Miniature TVS Diodes for Wireless Applications

Since the introduction of the world’s smallest TVS diode
Typical applications protected by INFINEON TVS dio-
back in 2007, INFINEON has greatly enlarged its portfolio
des include (see also Table 1):
of small and thin TVS diodes. Today INFINEON continues
successfully supporting the miniaturization’s roadmap of
 USB 3.0/USB 2.0, HDMI 1.3/1.4, DisplayPort and DVI
modern wireless electronics with more and more products
 FM radio, mobile TV and GPS antenna systems.
suited for the most challenging applications.
 Audio lines, microphone, speaker, headset.
 Trackball, keypad, keyboard, power lines.
These diode devices are used for reliable ESD system
level protection in a variety of electronic products (see
Common Strategy for Efficient ESD Protection
graph with target applications).
Infineon’s diodes are designed to exceed the maximum
External interfaces such as connectors and antenna sys-
level (level 4: ±8kV contact discharge, ±15kV air dischar-
tems are common entry points for electrostatic discharges.
ge) specified by IEC61000-4-2 industry standard. For in-
In today’s highly susceptible electronics, ESD represents a
stance, Infineon TVS diodes are specified to endure mul-
threat to system reliability. Therefore efficient protection of
tiple ESD events of ±20kV and up to ±30kV (see Table 1)
critical pins via external diode devices is compulsory.
without requiring supplementary components.
Table 1 - Applications, part names and parameters. For further information please refer to data sheets.
Application
Examples
Audio/Speaker
Headset Lines
Trackball
Keypad/Keyboard
Power Lines
USB2.0/3.0
HDMI1.3/1.4
DisplayPort
DVI
GPS antenna
FM radio antenna
DVB-T/H w/o GSM
UWB w/o GSM
ESD
Ipp
Protected
IEC 61000-4-2 IEC61000-4-5
lines
contact [kV]
(8/20µs) [A]
Infineon
Part Name
VRWM
[V]
Vc (2) [V]
IR
Ct
[pF]
Package
ESD5V3S1B-02LS (4)
±5.3
1
16.5
2
15 (max)
1uA max
20 (max)
TSSLP-2
(0201)
ESD5V3S1U-02LS (4)
+5.3
1
16.5
2
15 (max)
0.1uA max
40 (max)
TSSLP-2
ESD8V0R1B-02LS
-8/14
1
15
1
23
<1nA
4.0
TSSLP-2
ESD5V3S1B-02LRH
±5.3
1
20
5.5
11
1uA max
17
TSLP-2
ESD5V3S1U-02LRH
+5.3
1
20
5.5
11
1uA max
35
TSLP-2
ESD5V3L1U-02LRH
+5.3
1
30
6
10
<1nA
1.0
TSLP-2
ESD8V0L1B-02LRH
-8/14
1
25
2.5
26/20 @±15kV(3)
<1nA
8.5
TSLP-2
ESD8V0R1B-02LRH
-8/14
1
15
1
23
<1nA
4.0
TSLP-2
<1nA
4.0
TSLP-3
26/20 @±15kV
(3)
ESD8V0L2B-03L
-8/14
2
15
1
ESD5V3U1U-02LS
+5.3
1
20
3
12
<10 nA
0.4
TSSLP-2
ESD3V3U1U-02LS
+5.3
1
20
3
12
<1 nA
0.4
TSSLP-2
ESD5V3U1U-02LRH
+5.3
1
20
3
12
<10 nA
0.4
TSLP-2
ESD3V3U1U-02LRH
+5.3
1
20
3
12
<1 nA
0.4
TSLP-2
ESD5V3U2U-03RLH
+5.3
2
20
3
12
<1 nA
0.4
TSLP-3
ESD0P2RF-02LS
±5.3
1
20
3
16
<1 nA
0.2 (1GHz)
TSSLP-2
(0201)
ESD0P2RF-02LRH
±5.3
1
20
3
16
<1 nA
0.2 (1GHz)
TSLP-2
ESD5V3L1U-02LRH
+5.3
1
30
6
10
<1nA
1.0
TSLP-2
ESD0P8RFL
50
1
20
10
12
100nA (max)
0.8 (1GHz)
ESD0P4RFL
50
1
15
5
6
20nA
0.4 (1GHz)
TSLP-4
(0402)
TSLP-4
(0402)
Typical values are given unless other indicated.
(1) Line to ground capacitance at 0V and 1MHz unless indicated.
(2) Ipp according to IEC61000-4-5 unless indicated by (3)
(3) VESD according to IEC61000-4-2, see data sheets.
