Texas Instruments TVS 0 Series, TVS140 Series, TVS180 Series, TVS220 Series, TVS270 Series User Manual
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User's Guide
SLVUBJ8–October 2018
Flat Clamp TVS Evaluation Module—Adaptor Boards
This user's guide describes the characteristics, operation, and use of the TVSxx0x Precision Surge
Protection Diode Adaptor Board Evaluation Module (EVM). The TVSxx0x family of devices are precision
clamps that keep ultra-low and flat clamping voltages during transient overvoltage events like surge for
both bidirectional and unidirectional signals. These adaptor boards place the small DRV package size of
the TVSxx00 device and the small DRB package size of the TVSxx01 device into a larger footprint that is
designed to fit into industry standard SMA and SMB package types and allow users to test performance in
their own systems. This user's guide includes setup instructions, schematic diagrams, a bill of materials,
and printed-circuit board layout drawings for the EVM.
Contents
1 Introduction ................................................................................................................... 2
2 Board Setup .................................................................................................................. 2
2.1 Surge Testing ....................................................................................................... 3
2.2 ESD Testing ......................................................................................................... 4
3 Schematic..................................................................................................................... 5
4 Layout ......................................................................................................................... 9
5 Bill of Materials ............................................................................................................. 10
1 Unidirectional Adapter Board............................................................................................... 2
2 Bidirectional Adapter Board ................................................................................................ 2
3 Surge Test Setup Unidirectional Configuration.......................................................................... 3
4 TVS3300 35-A Surge Clamping Waveforms............................................................................. 3
5 FLAT-CLAMP-TVS-EVM Board ........................................................................................... 4
6 TVS0500 Schematic......................................................................................................... 5
7 TVS0701 Schematic......................................................................................................... 5
8 TVS140X Schematic ........................................................................................................ 5
9 TVS180X Schematic ........................................................................................................ 5
10 TVS220X Schematic ........................................................................................................ 6
11 TVS270X Schematic ........................................................................................................ 6
12 TVS330X Schematic ........................................................................................................ 7
13 Evaluation Module Top Layer.............................................................................................. 9
14 Evaluation Module Bottom Layer .......................................................................................... 9
1 Evaluation Module Bill of Materials ...................................................................................... 10
Trademarks
All trademarks are the property of their respective owners.
List of Figures
List of Tables
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Flat Clamp TVS Evaluation Module—Adaptor Boards
Copyright © 2018, Texas Instruments Incorporated
1
200 mil
(5mm)
SOLDER
SOLDER
Bidirectional
Adapter Board
145 mil
(3.7mm)
50 mil
(1.27mm)
200 mil
(5mm)
SOLDERSOLDER
Unidirectional
Adapter Board
105 mil
(2.6mm)
55 mil
(1.4mm)
85 mil
(2.16mm)
Introduction
1 Introduction
Texas Instrument’s TVSxx0x evaluation module helps designers evaluate the operation and performance
of the TVSxx0x family of devices. The TVSxx0x family is a precision clamp that keeps ultra-low and flat
clamping voltage during transient overvoltage events like surge. With TI’s precision surge technology, the
TVSxx0x's clamping voltage barely changes up to its maximum surge current. The TVSxx0x also
responds fast to the surge to limit overshoot voltage during clamping. Used in the system, its superior
voltage suppression performance ensures a safe environment for downstream protected circuits.
2 Board Setup
The Flat Clamp Adaptor Board EVM is designed to allow the user to evaluate the protection performance
of the TVSxx0x in their own system without having to make any changes to their existing schematic or
layout. The EVM serves as an adaptor board to allow the small size of the QFN chip to be placed pin for
pin in the industry standard SMA and SMB surge protector footprints. Users can easily replace their
existing surge solution chip with the TVS3300 EVM to evaluate the component.
This EVM kit contains 36 adapter boards with 6 boards for each of the TVSxx0x voltage levels. 3 adapter
boards per voltage level are in unidirectional configuration and 3 adapter boards per voltage level are in
bidirectional configuration. Based on their system, the user must use the unidirectional configuration if the
signal on the protected line stays above 0 V. Otherwise, it is recommended to use the bidirectional
configuration, which can protect the system if the signal contains both positive and negative voltages.
