SL05.TC [SEMTECH]
Low Capacitance TVS Diode For High Speed Data Interfaces; 低电容TVS二极管用于高速数据接口型号: | SL05.TC |
厂家: | SEMTECH CORPORATION |
描述: | Low Capacitance TVS Diode For High Speed Data Interfaces |
文件: | 总7页 (文件大小:158K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
SL05 through SL24
Low Capacitance TVS Diode
For High Speed Data Interfaces
PROTECTION PRODUCTS
Features
Description
The SL series of TVS arrays are designed to protect
sensitive electronics from damage or latch-up due to
ESD, lightning, and other voltage-induced transient
events. They are available with operating voltages of
5V, 12V, 15V and 24V.
Transient protection for high-speed 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)
Small package for use in portable electronics
Two devices will protect one line
Low capacitance for high-speed data lines
Working voltages: 5V, 12V, 15V and 24V
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 SL series devices feature
a low capacitance, fast switching compensation diode
in series with a standard TVS diode. This effectively
reduces the overall capacitance of the device to less
than 5pF making it an integrated, low capacitance
solution for use on high-speed interfaces.
Mechanical Characteristics
JEDEC SOT23 package
Molding compound flammability rating: UL 94V-0
Marking : Marking Code
Packaging : Tape and Reel per EIA 481
The SL series devices may be used to meet the immu-
nity requirements of IEC 61000-4-2, level 4.
Applications
High-Speed data lines
Cellular handsets AND accessories
Universal Serial Bus (USB) port protection
Portable instrumentation
LAN/WAN equipment
Peripherals
Circuit Diagram
Schematic & PIN Configuration
1
3
(N.C.)
2
SOT23 Top View
www.semtech.com
Revision 09/23/04
1
SL05 through SL24
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
Ppk
Value
300
Units
Watts
kV
VESD
TL
>25
260 (10 sec.)
-55 to +125
-55 to +150
°C
TJ
°C
Storage Temperature
TSTG
°C
Electrical Characteristics
SL05
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
20
µA
V
VC
IPP = 1A,
9.8
tp = 8/20µs
Clamping Voltage
VC
IPP = 5A,
11
V
tp = 8/20µs
Peak Pulse Current
IPP
Cj
tp = 8/20µs
17
5
A
Junction Capacitance
Pin 1 to 2
pF
VR = 0V, f = 1MHz
SL12
Parameter
Reverse Stand-Off Voltage
Reverse Breakdown Voltage
Reverse Leakage Current
Clamping Voltage
Symbol
VRWM
VBR
Conditions
Minimum
Typical
Maximum
Units
12
V
V
It = 1mA
13.3
IR
VRWM = 12V, T=25°C
1
µA
V
VC
IPP = 1A,
19
tp = 8/20µs
Clamping Voltage
VC
IPP = 5A,
24
V
tp = 8/20µs
Peak Pulse Current
IPP
Cj
tp = 8/20µs
12
5
A
Junction Capacitance
Pin 1 to 2
pF
VR = 0V, f = 1MHz
www.semtech.com
2004 Semtech Corp.
2
SL05 through SL24
PROTECTION PRODUCTS
Electrical Characteristics (Continued)
SL15
Parameter
Reverse Stand-Off Voltage
Reverse Breakdown Voltage
Reverse Leakage Current
Clamping Voltage
Symbol
VRWM
VBR
Conditions
Minimum
Typical
Maximum
Units
15
V
V
It = 1mA
16.7
IR
VRWM = 15V, T=25°C
1
µA
V
VC
IPP = 1A,
24
tp = 8/20µs
Clamping Voltage
VC
IPP = 5A,
30
V
tp = 8/20µs
Peak Pulse Current
IPP
Cj
tp = 8/20µs
10
5
A
Junction Capacitance
Pin 1 to 2
pF
VR = 0V, f = 1MHz
SL24
Parameter
Symbol
VRWM
VBR
Conditions
Minimum
Typical
Maximum
Units
Reverse Stand-Off Voltage
Reverse Breakdown Voltage
Reverse Leakage Current
Clamping Voltage
24
V
V
It = 1mA
26.7
IR
VRWM = 24V, T=25°C
1
µA
V
VC
IPP = 1A,
43
tp = 8/20µs
Clamping Voltage
VC
IPP = 5A,
55
V
tp = 8/20µs
Peak Pulse Current
IPP
Cj
tp = 8/20µs
5
5
A
Junction Capacitance
Pin 1 to 2
pF
VR = 0V, f = 1MHz
www.semtech.com
2004 Semtech Corp.
3
SL05 through SL24
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
Waveform
100
90
80
70
60
50
40
30
20
10
0
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
www.semtech.com
2004 Semtech Corp.
4
SL05 through SL24
PROTECTION PRODUCTS
SL Connection Options
Applications Information
Device Connection for Protection of One High-Speed
Data Line
The SL series devices are designed to protect high-
speed data lines. The SLxx utilizes a low capacitance
compensation diode in series with, but in opposite
polarity to a TVS diode in each line to achieve an
effective capacitance of less than 5pF per device.
