DA112S1.pdf 데이터시트 (총 5 페이지) - 파일 다운로드 DA112S1 데이타시트 다운로드

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Application Specific Discretes
A.S.D.TM
APPLICATION
Protection of logic side of ISDN S-interface.
Protection of I/O lines of microcontroller.
Signal conditioning.
DA108S1
DA112S1
DIODE ARRAY
SO8
FEATURES
ARRAY OF 8 OR 12 DIODES
LOW INPUT CAPACITANCE
SUITABLE FOR DIGITAL LINE PROTECTION
FUNCTIONAL DIAGRAM : DA108S1
I/O 1 1
I/O 2 2
8 REF 1
7 REF 1
DESCRIPTION
ARRAY of 8 or 12 diodes configured by cells of 2
diodes, each cell being used to protect signal line
from transient overvoltages by clamping action.
I/O 3 3
I/O 4 4
6 REF 2
5 REF 2
COMPLIES WITH FOLLOWING STANDARDS :
IEC1000-4-22level 4: 15kV (air discharge)
8kV (contact discharge)
FUNCTIONAL DIAGRAM : DA112S1
I/O 1 1
8 REF 1
I/O 2 2
7 I/O 6
I/O 3 3
6 REF 2
I/O 4 4
5 I/O 5
March 1998 - Ed:4
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DA108S1 / DA112S1
ABSOLUTE MAXIMUM RATINGS (Tamb = 25°C)
Symbol
Parameter
VRRM
IPP
P
Repetitivepeak reverse voltage(forone single diode)
Repetitive peak forward current *
8/20 µs
Power dissipation
Tstg
Storage temperature range
Tj Maximum operating junction temperature
TL Maximum lead temperature for soldering during 10s.
* The surge is repeated after the device returns to ambient temperature
Value
18
12
0.73
- 55 to + 150
150
260
Unit
V
A
W
°C
°C
THERMAL RESISTANCES
Symbol
Parameter
Rth (j-a)
Junction to ambient
Value
170
Unit
°C/W
ELECTRICAL CHARACTERISTICS (Tamb = 25°C)
Symbol
Parameter
VFP Peak forward voltage IPP = 12A, 8/20 µs
VF Forward voltage
IF = 50 mA
IR Reverse leakage current VR = 15V
DA108S1
DA112S1
Max.
9
12
1.2
2
Unit
V
V
µA
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Fig.1 : Input capacitance
DA108S1 / DA112S1
VCC connected between REF1 and REF2
Input applied :
36
DC bias + 950 mV(RMS) at 1 MHZ
34
C (pF)
REF2
32
30
Typical values
VCC = 5 V
VCC = 15 V
28
I/O
G
VCC
REF1
26
24
22
0 2 4 6 8 10 12 14 16
DC bias (V)
Fig.2 : Typical peak forward voltage characteristics (8/20µs pulse)
VF(V)
2.0
Typical values
1.8 Tj = 25 o C
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.001
0.01
IF(A)
0.1
VF(V)
10.0
Typical values
9.0 Tj = 25 o C
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
11
IF (A)
10 20
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DA108S1 / DA112S1
APPLICATION 1 : ISDN Interface Protection
Residual lightning surges at transformer secondary are suppressed by DA108S1
APPLICATION 2 : Microcontroller I/O port protection
Vcc
4-6 bit input port
I/O
Vcc
I/O
Vcc
I/O
Vcc
I/O
Vcc
µc
DA1xx S1
IMPORTANT : DA108S1 must imperatively be connected to the reference voltages by REF1 and REF2.
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ORDER CODE
DA108S1 / DA112S1
Diode ARRAY
Number of diodes
DA1 08
S 1 RL
RL : Tape and reel
: tubes
Package : SO8 plastic
Serial
MARKING : Logo, Data Code,
DA108S1
DA108S
DA112S1
DA112S
PACKAGE MECHANICAL DATA
SO8 (Plastic)
DIMENSIONS
REF. 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
S 8° (max)
Packaging: Preferencepackaging is tape and reel.
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics 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 SGS-THOMSON Microelectronics. Specifications mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectronics.
© 1998 SGS-THOMSON Microelectronics - Printed in Italy - All rights reserved.
SGS-THOMSON Microelectronics GROUP OF COMPANIES
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