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PDF ESDA6V1L Data sheet ( Hoja de datos )
| Número de pieza | ESDA6V1L | |
| Descripción | DUAL TRANSIL ARRAY FOR ESD PROTECTION | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ESDA6V1L (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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®
Application Specific Discretes
A.S.D.
ESDAxxL
DUAL TRANSIL ARRAY
FOR ESD PROTECTION
APPLICATIONS
Where transient overvoltage protection in ESD
sensitive equipment is required, such as :
- COMPUTERS
- PRINTERS
- COMMUNICATION SYSTEMS
It is particulary recommended for the RS232 I/O
port protection where the line interface withstands
only with 2kV ESD surges.
FEATURES
n 2 UNIDIRECTIONAL TRANSIL FUNCTIONS.
n LOW LEAKAGE CURRENT : IR max. < 20µA at
VBR.
n 300 W PEAK PULSE POWER (8/20µs)
DESCRIPTION
The ESDAxxL is a dual monolithic voltage
suppressor designed to protect components which
are connected to data and transmission lines
against ESD.
It clamps the voltage just above the logic level
supply for positive transients, and to a diode drop
below ground for negative transients.
It can also work as bidirectionnal suppressor by
connecting only pin1 and 2.
SOT23
FUNCTIONAL DIAGRAM
BENEFITS
High ESD protection level : up to 25 kV.
High integration.
Suitable for high density boards.
COMPLIES WITH THE FOLLOWING STANDARDS :
IEC61000-4-2 level 4
MIL STD 883C-Method 3015-6 : class 3.
(human body model)
Marchr 2000 - Ed: 4A
1/6
1 page  
1. ESD protection by the ESDAxxL
Electrostatic discharge (ESD) is a major cause of
failure in electronic systems.
Transient Voltage Suppressors (TVS) are an ideal
choice for ESD protection. They are capable of
clamping the incoming transient to a low enough
level such that damage to the protected
semiconductor is prevented.
Surface mount TVS arrays offer the best choice for
minimal lead inductance.
They serve as parallel protection elements,
connected between the signal line to ground. As
ESDAxxL
the transient rises above the operating voltage of
the device, the TVS array becomes a low
impedance path diverting the transient current to
ground.
The ESDAxxL array is the ideal board level
protection of ESD sensitive semiconductor
components.
The tiny SOT23 package allows design flexibility in
the design of high density boards where the space
saving is at a premium. This enables to shorten the
routing and contributes to hardening againt ESD.
I/O
I/O
I/O
I/O
ESD
sensitive
device
2 * ESDAXXL
GND
2. Circuit Board Layout
Circuit board layout is a critical design step in the
suppression of ESD induced transients. The
following guidelines are recommended :
n The ESDAxxL should be placed as close as pos-
sible to the input terminals or connectors.
n The path length between the ESD suppressor
and the protected line should be minimized
n All conductive loops, including power and
ground loops should be minimized
n The ESD transient return path to ground should
be kept as short as possible.
n Ground planes should be used whenever possi-
ble.
5/6
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet ESDA6V1L.PDF ] | |
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