During a transient event, the internal rectifier must be
forward biased (TVS is reversed biased). Therefore,
each device will only suppress transient events in one
polarity. To achieve protection in both positive and
negative polarity, a second device is connected in anti-
parallel to the first. On unidirectional lines, a fast
switching steering diode may be used as an alternative
to using two SL devices.
Two Devices : Bidirectional or Unidirectional Line
The options for connecting the devices are as follows:
z
Low capacitance protection of one high-speed
line: Protection of one unidirectional or bidirec-
tional high-speed line is achieved by connecting two
devices in anti-parallel. Pin 1 of the first device is
connected to the line and pin 2 is connected to
ground (or to a second line for differential protec-
tion). Pin 2 of the second device is connected to
line 1 and pin 1 is connected to ground (or line 2)
as shown. Pin 3 is not connected. During positive
duration transients, the first device will conduct
from pin 1 to 2. The steering diode conducts in the
forward direction while the TVS will avalanche and
conduct in the reverse direction. During negative
transients, the second device will conduct in the
same manner. For optimum protection, 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. The path length
between the TVS and the protected line should
also be minimized.
One Devices with Steering Diode : Unidirectional Line
I/O Line Protection
Matte Tin Lead Finish
Matte tin has become the industry standard lead-free
replacement for SnPb lead finishes. A matte tin finish
is composed of 100% tin solder with large grains.
Since the solder volume on the leads is small com-
pared to the solder paste volume that is placed on the
land pattern of the PCB, the reflow profile will be
determined by the requirements of the solder paste.
Therefore, these devices are compatible with both
lead-free and SnPb assembly techniques. In addition,
unlike other lead-free compositions, matte tin does not
have any added alloys that can cause degradation of
the solder joint.
z
Connection Option for Unidirectional Lines Only:
An optional method for protecting unidirectional
(normal signal polarities above ground) lines is to
add a fast switching steering diode in parallel to the
SL TVS. Input/outputs are connected to pin 1 of
the SL device and the cathode of the rectifier. The
anode of the diode and pin 2 of the SL TVS are
connected to ground.
www.semtech.com
2004 Semtech Corp.
5
SL05 through SL24
PROTECTION PRODUCTS
Outline Drawing - SOT23 3L
A
D
DIMENSIONS
INCHES
MILLIMETERS
DIM
e1
MIN NOM MAX MIN NOM MAX
-
-
-
-
A
.035
.000
.044 0.89
.004 0.01
1.12
0.10
H
3
A1
B
A2 .035 .037 .040 0.88 0.95 1.02
-
-
-
-
b
.012
.003
.020 0.30
.007 0.08
0.51
0.18
c
GAUGE
PLANE
c
0
D
E
.110 .114 .120 2.80 2.90 3.04
SEATING
PLANE
.082 .093 .104 2.10 2.37 2.64
E
E1
E1 .047 .051 .055 1.20 1.30 1.40
0.25
C
e
.075
.037
1.90 BSC
0.95 BSC
L
L1
e1
L
.015 .020 .024 0.40 0.50 0.60
.022
(0.55)
L1
N
DETAIL A
3
3
-
-
1
2
0
0°
8°
0°
8°
aaa
.004
.008
0.10
0.20
bbb
bxN
bbb
C A B
e
A2
A
aaa
C
3X
SEE DETAIL A
SIDE VIEW
SEATING PLANE
A1
C
NOTES:
1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES).
-H-
TO BE DETERMINED AT DATUM PLANE
DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS
OR GATE BURRS.
-A-
-B-
2.
3.
DATUMS
AND
Land Pattern - SOT23 3L
X
Y
DIMENSIONS
DIM
INCHES
MILLIMETERS
(.087)
.037
.075
.031
.039
.055
.141
(2.20)
0.95
1.90
0.80
1.00
1.40
3.60
C
E
Z
C
G
E1
G
X
Y
Z
Y
E
E1
NOTES:
THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY
1.
CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR
COMPANY'S MANUFACTURING GUIDELINES ARE MET.
REFERENCE IPC-SM-782A.
2.
www.semtech.com
2004 Semtech Corp.
6
SL05 through SL24
PROTECTION PRODUCTS
Marking Codes
Marking
Part Number
Code
SL05
SL12
SL15
SL24
L05
L12
L15
L24
Ordering Information
Lead
Part Number
Finish
Qty per Reel
Reel Size
SL05.TC
SL12.TC
SL15.TC
SL24.TC
SL05.TCT
SL12.TCT
SL15.TCT
SL24.TCT
SnPb
SnPb
3,000
3,000
3,000
3,000
3,000
3,000
3,000
3,000
7 Inch
7 Inch
7 Inch
7 Inch
7 Inch
7 Inch
7 Inch
7 Inch
SnPb
SnPb
Pb Free
Pb Free
Pb Free
Pb Free
Contact Information
Semtech Corporation
Protection Products Division
200 Flynn Road, Camarillo, CA 93012
Phone: (805)498-2111 FAX (805)498-3804
www.semtech.com
2004 Semtech Corp.
7
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