SMDA05C-5TB [SEMTECH]
Bidirectional TVS Array for Protection of Five Lines; 双向TVS阵列为保护五行型号: | SMDA05C-5TB |
厂家: | SEMTECH CORPORATION |
描述: | Bidirectional TVS Array for Protection of Five Lines |
文件: | 总7页 (文件大小:163K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
SMDA05C-5 THRU SMDA24C-5
Bidirectional TVS Array
for Protection of Five Lines
PROTECTION PRODUCTS
Features
Description
The SMDAxxC-5 series of transient voltage suppres-
sors are designed to protect components which are
connected to data and transmission lines from voltage
surges caused by ESD (electrostatic discharge), EFT
(electrical fast transients), and lightning.
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 Small SO-8 surface mount package
u Protects five 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 characterized by their high surge
capability, low operating and clamping voltages, and
fast response time. This makes them ideal for use as
board level protection of sensitive semiconductor
components. The SMDAxxC-5 is designed to provide
transient suppression on multiple data lines and I/O
ports. The low profile SO-8 design allows the user to
protect up to five data and I/O lines with one package.
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 SMDAxxC-5 TVS diode array will meet the surge
requirements of IEC 61000-4-2 (Formerly IEC 801-2),
Level 4, Human Body Model for air and contact
discharge.
Applications
u RS-232 & RS-422 Data Lines
u Microprocessor Based Equipment
u LAN/WAN Equipment
u Notebooks, Desktops, & Servers
u Instrumentation
u Peripherals
u Set Top Box
u Serial and Parallel Ports
Schematic & PIN Configuration
SO-8 (Top View)
www.semtech.com
Revision 9/2000
1
SMDA05C-5 THRU SMDA24C-5
PROTECTION PRODUCTS
Absolute Maximum Rating
Rating
Peak Pulse Power (tp = 8/20µs)
Lead Soldering Temperature
Operating Temperature
Symbol
Ppk
Value
300
Units
Watts
°C
TL
260 (10 sec.)
-55 to +125
-55 to +150
TJ
°C
Storage Temperature
TSTG
°C
Electrical Characteristics
SMDA05C-5
Parameter
Symbol
VRWM
VBR
IR
Conditions
Minimum
Typical
Maximum
Units
Reverse Stand-Off Voltage
Reverse Breakdown Voltage
Reverse Leakage Current
Clamping Voltage
5
V
V
It = 1mA
6
VRWM = 5V, T=25°C
IPP = 1A, tp = 8/20µs
tp = 8/20µs
20
9.8
17
µA
V
VC
Maximum Peak Pulse Current
Junction Capacitance
IPP
A
Cj
Between I/O Pins and
Gnd
350
pF
VR = 0V, f = 1MHz
SMDA12C-5
Parameter
Symbol
VRWM
VBR
IR
Conditions
Minimum
Typical
Maximum
Units
V
Reverse Stand-Off Voltage
Reverse Breakdown Voltage
Reverse Leakage Current
Clamping Voltage
12
It = 1mA
16.7
V
VRWM = 12V, T=25°C
IPP = 1A, tp = 8/20µs
tp = 8/20µs
1
µA
V
VC
19
Maximum Peak Pulse Current
Junction Capacitance
IPP
12
A
Cj
Between I/O Pins and
Gnd
120
pF
VR = 0V, f = 1MHz
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ã 2000 Semtech Corp.
2
SMDA05C-5 THRU SMDA24C-5
PROTECTION PRODUCTS
Electrical Characteristics
SMDA15C-5
Parameter
Symbol
VRWM
VBR
IR
Conditions
Minimum
Typical
Maximum
Units
V
Reverse Stand-Off Voltage
Reverse Breakdown Voltage
Reverse Leakage Current
Clamping Voltage
15
It = 1mA
16.7
V
VRWM = 15V, T=25°C
IPP = 1A, tp = 8/20µs
tp = 8/20µs
1
µA
V
VC
24
10
75
Maximum Peak Pulse Current
Junction Capacitance
IPP
A
Cj
Between I/O Pins and
Gnd
pF
VR = 0V, f = 1MHz
SMDA24C-5
Parameter
Symbol
VRWM
VBR
IR
Conditions
Minimum
Typical
Maximum
Units
V
Reverse Stand-Off Voltage
Reverse Breakdown Voltage
Reverse Leakage Current
Clamping Voltage
24
It = 1mA
26.7
V
VRWM = 24V, T=25°C
IPP = 1A, tp = 8/20µs
tp = 8/20µs
1
43
5
µA
V
VC
Maximum Peak Pulse Current
Junction Capacitance
IPP
A
Cj
Between I/O Pins and
Gnd
50
pF
VR = 0V, f = 1MHz
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ã 2000 Semtech Corp.
3
SMDA05C-5 THRU SMDA24C-5
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 (Per 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
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ã 2000 Semtech Corp.
4
SMDA05C-5 THRU SMDA24C-5
PROTECTION PRODUCTS
Applications Information
Device Connection for Protection of Five Data Lines
Circuit Diagram
The SMDAxxC-5 is designed to protect up to 5 data or
I/O lines. They are bidirectional devices and may be
used on lines where the signal polarities are above and
below ground.
The SMDAxxC-5 TVS arrays employ a monolithic struc-
ture. Therefore, the working voltage (VRWM) and break-
down voltage (VBR) specifications apply to the differen-
tial voltage between any two data line pins. For ex-
ample, the SMDA24C-5 is designed for a maximum
voltage excursion of +/-12V between any two data
lines.
The device is connected as follows:
l
Pins 1, 2, 3, 4, and 5 are connected to the lines
that are to be protected. Pin 8 is 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. Pins 6 and 7 are not connected.
Connection Diagram
DATA IN
DATA OUT
8
7
6
5
Circuit Board Layout Recommendations for Suppres-
sion of ESD.
Good circuit board layout is critical for the suppression
of ESD induced transients. The following guidelines are
recommended:
4
1
2
3
l
l
l
l
Place the TVS near the input terminals or connec-
tors 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.
DATA IN
DATA OUT
l
l
Never run critical signals near board edges.
Use ground planes whenever possible.
www.semtech.com
ã 2000 Semtech Corp.
5
SMDA05C-5 THRU SMDA24C-5
PROTECTION PRODUCTS
Outline Drawing - SO-8
Land Pattern - SO-8
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ã 2000 Semtech Corp.
6
SMDA05C-5 THRU SMDA24C-5
PROTECTION PRODUCTS
Ordering Information
Working
Part Number
Qty per
Reel
Reel Size
Voltage
SMDA05C-5.TB
SMDA05C-5.TE
SMDA12C-5.TB
SMDA12C-5.TE
SMDA15C-5.TB
SMDA15C-5.TE
SMDA24C-5.TB
SMDA24C-5.TE
5V
500
2,500
500
7 Inch
13 Inch
7 Inch
5V
12V
12V
15V
15V
24V
24V
2,500
500
13 Inch
7 Inch
2,500
500
13 Inch
7 Inch
2,500
13 Inch
Note:
(1) No suffix indicates tube pack.
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
相关型号:
SMDA05C-7E3
Trans Voltage Suppressor Diode, 300W, 5V V(RWM), Bidirectional, 7 Element, Silicon, PLASTIC, SO-8
MICROSEMI
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