DALC112 (STMicroelectronics)
LOW CAPACITANCE DIODE ARRAY FOR ESD PROTECTION

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®
Application Specific Discretes
A.S.D.TM
DALC112S1
LOW CAPACITANCE DIODE
ARRAY FOR ESD PROTECTION
MAIN APPLICATIONS
Where ESD protection for high speed datalines is
required :
LAN / WAN equipment
Computer I/O
Graphic video port
Set top box I/O
DESCRIPTION
ARRAY of 12 diodes configured by cells of 2
diodes, each cell being used to protect signal line
from transient overvoltages by clamping action.
Its very low capacitance allows to protect fast
signals with no distortion. It is particularlysuited for
the protection of graphic video ports.
SO8
FUNCTIONAL DIAGRAM
FEATURES
ARRAYOF 12 DIODESFOR ESDPROTECTION.
PEAK REVERSE VOLTAGE VRRM= 18V PER
DIODE.
VERYLOWCAPACITANCE PERDIODE: C <5pF.
VERY LOW LEAKAGE CURRENT : IR < 2 µA.
I/O 1
I/O 2
COMPLIESWITHTHE FOLLOWINGSTANDARDS :
IEC1000-4-2level 3
8 kV (air discharge)
6 kV (contactdischarge)
I/O 3
I/O 4
REF 1
I/O 6
REF 2
I/O 5
January 1998 - Ed: 4
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DALC112 (STMicroelectronics)
LOW CAPACITANCE DIODE ARRAY FOR ESD PROTECTION

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DALC112S1
TYPICAL APPLICATION
Vcc
DALC112S1
ABSOLUTE MAXIMUM RATINGS (Tamb =25°C).
Symbol
Parameter
VRRM
Peak reverse voltage per diode
Tstg Storage temperature range
Tj Maximum junction temperature
Value
18
-55 to + 150
150
Unit
V
°C
°C
ELECTRICAL CHARACTERISTICS (Tamb = 25°C).
Symbol
VF
IR
C
Parameter
Forward voltage
Reverse leakage current per diode
Input capacitance between Line and GND
Vcc = 5 V, VRMS = 30 mV, F = 1 MHz
(see figure 1 below)
IF = 50 mA
VR = 15 V
Typ.
Max.
1.3
2
Unit
V
µA
7 pF
Fig 1 : Input capacitance measurement
REF2
I/O
G
VCC
REF1
+VCC connected between REF1 and REF2
Input applied :
Vcc = 5V, VRMS = 30 mV, F = 1 MHz
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DALC112 (STMicroelectronics)
LOW CAPACITANCE DIODE ARRAY FOR ESD PROTECTION

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ORDER CODE
DALC 1 12 S 1 RL
DALC112S1
Diode Array
Low
Capacitance
Version
MARKING
Type
Marking
DALC112S1 DALC12
Nb. of Diodes
Order Code
DALC112S1
DALC112S1RL
RL = tape& reel (2500 pcs).
= tube (100 pcs).
SO8 Package
Packaging (Base Qty)
tube (100)
tape & reel (2500)
PACKAGE MECHANICAL DATA
SO8 (Plastic)
REF.
A
a1
a2
b
b1
C
c1
D
E
e
e3
F
L
M
S
DIMENSIONS
Millimetres
Inches
Min. Typ. Max. Min. Typ. Max.
1.75 0.069
0.1
0.25 0.004
0.010
1.65 0.065
0.35
0.48 0.014
0.019
0.19
0.25 0.007
0.010
0.50 0.020
45° (typ)
4.8
5.0 0.189
0.197
5.8
6.2 0.228
0.244
1.27 0.050
3.81 0.150
3.8
4.0 0.15
0.157
0.4
1.27 0.016
0.050
0.6 0.024
8° (max)
PACKAGING : Preferred packaging is tape and reel.
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 infringementof 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 informationprevious ly supplied.
STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written ap-
proval of STMicroelectronics.
© 1998 STMicroelectronics - Printed in Italy - All rights reserved.
STMicroelectronics GROUP OF COMPANIES
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Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A.
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