Page 1
®
ITA6V1U1
Application Specific Discretes
A.S.D.
APPLICATIONS
Data transmission lines protection :
- Unipolar signal up to 5.5V
- Bipolar signal in the +/- 2.5V range
FEATURES
HIGH SURGE CAPABILITY TRANSIL ARRAY
■
= 40 A (8/20µs)
I
PP
PEAK PULSE POWER : 300 W (8/20µs)
■
UP TO 6 UNIDIRECTIONAL TRANSIL FUNC-
■
TIONS
LOW CLAMPING FACTOR (VCL/VBR)AT
■
HIGH CURRENT LEVEL
■ LOW LEAKAGE CURRENT
■ ESD PROTECTION UP TO 15kV
TM
TRANSIL
TM
ARRAY
FOR DATALINE PROTECTION
SO-8
FUNCTIONAL DIAGRAM
DESCRIPTION
Transil diode arrays provide high overvoltage
protectionbyclampingaction.Theirinstantaneous
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.
COMPLIES WITH THE FOLLOWING STANDARDS :
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)
I/O
I/O
I/O3
I/O 4
I/O
1
1
2
2
3
4
8
7
6
5
6
GND
GND
I/O 5
August 2001- Ed: 2
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Page 2
ITA6V1U1
ABSOLUTE MAXIMUM RATINGS (T
amb
= 25°C)
Symbol Parameter Value Unit
P
PP
Peak pulse power dissipation (8/20µs)
Tj initial = T
amb
300 W
(see note 1)
I
PP
2
I
t
T
stg
T
j
T
L
Note 1 : For surges greater than the specified maximum
value, the I/O will first present a short-circuit and after an
open circuit caused by the wire melting.
Peak pulse current (8/20µs) (see note 1) Tj initial = T
2
Wire I
t value (see note 1)
Storage temperature range
Maximum operating junction temperature
Maximum lead temperature for soldering during 10s
%I
pp
100
50
0
amb
-55to+150
8s
Pulse wave form 8/20 s
20 s
40 A
0.6 A
125
260 °C
t
°C
°C
2
s
ELECTRICAL CHARACTERISTICS (T
amb
= 25°C)
Symbol Parameter
V
RM
V
BR
V
CL
I
RM
I
PP
αT
C
V
F
Types IRM@VRMVBR@IRVCL@IPPVCL@IPPαTCV
ITA6V1U1
Note 2 : Between I/O pin and ground.
Note 3 : Between I/O pin and ground, at 0V Bias. F = 1MHz.
Stand-off voltage
Breakdown voltage
Clamping voltage
Leakage current @ V
RM
VCLV
BR
V
Peak pulse current
Voltage temperature coefficient
Junction capacitance
Forward voltage drop
max. min. max. 8/20µsmax. 8/20µsmax. max. max.
note 2 note 2 note 2 note 3
µAVVmAVAVA10
10 5 6.1 1 10 10 12 25 4 1500 1.3 1
I
I
F
V
I
I
F
RM
PP
RM
-4
/°C pF V A
@I
F
F
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Page 3
ITA6V1U1
Fig. 1 : Typical peak pulse power versus
exponential pulse duration.
Ppp(W)
1000
Tinitial=25C
j
100
10
1E-3 1E-2 1E-1 1E+0 1E+1
tp (ms) expo
o
Fig. 3 : Peak current IDCinducing open circuit of
the wire for one input/output versus pulse duration
(typical values).
I(A)
1E+03
DC
exponential wa veform
Fig. 2 : Clamping voltage versus peak pulse
current (exponential waveform 8/20 µs).
Fig. 4 : Junction capacitance versus reverse
applied voltage for one input/output (typical
values).
1E+02
1E+01
1E+00
1E-02 1E-01 1E+00 1E+01
t(ms)
Fig. 5 : Relative variation of leakage current
versus junction temperature
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Page 4
ITA6V1U1
APPLICATION INFORMATION
Typical application 1 : µP I/O lines
Typical application 2 : +/-2.5V Data lines
ORDER CODE
Integrated
Transil Array
4/5
V min
BR
ITA 6V1 U 1 RL
Packaging:
RL = Tape & reel
= Tube
Package: SO-8 Plastic
Unidirectional
Page 5
MARKING
TYPE MARKING
ITA6V1U1 6V1U1
PACKAGE MECHANICAL DATA
SO-8 (Plastic)
ITA6V1U1
Packaging: Preferred packagingis tape andreel.
Weight : 0.08g.
DIMENSIONS
REF.
A 1.75 0.069
a1 0.1 0.25 0.004 0.010
a2 1.65 0.065
b 0.35 0.48 0.014 0.019
b1 0.19 0.25 0.007 0.010
C 0.50 0.020
c1 45° (typ)
D 4.8 5.0 0.189 0.197
E 5.8 6.2 0.228 0.244
e 1.27 0.050
e3 3.81 0.150
F 3.8 4.0 0.15 0.157
L 0.4 1.27 0.016 0.050
M 0.6 0.024
S 8° (max)
Millimetres Inches
Min. Typ. Max. Min. Typ. Max.
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useof such information norforany infringement of patentsor other rights of thirdparties which may result fromits use. No licenseisgranted by
implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to
change without notice. This publication supersedes and replaces all information previously supplied.
STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
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© 2001 STMicroelectronics - Printed in Italy - All rights reserved.
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