SD15C [SEMTECH]
Single Line TVS Diode for ESD Protection in Portable Electronics; 便携式电子单线TVS二极管的ESD保护
| 型号： | SD15C |
| 厂家： | 
SEMTECH CORPORATION |
| 描述： | Single Line TVS Diode for ESD Protection in Portable Electronics |
| 文件： | 总7页 (文件大小：145K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SD05C THRU SD24C
Single Line TVS Diode for ESD
Protection in Portable Electronics
PROTECTION PRODUCTS
Features
Description
The SDxxC TVS diodes are designed to replace multi-
layer varistors (MLVs) in portable applications such as
cell phones, notebook computers, and PDAs. They
offer superior electrical characteristics such as lower
clamping voltage and no device degradation when
compared to MLVs. The SDxxC series TVS diodes are
designed to protect sensitive semiconductor compo-
nents from damage or upset due to electrostatic
discharge (ESD) and other voltage induced transient
events.
u 350 Watts peak pulse power (tp = 8/20µs)
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 Suitable replacement for MLVs in ESD protection
applications
u Protects one I/O or power line
u Low clamping voltage
u Working voltages: 5V, 12V, 15V, 24V
u Low leakage current
u Solid-state silicon avalanche technology
The SDxxC is in a SOD-323 package and will protect
one bidirectional line. They are available with working
voltages of 5 - 24 volts. These devices will fit on the
same PCB pad area as an 0805 MLV device. They give
the designer the flexibility to protect one line in applica-
tions where arrays are not practical. Additionally, it
may be sprinkled around the board in applications
where board space is at a premium.
Mechanical Characteristics
u EIAJ SOD-323 package
u Molding compound flammability rating: UL 94V-0
u Marking : Marking code
u Packaging : Tape and Reel per EIA 481
They may may be used to meet the ESD immunity
requirements of IEC 61000-4-2, Level 4 (15kV air, 8kV
contact discharge).
Applications
u Cell Phone Handsets and Accessories
u Microprocessor based equipment
u Personal Digital Assistants (PDAs)
u Notebooks, Desktops, & Servers
u Portable Instrumentation
u Pagers
u Peripherals
Schematic & PIN Configuration
1
2
SOD-323 (Top View)
www.semtech.com
Revision 9/2000
1
SD05C THRU SD24C
PROTECTION PRODUCTS
Absolute Maximum Rating
Rating
Peak Pulse Power (tp = 8/20µs)
Peak Pulse Current (tp = 8/20µs)
ESD Voltage (HBM Waveform per IEC 61000-4-2)
Lead Soldering Temperature
Symbol
Ppk
Value
350
Units
Watts
A
IPP
24
VPP
30
kV
TL
260 (10 sec.)
-55 to +125
-55 to +150
°C
Operating Temperature
TJ
°C
Storage Temperature
TSTG
°C
Electrical Characteristics
SD05C TVS for 5V Lines
Parameter
Reverse Stand-Off Voltage
Reverse Breakdown Voltage
Reverse Leakage Current
Clamping Voltage
Symbol
VRWM
VBR
IR
Conditions
Minimum
Typical
Maximum
Units
5
V
V
It = 1mA
6
VRWM = 5V, T=25°C
IPP = 5A, tp = 8/20µs
IPP = 24A, tp = 8/20µs
VR = 0V, f = 1MHz
10
9.8
µA
V
VC
Clamping Voltage
VC
14.5
200
V
Junction Capacitance
Cj
pF
SD12C TVS for 12V Lines
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
VR = 0V, f = 1MHz
1
µA
V
VC
19
24
Clamping Voltage
VC
V
Junction Capacitance
Cj
100
pF
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ã 2000 Semtech Corp.
2
SD05C THRU SD24C
PROTECTION PRODUCTS
Electrical Characteristics (Continued)
SD15C TVS for 15V Lines
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
VR = 0V, f = 1MHz
1
µA
V
VC
24
29
75
Clamping Voltage
VC
V
Junction Capacitance
Cj
pF
SD24C TVS for 24V Lines
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
VR = 0V, f = 1MHz
1
µA
V
VC
40
44
50
Clamping Voltage
VC
V
Junction Capacitance
Cj
pF
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ã 2000 Semtech Corp.
3
SD05C THRU SD24C
PROTECTION PRODUCTS
Typical Characteristics
Non-Repetitive Peak Pulse Power vs. Pulse Time
10
Power Derating Curve
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 ( s)
µ
Pulse Waveform
Clamping Voltage vs. Peak Pulse Current
110
30
25
20
15
10
5
Waveform
Parameters:
tr = 8µs
td = 20µs
Waveform
Parameters:
100
90
80
70
60
50
40
30
20
10
0
SD12C
tr = 8µs
td = 20µs
e-t
SD05C
td = IPP/2
0
5
10
15
20
25
30
0
Time (µs)
0
5
10
15
20
25
30
Peak Pulse Current -Ipp (A)
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ã 2000 Semtech Corp.
4
SD05C THRU SD24C
PROTECTION PRODUCTS
Applications Information
Device Connection Options
Device Schematic & Pin Configuration
The SDxxC TVS diodes are designed to protect one
data, I/O, or power supply line. The device is designed
to replace multi-layer varistors (MLVs) in portable
applications. It is easily implemented on existing 0805
MLV pads and is only slightly larger than 0603 MLV
pads. The device is bidirectional and may be used on
lines where the signal polarity is above and below
ground. The device is symmetrical, so there is no
cathode band.
Size Comparison to 0805 MLV
Circuit Board Layout Recommendations for Suppres-
sion of ESD.
Good circuit board layout is critical for the suppression
of fast rise-time transients such as ESD. The following
guidelines are recommended (Refer to application note
SI99-01 for more detailed information):
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.
The ESD transient return path to ground should
be kept as short as possible.
Place a TVS & decoupling capacitor between
power and ground of components that may be
vulnerable to electrostatic discharges to the
ground plane.
SOD-323
0805 MLV
Note: Nominal dimensions in inches
Component Placement Comparison
l
Minimize all conductive loops including power
and ground loops.
l
l
l
l
Use multilayer boards when possible.
Minimize interconnecting line lengths
Never run critical signals near board edges.
Fill unused portions of the PCB with ground
plane.
0805 MLV on
0805 Solder Pad
SOD-323 on 0805
MLV Pad
SOD-323 on Recommended
(SOD-323) Solder Pad
www.semtech.com
ã 2000 Semtech Corp.
5
SD05C THRU SD24C
PROTECTION PRODUCTS
Outline Drawing - SOD-323
Land Pattern - SOD-323
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ã 2000 Semtech Corp.
6
SD05C THRU SD24C
PROTECTION PRODUCTS
Marking Codes
Marking
Part Number
Code
SD05C
SD12C
SD15C
SD24C
5/5
6/6
7/7
8/8
Ordering Information
Part
Number
Working
Voltage
Qty per
Reel
Reel Size
SD05C.TC
SD05C.TG
SD12C.TC
SD12C.TG
SD15C.TC
SD15C.TG
SD24C.TC
SD24C.TG
5V
3,000
10,000
3,000
7
13
7
5V
12V
12V
15V
15V
24V
24V
10,000
3,000
13
7
10,000
3,000
13
7
10,000
13
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：
SD15C.TG
Trans Voltage Suppressor Diode, 350W, 15V V(RWM), Bidirectional, 1 Element, Silicon, PLASTIC PACKAGE-2
SEMTECH
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