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PDF AZC199-04C Data sheet ( Hoja de datos )
| Número de pieza | AZC199-04C | |
| Descripción | Low Capacitance High ESD Level Protection Array | |
| Fabricantes | Amazing Microelectronic | |
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AZC199-04C
Low Capacitance High ESD Level Protection Array
For High Speed I/O Port
Features
ESD Protect for 4 high-speed I/O lines and one
VDD line
Provide ESD protection for each line to
IEC 61000-4-2 (ESD) ±15kV (air/contact)
IEC 61000-4-4 (EFT) 50A (5/50ns)
IEC 61000-4-5 (Lightning) 5A (8/20μs)
For low operating voltage applications: 5V, 4.2V,
3.3V, 2.5V etc.
Low capacitance : 1.0pF typical
Fast turn-on and Low clamping voltage
Array of ESD rated diodes with internal
equivalent TVS diode
Solid-state silicon-avalanche and active circuit
triggering technology
Back-drive protection for power-down mode
Small SOT363 package saves board space
Green part
Applications
Video Graphics Cards
Digital Visual Interface (DVI)
USB2.0 Power and Data lines protection
Notebook and PC Computers
Monitors and Flat Panel Displays
Description
AZC199-04C is a design which includes ESD
rated diode arrays to protect high speed data
interfaces. The AZC199-04C has been specifically
designed to protect sensitive components which
are connected to data and transmission lines from
over-voltage caused by Electrostatic Discharging
(ESD).
AZC199-04C is a unique design which includes
ESD rated, low capacitance steering diodes and a
unique design of clamping cell which is an
equivalent TVS diode in a single package. During
transient conditions, the steering diodes direct the
transient to either the power supply line or to
ground line. The internal unique design of
clamping cell prevents over-voltage on the power
line, protecting any downstream components.
Besides, there is a back-drive protection design in
AZC199-04C for power-down mode operation.
AZC199-04C may be used to meet the ESD
immunity requirements of IEC 61000-4-2, Level 4
(15kV air, 8kV contact discharge).
Circuit Diagram
5
Pin Configuration
I/O 4
VDD
I/O 3
654
1346
2
123
I/O 1
GND
I/O 2
SC70-6L (Top View)
(SOT-363)
Revision 2010/02/10 ©2010 Amazing Micro.
1
www.amazingIC.com
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
www.DataSheet.co.kr
AZC199-04C
Low Capacitance High ESD Level Protection Array
For High Speed I/O Port
B. Device Connection
The AZC199-04C is designed to protect four
data lines and power rails from transient
over-voltage (such as ESD stress pulse). The
device connection of AZC199-04C is shown in
the Fig. 2. In Fig. 2, the four protected data lines
are connected to the ESD protection pins (pin1,
pin3, pin4, and pin6) of AZC199-04C. The
ground pin (pin2) of AZC199-04C 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 5) of AZC199-04C is
a positive reference pin. This pin should directly
connect to the VDD rail of PCB., then the VDD
rail also can be protected by the power-rail ESD
clamped circuit (not shown) of AZC199-04C.
AZC199-04C can provide protection for 4 I/O
signal lines simultaneously. If the number of I/O
signal lines is less than 4, 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 0.1F 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 AZC199-04C.
In some cases, there isn’t power rail
presented on the PCB. Under this situation, the
power pin (pin 5) of AZC199-04C can be left as
floating. The protection will not be affected, only
the load capacitance of I/O pins will be slightly
increased. Fig. 3 shows the detail connection.
I/O 1
To
I/O-port
Connector I/O 2
data line
data line
I/O 1
To
Protected
I/O 2 IC
GND rail
1
2
3
6 VDD rail
5
*Optional
0.1F
4 Chip Cap.
I/O 3
To
I/O-port
Connector
I/O 4
data line
data line
I/O 3 To
Protected
IC
I/O 4
Fig. 2 Data lines and power rails connection of AZC199-04C.
I/O 1
To
I/O-port
Connector I/O 2
data line
data line
I/O 1
To
Protected
I/O 2 IC
GND rail
1
2
3
6
5
VDD
floated
4
I/O 3
To
I/O-port
Connector
I/O 4
data line
data line
I/O 3 To
Protected
IC
I/O 4
Fig. 3 Data lines and power rails connection of AZC199-04C. VDD pin is left as floating when no
power rail presented on the PCB.
Revision 2010/02/10 ©2010 Amazing Micro.
5
www.amazingIC.com
Datasheet pdf - http://www.DataSheet4U.net/
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet AZC199-04C.PDF ] | |
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