puters) because of its small package footprint, high
ESD protection level, and low loading capacitance.
They are also suitable for protecting video output lines
and I/O ports in computers, set top boxes, digital TVs
and peripheral equipment.
The CM1209 family of devices is optionally available
with lead-free finishing.
Electrical Schematics
8 76 5
VP
VN
8765
VP
VN
10 9 8 7 6
VP
VN
1234
CM1209-04
4-Channel
1234
CM1209-06
6-Channel
12345
CM1209-08
8-Channel
© 2004 California Micro Devices Corp. All rights reserved.
01/09/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 L Tel: 408.263.3214
L Fax: 408.263.7846 L www.calmicro.com
1
1 page  
Performance Information
10
8
6
4
2
0
012 345
Vin
Figure 1. Typical Variation of Channel Input
Capacitance (CIN) vs. Channel Input Voltage (VIN)
(VP = 5V via 10K resistor, VN = 0V)
Application Information
CM1209www.DataSheet4U.com
Slope = I/ZPOS
Slope = I/ZNEG
VZBD
Voltage [V]
Figure 2. IV Curve for CM1209
I/O Port
Buffers
3 CM1209-06 7
1 24 568
0.22µF*
Expansion
Connector
Typical ESD Protection
* Optional capacitor should be placed as close as
possible to the VP pin on all CM1209 devices.
Refer to ’Design Considerations’ text.
Figure 3. Application Example Using the CM1209-06 for I/O Port Protection
© 2004 California Micro Devices Corp. All rights reserved.
01/09/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 L Tel: 408.263.3214
L Fax: 408.263.7846 L www.calmicro.com
5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet CM1209.PDF ] | |
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