SMS15CTC [SEMTECH]
TVS Diode Array For ESD and Latch-Up Protection; TVS二极管阵列用于ESD和闩锁保护
| 型号： | SMS15CTC |
| 厂家： | 
SEMTECH CORPORATION |
| 描述： | TVS Diode Array For ESD and Latch-Up Protection |
| 文件： | 总7页 (文件大小：165K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SMS05C THRU SMS24C
TVS Diode Array
For ESD and Latch-Up Protection
PROTECTION PRODUCTS
Features
Description
The SMS series of TVS arrays are designed to protect
sensitive electronics from damage or latch-up due to
ESD and other voltage-induced transient events. Each
device will protect up to five lines. They are available
with operating voltages of 5V, 12V, 15V and 24V. They
are unidirectional devices and may be used on lines
where the signal polarities are above ground.
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) 24A (8/20µs)
u Small package for use in portable electronics
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 solid-state devices designed specifically
for transient suppression. They feature large cross-
sectional area junctions for conducting high transient
currents. They offer desirable characteristics for board
level protection including fast response time, low
operating and clamping voltage and no device degrada-
tion.
Mechanical Characteristics
u EIAJ SOT23-6L package
u Molding compound flammability rating: UL 94V-0
u Marking : Marking Code
The SMS series devices may be used to meet the
immunity requirements of IEC 61000-4-2, level 4. The
low cost SOT23-6L package makes them ideal for use
in portable electronics such as cell phones, PDAs, and
notebook computers.
u Packaging : Tape and Reel per EIA 481
Applications
u Cell phone Handsets and Accessories
u Microprocessor Based Equipment
u Personal Digital Assistants (PDAs)
u Notebooks, Desktops, and Servers
u Portable Instrumentation
u Set Top Box
u Peripherals
u MP3 Players
u Cordless Phones
Circuit Diagram
Schematic & PIN Configuration
SOT23-6L (Top View)
www.semtech.com
Revision 9/2000
1
SMS05C THRU SMS24C
PROTECTION PRODUCTS
Absolute Maximum Rating
Rating
Peak Pulse Power (tp = 8/20µs)
Peak Pulse Current (tp = 8/20µs)
Peak Forward Voltage (IF=1A, tp=8/20µs)
Lead Soldering Temperature
Operating Temperature
Symbol
Ppk
Value
300
Units
Watts
A
IPP
24
VFP
1.5
V
TL
260 (10 sec.)
-55 to +125
-55 to +150
°C
TJ
°C
Storage Temperature
TSTG
°C
Electrical Characteristics
SMS05C
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 = 5A, tp = 8/20µs
IPP = 24A, tp = 8/20µs
20
9.8
µA
V
VC
Clamping Voltage
VC
14.5
400
V
Junction Capacitance
Cj
Between I/O Pins and
Gnd
325
pF
VR = 0V, f = 1MHz
SMS12C
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
13.3
V
VRWM = 12V, T=25°C
IPP = 5A, tp = 8/20µs
IPP = 15A, tp = 8/20µs
1
µA
V
VC
19
Clamping Voltage
VC
23
V
Junction Capacitance
Cj
Between I/O Pins and
Gnd
135
150
pF
VR = 0V, f = 1MHz
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ã 2000 Semtech Corp.
2
SMS05C THRU SMS24C
PROTECTION PRODUCTS
Electrical Characteristics (Continued)
SMS15C
Parameter
Reverse Stand-Off Voltage
Reverse Breakdown Voltage
Reverse Leakage Current
Clamping Voltage
Symbol
VRWM
VBR
IR
Conditions
Minimum
Typical
Maximum
Units
V
15
It = 1mA
16.7
V
VRWM = 15V, T=25°C
IPP = 5A, tp = 8/20µs
IPP = 12A, tp = 8/20µs
1
µA
V
VC
24
Clamping Voltage
VC
29
V
Junction Capacitance
Cj
Between I/O Pins and
Gnd
100
125
pF
VR = 0V, f = 1MHz
SMS24C
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 = 5A, tp = 8/20µs
IPP = 8A, tp = 8/20µs
1
µA
V
VC
40
44
75
Clamping Voltage
VC
V
Junction Capacitance
Cj
Between I/O Pins and
Gnd
60
pF
VR = 0V, f = 1MHz
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ã 2000 Semtech Corp.
3
SMS05C THRU SMS24C
PROTECTION PRODUCTS
Typical Characteristics
Non-Repetitive Peak Pulse Power vs. Pulse Time
Power Derating Curve
110
100
90
80
70
60
50
40
30
20
10
0
10
1
0.1
0.01
0
25
50
75
100
125
150
0.1
1
10
100
1000
Pulse Duration - tp ( s)
Ambient Temperature - TA (oC)
µ
Pulse Waveform
Clamping Voltage vs. Peak Pulse Current
110
45
Waveform
Parameters:
tr = 8µs
td = 20µs
Waveform
Parameters:
100
90
80
70
60
50
40
30
20
10
0
40
35
30
25
20
15
10
5
SMS24C
tr = 8 s
µ
td = 20 s
µ
e-t
SMS15C
SMS12C
td = IPP/2
SMS05C
0
0
5
10
15
20
25
30
0
5
10
15
20
25
30
Peak Pulse Current - IPP (A)
Time (µs)
Forward Voltage vs. Forward Current
5
4.5
4
3.5
3
2.5
2
1.5
1
Waveform
Parameters:
tr = 8 s
µ
0.5
0
td = 20 s
µ
0
5
10
15
20
25
30
35
40
45
Forward Current - IF (A)
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ã 2000 Semtech Corp.
4
SMS05C THRU SMS24C
PROTECTION PRODUCTS
Applications Information
Device Connection for Protection of Five Data Lines
SMSxxC Circuit Diagram
The SMSxxC is designed to protect up to five unidirec-
tional data lines. The device is connected as follows:
1. Unidirectional protection of five I/O lines is
achieved by connecting pins 1, 3, 4, 5 and 6 to the
data lines. Pin 2 is connected to ground. The
ground connection 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.
Circuit Board Layout Recommendations for Suppres-
sion of ESD.
Protection of Five Unidirectional Lines
Good circuit board layout is critical for the suppression
of ESD induced transients. The following guidelines are
recommended:
l
l
l
l
Place the SMSxxC near the input terminals or
connectors to restrict transient coupling.
Minimize the path length between the SMSxxC 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.
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ã 2000 Semtech Corp.
5
SMS05C THRU SMS24C
PROTECTION PRODUCTS
Outline Drawing - SOT23-6L
Land Pattern - SOT23-6L
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ã 2000 Semtech Corp.
6
SMS05C THRU SMS24C
PROTECTION PRODUCTS
Marking Codes
Marking
Part Number
Code
SMS05C
SMS12C
SMS15C
SMS24C
C05
C12
C15
C24
Note:
Pin 1 Identified with a dot.
Ordering Information
Working
Part Number
Qty per
Reel
Reel Size
Voltage
SMS05C.TC
SMS05C.TG
SMS12C.TC
SMS12CTG
SMS15C.TC
SMS15C.TG
SMS24C.TC
SMS24C.TG
5V
3,000
10,000
3,000
7 Inch
13 Inch
7 Inch
5V
12V
12V
15V
15V
24V
24V
10,000
3,000
13 Inch
7 Inch
10,000
3,000
13 Inch
7 Inch
10,000
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
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