DALC112S1
Application Specific Discretes
A.S.D.
MAINAPPLICATIONS
WhereESD protection for high speed datalines is
required:
LAN/ WANequipment
ComputerI/O
Graphicvideo port
Set topbox I/O
DESCRIPTION
ARRAY of 12 diodes configured by cells of 2
diodes, each cell being used to protect signal line
fromtransientovervoltagesbyclamping action.
Its very low capacitance allows to protect fast
signalswith no distortion.Itis particularlysuitedfor
theprotectionof graphicvideo ports.
TM
LOW CAPACITANCEDIODE
ARRAY FOR ESD PROTECTION
SO8
FUNCTIONAL DIAGRAM
FEATURES
ARRAYOF12DIODESFORESDPROTEC T IO N .
PEAK REVERSE VOLTAGE V
DIODE.
VERYLOWCAPACITANCEPERDIODE:C <5pF.
VERYLOWLEAKAGECURRENT : I
COMPLIESWITHTH EFOLL OWINGSTANDAR DS:
IEC1000-4-2lev el3 8kV(airdischa r ge)
6kV(cont actdischar ge)
= 18V PER
RRM
R
<2µA.
I/O 1
I/O 2
I/O 3
I/O 4
REF 1
I/O 6
REF 2
I/O 5
January 1998 - Ed: 4
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DALC112S1
TYPICALAPPLICATION
Vcc
DALC112S1
ABSOLUTEMAXIMUM RATINGS
Symbol Parameter Value Unit
V
RRM
T
stg
T
j
ELECTRICALCHARACTERISTICS
Symbol Parameter Typ. Max. Unit
V
F
I
R
C
Fig1 :
Inputcapacitancemeasurement
Peak reversevoltage per diode 18 V
Storagetemperaturerange
Maximumjunctiontemperature
Forwardvoltage IF= 50 mA 1.3 V
Reverseleakage currentper diode VR=15V 2
InputcapacitancebetweenLine and GND
V
= 5 V, V
cc
(seefigure 1 below)
RMS
(T
=25°C).
amb
=25°C).
(T
amb
= 30mV, F = 1 MHz
-55 to + 150
150
7pF
°C
°C
µ
A
2/3
I/O
G
REF2
REF1
V
CC
+VCCconnectedbetween REF1 and REF2
Input applied :
Vcc = 5V, V
RMS=30mV,F=1MHz
ORDERCODE
DALC112S1
DALC 1 12 S 1 RL
DiodeArray
Low
Capacitance
Version
RL = tape&reel (2500pcs).
= tube(100 pcs).
SO8Package
Nb.of Diodes
MARKING
Type Marking OrderCode Packaging(BaseQty)
DALC112S1 DALC12 DALC112S1
DALC112S1RL
PACKAGEMECHANICAL DATA
SO8(Plastic)
REF. DIMENSIONS
tube(100)
tape& reel(2500)
Millimetres Inches
Min. Typ. Max. Min. Typ. Max.
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
S8°(max)
PACKAGING: Preferredpackagingis tapeand reel.
Informationfurnished is believed tobe accurateand reliable. However, STMicroelectronics assumes no responsibilityfor the consequences of
use of suchinformation nor forany infringementof patents orother rights of thirdparties 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. Thispublication supersedes andreplaces all informationpreviouslysupplied.
STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
1998 STMicroelectronics- Printed in Italy- All rights reserved.
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