(4) Preliminary data
In addition to surviving multiple electrostatic discharge
State of the art Infineon TVS diodes have dynamic re-
events without degradation, an efficient protection device
sistance values down to 0.27  (Figure 2) at all transient
must be able to successfully shunt the dangerous ESD
current levels, resulting in extremely low and stable clam-
current from the downstream equipment being protected.
ping voltages with response times far below 1ns. This key
Therefore, the clamping behavior of the protection device
feature confirms Infineon TVS diodes as the ideal solution
has to match to the protected equipment in order to assure
for protection of low voltage signal lines in wireless applica-
that the current through the protected I/O pins is minimi-
tions.
zed. Very low dynamic resistance relative to the protected
system and very fast response time are two prime charac-
Infineon offers a variety of 0201 and 0402 EIA-equivalent
teristics that protection devices must provide to accomplish
devices designed to protect one or two data lines with a
this task.
single component. Depending on the diode type, these
Figure 2 - TLP plot and dynamic resistance of an Infineon TVS diode compared to ceramic
multilayer varistors (MLV). TLP parameters: 50 , 30ns pulse width, 0.6ns pulse rise time.
devices are suited to protect exposed pins in applications
Because of their small size with underneath electrode pad
having signal voltage levels swinging around zero as well
design these devices boast true space savings in highly
as those lines with unipolar voltage levels. All Infineon TVS
populated PCB boards.
diodes protect against ESD strikes in both positive and
negative directions.
Package height is a key element in the design of modern
electronic equipment. With only 0.39 mm (0402) and
As with other Infineon’s TVS diodes, all these products
0.31mm (0201) thickness these packages are the solution
endure multi-ESD strikes without requiring supplementary
of preference for many major manufacturers of slim electro-
components. In terms of ESD absorption capability these
nics.
devices are specified to exceed the toughest industry standard IEC61000-4-2 level 4 (see Table 1).
TSSLP-2 and TSLP-2 diode packages are ROHS and
Halogen-Free compliant. They are suited for all variations
Miniature Designs with World’s Smallest TVS Diodes
Available in 0201 and 0402 EIA-equivalent packages, these TVS diodes measure just 0.62 x 0.32 mm for TSSLP-2
(thin super-small leadless package) and 1.00 x 0.60 mm
for TSLP-2 (thin small leadless package). See Figure 1.
of pick-and-place assembly.
Features & Benefits
Figure 2 - TSSLP-2 and TSLP-2 single line packages.
 World's Smallest TVS Packages: EIA 0201 and EIA 0402 equivalent.
 Excellent ESD absorption capability of up to ±30kV contact discharge.
 Series suitable for protection of two lines with one device.
 Capacitance range down to 0.2pF typical and 0.4pF maximum.
 Leakage current down to 0.1nA typ, max 50nA to extend battery's duration.
Lowest and stable capacitance for optimal eye pattern
by small components in routine operating mode. Infineon
quality
TVS diodes with leakage currents down to less than 1nA
(Table 1) and maximum specified as 50nA (see data
Compliance with high speed data transmission require-
sheets) represent a significant benefit for battery-powered
ments in high frequency applications like USB 3.0, HDMI
electronics.
1.3 / 1.4 and also in antenna applications requires the minimization of parasitic capacitance effects along the entire
Supply’s Excellence
application’s frequency range.
As for all Infineon products, all these miniaturized TVSA major issue typical of low capacitance protection devices
protection devices come with the same superior quality
designed for protection of high frequency interfaces is their
level and benefit from the advantages that only a proven
drawback
high volume system supplier can provide.
in
ESD
clamping
performance.
Common
examples of these products are multilayer varistors (MLV)
and polymer suppressors.
Further Product information
Infineon’s technology overcomes this problem making
www.infineon.com/tvsdiodes
possible ultralow parasitic capacitance values down to
0.2pF (1MHz) while ensuring very low clamping voltages
www.infineon.com/tvs.appnotes
(Table 1).
Longer battery’s duration
AUTHORS:
Today’s market, growing towards portable electronics,
Eliana Brzozowski
demands much less power consumption and extended
Product Marketing Manager for TVS Diode Solutions, Infineon AG Germany.
battery duration more now than ever before. New electronic design is looking to reduce the leakage current drained
Kelly Miller
Regional Marketing Manager, Infineon North America Corp .
Imprint - August 2010
Published by Infineon Technologies AG,
81726 München, Germany
© 2010 Infineon Technologies AG
All Rights Reserved.
DISCLAIMER
The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics. With
respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without
limitation, warranties of non-infringement of intellectual property rights of any third party.
INFORMATION
For further information on technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies Office (www.infineon.com).
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please contact the nearest Infineon Technologies Office.
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