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PDF AZC002-02N Data sheet ( Hoja de datos )
| Número de pieza | AZC002-02N | |
| Descripción | Low Capacitance ESD Protection Array | |
| Fabricantes | Amazing Microelectronic | |
| Logotipo |  |
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AZC002-02N
Low Capacitance ESD Protection Array
For High Speed Data Interfaces
Features
z ESD Protect for 2 high-speed I/O channels
z Provide ESD protection for each channel to
IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact)
IEC 61000-4-4 (EFT) (5/50ns) Level-3, 20A for I/O,
40A for Power
IEC 61000-4-5 (Lightning) 6A (8/20μs)
z 5V operating voltage
z Low capacitance : 1.2pF typical
z Fast turn-on and Low clamping voltage
z Array of surge rated diodes with internal
equivalent TVS diode
z Small package saves board space
z Solid-state silicon-avalanche and active circuit
triggering technology
z Green part available
Applications
z USB2.0 Power and Data lines protection
z Notebook and PC Computers
z Monitors and Flat Panel Displays
z IEEE 1394 Firewire Ports
z Video Graphics Cards
z SIM ports
Description
AZC002-02N is a high performance and low cost
design which includes surge rated diode arrays
to protect high speed data interfaces. The
AZC002-02N family has been specifically
designed to protect sensitive components, which
are connected to data and transmission lines,
from over-voltage caused by Electrostatic
Discharging (ESD), Electrical Fast Transients
(EFT), and Lightning.
AZC002-02N is a unique design which includes
surge rated, low capacitance steering diodes and
a unique design of clamping cell which is an
equivalent TVS diode in a single package. During
wwwt.rDaantsaSiehneett4cUo.cnodmitions, the steering diodes direct
the transient to either the power supply line or to
the ground line. The internal unique design of
clamping cell prevents over-voltage on the power
line, protecting any downstream components.
AZC002-02N may be used to meet the ESD
immunity requirements of IEC 61000-4-2, Level 4
(± 15kV air, ±8kV contact discharge).
Circuit Diagram
4
2
1
3
Pin Configuration
VDD
4
I/O 2
3
1
GND
2
I/O 1
JEDEC SOT143-4L (Top View)
Revision 2008/09/29 ©2008-2009 Amazing Micro.
1
www.amazingIC.com
1 page  
AZC002-02N
Low Capacitance ESD Protection Array
For High Speed Data Interfaces
B. Device Connection
The AZC002-02N is designed to protect two
data lines and power rails from transient
over-voltage (such as ESD stress pulse). The
device connection of AZC002-02N is shown in
the Fig. 2. In Fig. 2, the two protected data lines
are connected to the ESD protection pins (pin2
and pin3) of AZC002-02N. The ground pin (pin1)
of AZC002-02N is a negative reference pin. This
pin should be directly connected to the GND rail
of PCB (Printed Circuit Board). To get minimum
parasitic inductance, the path length should keep
as short as possible. In addition, the power pin
(pin 4) of AZC002-02N is a positive reference pin.
This pin should directly connect to the VDD rail of
PCB. When pin 4 of AZC002-02N is connected to
the VDD rail, the leakage current of ESD
protection pin of AZC002-02N becomes very
small. Because the pin 4 of AZC002-02N is
directly connected to VDD rail, the VDD rail also
can be protected by the power-rail ESD clamped
circuit (not shown) of AZC002-02N.
AZC002-02N can provide protection for 2 I/O
signal lines simultaneously. If the number of I/O
signal lines is less than 2, the unused I/O pins
can be simply left as NC pins.
In some cases, systems are not allowed
to be reset or restart after the ESD stress
directly applying at the I/O-port connector.
Under this situation, in order to enhance the
sustainable ESD Level, a 0.1μF chip capacitor
can be added between the VDD and GND rails.
The place of this chip capacitor should be as
close as possible to the AZC002-02N.
GND rail
1
VDD rail
4 *Optional
0.1μF
Chip Cap.
23
I/O 1
To
I/O-port
Conne ctor
I/O 2
data line
data line
I/O 1 To
Prote cte d
IC
I/O 2
Fig. 2 Data lines and power rails connection of AZC002-02N.
www.DataSheet4U.com
Revision 2008/09/29 ©2008-2009 Amazing Micro.
5
www.amazingIC.com
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet AZC002-02N.PDF ] | |
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