SMDA15TB
更新时间:2024-09-18 02:17:17
品牌:SEMTECH
描述:Unidirectional TVS Array for Protection of Four Lines
SMDA15TB 概述
Unidirectional TVS Array for Protection of Four Lines 单向TVS阵列的保护四行
SMDA15TB 数据手册
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PDF下载SMDA05 THRU SMDA24
Unidirectional TVS Array
for Protection of Four Lines
PROTECTION PRODUCTS
Features
Description
The SMDAxx series of TVS arrays are designed to provide
undirectional protection for sensitive electronics from
damage or latch-up due to ESD, lightning and other
voltage-induced transient events. Each device will
protect four data or I/O lines. They are available with
operating voltages of 5V, 12V, 15V and 24V.
u Transient protection for data lines to
IEC 61000-4-2 (ESD) 15kV (air), 8kV (contact)
IEC 61000-4-4 (EFT) 40A (5/50ns)
IEC 61000-4-5 (Lightning) 12A (8/20µs)
u Undirectional protection
u Small SO-8 package
u Protects four I/O lines
u Working voltages: 5V, 12V, 15V and 24V
u Low leakage current
u Low operating and clamping voltages
u Solid-state silicon avalanche technology
TVS diodes are solid-state devices designed specifically
for transient suppression. They offer desirable charac-
teristics for board level protection including fast re-
sponse time, low operating and clamping voltage and no
device degradation. The low profile SO-8 package allows
the user to protect up to four independent lines with one
package. The SMDAxx series is suitable protection for
sensitive semiconductors components such as micropro-
cessors, ASICs, transceivers, transducers, and CMOS
memory.
Mechanical Characteristics
u JEDEC SO-8 package
u Molding compound flammability rating: UL 94V-0
u Marking : Part number, date code, logo
u Packaging : Tube or Tape and Reel per EIA 481
The SMDAxx series devices may be used to meet the
ESD immunity requirements of IEC 61000-4-2, level 4 for
air and contact discharge.
Applications
u RS-232 data lines
u Microprocessor based equipment
u Notebooks, Desktops, & Servers
u Instrumentation
u LAN/WAN equipment
u Peripherals
u Serial and Parallel Ports
Schematic & PIN Configuration
1
8
2
3
7
6
4
5
SO-8 (Top View)
www.semtech.com
Revision 9/2000
1
SMDA05 THRU SMDA24
PROTECTION PRODUCTS
Absolute Maximum Rating
Rating
Peak Pulse Power (tp = 8/20µs)
ESD Voltage (HBM per (IEC 61000-4-2)
Lead Soldering Temperature
Operating Temperature
Symbol
Value
300
Units
Watts
kV
Ppk
>25
TL
TJ
260 (10 sec.)
-55 to +125
-55 to +150
°C
°C
Storage Temperature
TSTG
°C
Electrical Characteristics
SMDA05
Parameter
Reverse Stand-Off Voltage
Reverse Breakdown Voltage
Reverse Leakage Current
Clamping Voltage
Symbol
Conditions
Minimum
Typical
Maximum
Units
VRWM
VBR
IR
5
V
V
It = 1mA
6
VRWM = 5V, T=25°C
IPP = 1A, tp = 8/20µs
IPP = 5A, tp = 8/20µs
tp = 8/20µs
20
9.8
11
µA
V
VC
Clamping Voltage
VC
V
Maximum Peak Pulse Current
Junction Capacitance
IPP
17
A
Cj
VR = 0V, f = 1MHz
400
pF
SMDA12
Parameter
Symbol
VRWM
VBR
IR
Conditions
Minimum
Typical
Maximum
Units
Reverse Stand-Off Voltage
Reverse Breakdown Voltage
Reverse Leakage Current
Clamping Voltage
12
V
V
It = 1mA
13.3
VRWM = 12V, T=25°C
IPP = 1A, tp = 8/20µs
IPP = 5A, tp = 8/20µs
tp = 8/20µs
1
19
24
µA
V
VC
Clamping Voltage
VC
V
Maximum Peak Pulse Current
Junction Capacitance
IPP
12
150
A
Cj
VR = 0V, f = 1MHz
pF
www.semtech.com
ã 2000 Semtech Corp.
2
SMDA05 THRU SMDA24
PROTECTION PRODUCTS
Electrical Characteristics (Continued)
SMDA15
Parameter
Reverse Stand-Off Voltage
Reverse Breakdown Voltage
Reverse Leakage Current
Clamping Voltage
Symbol
VRWM
VBR
IR
Conditions
Minimum
Typical
Maximum
Units
15
V
V
It = 1mA
16.7
VRWM = 15V, T=25°C
IPP = 1A, tp = 8/20µs
IPP = 5A, tp = 8/20µs
tp = 8/20µs
1
24
µA
V
VC
Clamping Voltage
VC
30
10
V
Maximum Peak Pulse Current
Junction Capacitance
IPP
A
Cj
VR = 0V, f = 1MHz
100
pF
SMDA24
Parameter
Symbol
VRWM
VBR
IR
Conditions
Minimum
Typical
Maximum
Units
Reverse Stand-Off Voltage
Reverse Breakdown Voltage
Reverse Leakage Current
Clamping Voltage
24
V
V
It = 1mA
26.7
VRWM = 24V, T=25°C
IPP = 1A, tp = 8/20µs
IPP = 5A, tp = 8/20µs
tp = 8/20µs
1
43
55
5
µA
V
VC
Clamping Voltage
VC
V
Maximum Peak Pulse Current
Junction Capacitance
IPP
A
Cj
VR = 0V, f = 1MHz
60
pF
www.semtech.com
ã 2000 Semtech Corp.
