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PDF ITA6V5B3 Data sheet ( Hoja de datos )
| Número de pieza | ITA6V5B3 | |
| Descripción | BIDIRECTIONAL TRANSILTM ARRAY FOR DATALINE PROTECTION | |
| Fabricantes | STMicroelectronics | |
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®
Application Specific Discretes
A.S.D.TM
ITA6V5B3 / ITA10B3
ITA18B3 / ITA25B3
BIDIRECTIONAL TRANSILTM ARRAY
FOR DATALINE PROTECTION
APPLICATIONS
Differential data transmission lines protection :
- RS-232
- RS-423
- RS-422
- RS-485
FEATURES
HIGH SURGE CAPABILITY TRANSIL ARRAY
IPP = 40 A (8/20µs)
PEAK PULSE POWER : 300 W (8/20µs)
SEPARATED INPUT-OUTPUT
UP TO 9 BIDIRECTIONAL TRANSIL FUNCTIONS
LOW CLAMPING FACTOR (VCL / VBR) AT HIGH
CURRENT LEVEL
LOW LEAKAGE CURRENT
ESD PROTECTION UP TO 15kV
DESCRIPTION
Transil diode arrays provide high overvoltage
protectionby clamping action. Their instantaneous
response to transient overvoltages makes them
particularly suited to protect voltage sensitive
devices such as MOS Technology and low voltage
supplied IC’s.
The ITA series allies high surge capability against
energetic pulses with high voltage performance
against ESD.
The separated input/output configuration of the
device ensures improved protection against very
fast transient overvoltage like ESD by elimination
of the spikes induced by parasitic inductances
created by external wiring.
SO20
FUNCTIONAL DIAGRAM
COMPLIESWITHTHE FOLLOWINGSTANDARDS :
IEC 1000-4-2 : level 4
IEC 1000-4-4 : level 4
IEC 1000-4-5 : level 2
MIL STD 883C - Method 3015-6 : class 3
(human body model)
January 1998 Ed: 2
1/6
1 page  
ITA6V5B3 / ITA10B3 / ITA18B3 /ITA25B3
APPLICATION NOTICE
Design advantage of ITAxxxB3 used with 4-point structure.
The ITAxxxB3 has been designed with a 4-point structure (separated Input/output) in order to efficiently
protect against disturbances with very high di/dt rates, such as ESD.
The purpose of this 4-point structure is to eliminate the overvoltage introduced by the parasitic inductances
of the wiring (Ldi/dt).
Efficient protection depends not only on the component itself, but also on the circuit layout.The drawing
given in figure shows the layout to be used in order to take advantage of the 4-point structure of the
ITAxxxB3.
With this layout, each line to be protected passes through the protection device.
In this way, it realizes an interface between the data line and the circuit to be protected, guaranteeing an
isolation between its inputs and outputs.
The 4 - point structure layout.
ORDER CODE
INTEGRATED
TRANSIL ARRAY
VBR min
ITA 25 B 3
RL
PACKAGING:
RL = Tape and reel.
= Tube.
PACKAGE : SO20 PLASTIC
BIDIRECTIONAL
®
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5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet ITA6V5B3.PDF ] | |
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