The unidirectional adapter boards are all 105mil x 200mil (2.6mm x 5mm) and the bidirectional adapter
boards are 145mil by 200mil (3.7mm x 5mm). The solderable pad underneath each adapter board is 85mil
x 55mil for the unidirectional and 145mil x 50mil for the bidirectional. This can be seen in the figures
below.
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2
Figure 1. Unidirectional Adapter Board
Figure 2. Bidirectional Adapter Board
Flat Clamp TVS Evaluation Module—Adaptor Boards
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Time (Ps)
Amplitude (V or A)
-20 -10 0 10 20 30 40 50 60 70 80
0
4
8
12
16
20
24
28
32
36
40
D006
Voltage (V)
Current (A)
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To install the EVM, remove the existing surge protection solution, cut out the adapter board needed for
your applications and place the adaptor board in the existing footprint. If there is no existing surge
protection solution in the system, the EVM can still be tested by soldering the bottom plates of the adaptor
board over the protected line and a ground plane. In the unidirectional configuration, pin 1 of the adapter
board must be installed pointing towards ground, pin 1 can be seen by the silkscreen bar on one side of
the unidirectional adaptor boards. In the bidirectional configuration either pin can be connected to ground
or input signal. Each adapter board has solder pads on the bottom extending to the edge allowing the
board to be soldered down.
2.1 Surge Testing
The adaptor provides an easy way to test the TVSxx0x surge protection as defined in IEC 61000-4-5.
Evaluate the TVSxx0x surge protection by exposing the protected line to a surge event. The event must
be created by a combinational waveform generator (CWG) in series with a 40-Ω coupling resistor as
shown in Figure 3. Test at different surge current levels and observe that the voltage on the line is
clamped to a safe level for the protected system. After the surge event, post-test the system to ensure that
no damage or shift in leakage currents occurred.
Board Setup
Figure 3. Surge Test Setup Unidirectional Configuration
The waveform in Figure 4 shows the response of the TVSxx0x Unidirectional adaptor board to a 30-A
surge waveform created by a similar setup as in Figure 3. Despite the 35 A of current over a IEC 61000-45 surge waveform, the TVS3300 holds the voltage on the line to a maximum of 37 V, robustly protecting
the downstream components.
Figure 4. TVS3300 35-A Surge Clamping Waveforms
This is just one of the 6 different voltage level devices on the adapter board with all of them having
superior clamping for their node.
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Board Setup
2.2 ESD Testing
The TVSxx0x devices also provides ESD protection above ±8-kV contact and ±15-kV air gap according to
the IEC 61000-4-2 standard. After installing the adaptor board into the system, evaluate the ESD
protection provided by the TVSxx0x by using an ESD simulator to create an ESD event on your protected
line. For specific information on ESD testing procedures, see the application report, IEC 61000-4-x Tests
for TI’s Protection Devices.
Figure 5 shows all the adapter boards that come in one evaluation module.
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Figure 5. FLAT-CLAMP-TVS-EVM Board
4
Flat Clamp TVS Evaluation Module—Adaptor Boards
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GND3
Protected Line3
Protected Line5
GND5
Protected Line7
GND7
IN
1
IN
2
IN
3
IN
4
GND
5
GND
6
GND
7
GND
8
NC
9
TVS0701DRBR
U4
IN
1
IN
2
IN
3
IN
4
GND
5
GND
6
GND
7
GND
8
NC
9
TVS0701DRBR
U5
IN
1
IN
2
IN
3
IN
4
GND
5
GND
6
GND
7
GND
8
NC
9
TVS0701DRBR
U6
GND
Protected Line
IN
4
IN
5
GND
1
GND
2
IN
6
GND
3
PAD
7
U1
TVS0500DRVR
GND1
Protected Line1
GND2
Protected Line2
IN
4
IN
5
GND
1
GND
2
IN
6
GND
3
PAD
7
U2
TVS0500DRVR
IN
4
IN
5
GND
1
GND
2
IN
6
GND
3
PAD
7
U3
TVS0500DRVR
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3 Schematic
Figure 6 through Figure 12 display the EVM schematics with each voltage node.
Schematic
Figure 6. TVS0500 Schematic Figure 7. TVS0701 Schematic
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