ITA25B1RL [STMICROELECTRONICS]
BIDIRECTIONAL TRANSILTM ARRAY FOR DATALINE PROTECTION; 双向TRANSILTM数组，数据线保护
| 型号： | ITA25B1RL |
| 厂家： | 
ST |
| 描述： | BIDIRECTIONAL TRANSILTM ARRAY FOR DATALINE PROTECTION |
| 文件： | 总5页 (文件大小：149K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ITA6V5B1 / ITA10B1
ITA18B1 / ITA25B1
BIDIRECTIONAL TRANSILTM ARRAY
FOR DATALINE PROTECTION
®
Application Specific Discretes
TM
A.S.D.
APPLICATIONS
Differential data transmission lines protection :
- RS-232
- RS-423
- RS-422
- RS-485
SO-8
FEATURES
■
HIGH SURGE CAPABILITY TRANSIL ARRAY
IPP = 40 A (8/20µs)
■
■
■
PEAK PULSE POWER : 300 W (8/20µs)
UP TO 5 BIDIRECTIONAL TRANSIL FUNCTIONS
LOW CLAMPING FACTOR (VCL / VBR) AT
HIGH CURRENT LEVEL
■
■
LOW LEAKAGE CURRENT
ESD PROTECTION UP TO 15kV
FUNCTIONAL DIAGRAM
DESCRIPTION
Transil diode arrays provide high overvoltage
protection by 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.
I/O
I/O
1 1
2 2
8
7
6
G N D
I/O3 3
The ITA series allies high surge capability against
energetic pulses with high voltage performance
against ESD.
4
5 G N D
I/O4
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)
August 2001- Ed: 2
1/5
ITA6V5B1 / ITA10B1 / ITA18B1 / ITA25B1
ABSOLUTE MAXIMUM RATINGS (Tamb = 25°C)
Symbol
Parameter
Value
Unit
PPP
Peak pulse power dissipation (8/20µs)
(see note 1)
Tj initial = Tamb
Tj initial = Tamb
300
W
IPP
I2t
Peak pulse current (8/20µs) (see note 1)
40
A
Wire I2t value (see note 1)
0.6
A2s
Tstg
Tj
Storage temperature range
Maximum operating junction temperature
- 55 to + 150
125
°C
°C
TL
Maximum lead temperature for soldering during 10s
260
°C
%I
pp
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.
8
s
100
50
Pulse wave form 8/20
s
t
0
20
s
ELECTRICAL CHARACTERISTICS (Tamb = 25°C)
Symbol
VRM
VBR
VCL
IRM
Parameter
Stand-off voltage
Breakdown voltage
Clamping voltage
Leakage current @ VRM
Peak pulse current
IPP
αT
Voltage temperature coefficient
Junction capacitance
C
Types
IRM
@
VRM
VBR
min.
note 2
V
@
IR
VCL
@
IPP
VCL
max.
@
IPP
αT
C
max.
note 3
pF
max.
8/20µs
8/20µs
max.
note 2
V
note 2
V
µA
V
5
mA
1
A
A
10-4/°C
4
10
6.5
10
10
12
25
750
ITA6V5B1
ITA10B1
ITA18B1
ITA25B1
4
4
4
8
10
18
25
1
1
1
15
25
33
10
10
10
19
28
38
25
25
25
8
9
570
350
300
15
24
12
Note 2 : Between I/O pin and ground.
Note 3 : Between two input Pins at 0V Bias, F = 1 MHz.
Preferred types in bold
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ITA6V5B1 / ITA10B1 / ITA18B1 /ITA25B1
Fig. 1 : Typical peak pulse power versus
exponential pulse duration.
Fig. 2 : Clamping voltage versus peak pulse
current (exponential waveform 8/20 µs).
P
(W)
PP
1E+04
T
initial = 25oC
j
ITA25B1
ITA18B1
ITA10B1
1E+03
ITA6V5B1
1E+02
1E+01
t
(ms) expo
P
1E-03
1E-02
1E-01
1E+00 1E+01 1E+02
Fig. 3 : Peak current IDC inducing open circuit of
the wire for one input/output versus pulse duration
(typical values).
Fig. 4 : Junction capacitance versus reverse
applied voltage for one input/output (typical
values).
I
(A)
DC
1E+03
exponential waveform
1E+02
1E+01
1E+00
t
(ms)
1E+01
1E-02
1E-01
1E+00
Fig. 5 : Relative variation of leakage current
versus junction temperature
3/5
ITA6V5B1 / ITA10B1 / ITA18B1 / ITA25B1
APPLICATION INFORMATION
Types
Maximum differential voltage
between two input pins at 25°C
+ / - 3.5 V
+ / - 5.0 V
+ / - 9.0 V
+ / - 12.5 V
ITA6V5B1
ITA10B1
ITA18B1
ITA25B1
This monolithic Transil Array is based on 6
unidirectional Transils with a common cathode and
can be configurated to offer up to 5 bidirectional
functions. This imposes a maximum differential
voltage between 2 input pins (see opposite table).
Typical application : RS232 junction.
TX
RX
RTS
CTS
GND
ORDER CODE
ITA 25 B 1 RL
Packaging:
RL = Tape & reel
= Tube
Integrated
Transil Array
VBR min
Package: SO-8 Plastic
Bidirectional
4/5
ITA6V5B1 / ITA10B1 / ITA18B1 /ITA25B1
MARKING
Packaging : Preferred packaging is tape and reel.
Weight : 0.08g.
TYPE
MARKING
6V5B1
10B1
ITA6V5B1
ITA10B1
ITA18B1
ITA25B1
18B1
25B1
PACKAGE MECHANICAL DATA
SO-8 (Plastic)
DIMENSIONS
REF.
Millimetres
Inches
Min. Typ. Max. Min. Typ. Max.
A
a1
a2
b
1.75
0.069
0.010
0.065
0.019
0.010
0.1
0.25 0.004
1.65
0.35
0.19
0.48 0.014
0.25 0.007
b1
C
0.50
0.020
c1
D
45° (typ)
4.8
5.8
5.0 0.189
6.2 0.228
0.197
0.244
E
e
1.27
3.81
0.050
0.150
e3
F
3.8
0.4
4.0 0.15
1.27 0.016
0.6
0.157
0.050
0.024
L
M
S
8° (max)
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of
use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted 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 ap-
proval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
© 2001 STMicroelectronics - Printed in Italy - All rights reserved.
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