3
SMDA05 THRU SMDA24
PROTECTION PRODUCTS
Typical Characteristics
Non-Repetitive Peak Pulse Power vs. Pulse Time
Power Derating Curve
10
110
100
90
80
70
60
50
40
30
20
10
0
1
0.1
0.01
0
25
50
75
100
125
150
0.1
1
10
100
1000
Ambient Temperature - TA (oC)
Pulse Duration - tp (µs)
Pulse Waveform
110
100
90
80
70
60
50
40
30
20
10
0
Waveform
Parameters:
tr = 8µs
td = 20µs
e-t
td = IPP/2
0
5
10
15
20
25
30
Time (µs)
ESD Pulse Waveform (IEC 61000-4-2)
IEC 61000-4-2 Discharge Parameters
Level
First
Peak
Peak
Test
Test
Peak
Current
Current
Voltage
(Contact
Voltage
(Air
Current at 30 ns at 60 ns
Discharge) Discharge)
(A)
7.5
(A)
4
(A)
8
(kV)
(kV)
1
2
3
4
2
2
15
22.5
30
8
4
6
8
4
6
8
4
8
12
16
15
www.semtech.com
ã 2000 Semtech Corp.
4
SMDA05 THRU SMDA24
PROTECTION PRODUCTS
Applications Information
Device Connection for Protection of Four Data Lines
Circuit Diagram
The SMDAxx series devices are designed to protect up to
four data lines. The devices are connected as follows:
1
8
l
The SMDAxx are unidirectional devices and are
designed for use on lines where the normal operat-
ing voltage is above ground. Pins 1, 2, 3, and 4 are
connected to the protected lines. Pins 5, 6, 7, and 8
are connected to ground. The ground connections
should be made directly to the ground plane for best
results. The path length is kept as short as possible
to reduce the effects of parasitic inductance in the
board traces.
2
3
7
6
4
5
Circuit Board Layout Recommendations for Suppres-
sion of ESD.
I/O Line Protection
Good circuit board layout is critical for the suppression of
ESD induced transients. The following guidelines are
recommended:
l
l
l
l
Place the TVS near the input terminals or connectors
to restrict transient coupling.
Minimize the path length between the TVS and the
protected line.
Minimize all conductive loops including power and
ground loops.
The ESD transient return path to ground should be
kept as short as possible.
l
l
Never run critical signals near board edges.
Use ground planes whenever possible.
Typical Connection
To Protected
Device
1
2
8
7
Ground
3
4
6
5
From Connector
www.semtech.com
ã 2000 Semtech Corp.
5
SMDA05 THRU SMDA24
PROTECTION PRODUCTS
Outline Drawing - SO-8
Land Pattern - SO-8
www.semtech.com
ã 2000 Semtech Corp.
6
SMDA05 THRU SMDA24
PROTECTION PRODUCTS
Ordering Information
Working
Voltage
Qty per
Part Number
Reel Size
Reel
500
500
500
500
SMDA05.TB
SMDA12.TB
SMDA15.TB
SMDA24.TB
5V
7 Inch
7 Inch
7 Inch
7 Inch
12V
15V
24V
Note:
(1) No suffix indicates tube pack.
(2) Consult factory for availability of 13 Inch reels.
Contact Information
Semtech Corporation
Protection Products Division
652 Mitchell Rd., Newbury Park, CA 91320
Phone: (805)498-2111 FAX (805)498-3804
www.semtech.com
ã 2000 Semtech Corp.
7
SMDA15TB 相关器件
型号 | 制造商 | 描述 | 价格 | 文档 |
SMDA24 | MICROSEMI | TVSarray Series | 获取价格 | |
SMDA24 | MCC | TVSarray Series | 获取价格 | |
SMDA24 | SEMTECH | Unidirectional TVS Array for Protection of Four Lines | 获取价格 | |
SMDA24 | SECOS | Transient Voltage Suppressors | 获取价格 | |
SMDA24 | PROTEC | 500 WATT MULTI-LINE TVS ARRAY | 获取价格 | |
SMDA24-6 | MICROSEMI | TVSarray Series | 获取价格 | |
SMDA24-6 | MCC | TVSarray Series | 获取价格 | |
SMDA24-6 | PROTEC | 300 WATT MULTI-LINE TVS ARRAY | 获取价格 | |
SMDA24-6-G | SENSITRON | Trans Voltage Suppressor Diode, 300W, 24V V(RWM), Unidirectional, 6 Element, Silicon, LEAD FREE, SO-8 | 获取价格 | |
SMDA24-6-LF-T7 | PROTEC | Trans Voltage Suppressor Diode, 300W, 24V V(RWM), Unidirectional, 6 Element, Silicon, SOP-8 | 获取价格 |
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