Application guide

ESD protection – USB 3.2
Protected connection for mobile devices

Contents
The new Type-C connector................................................................. 3

Introducing USB

Categories of USB data lines to protect .......................................... 4Single-line protection concept .......................................................... 5
Multi-line protection concept ........................................................... 6
Common mode filter with ESD protection concept ....................... 7

The Universal Serial Bus (USB), one of the industry’s
most widely used standard for data transfer.

Application of the USB Type-C connector ....................................... 8Product selection for data lines......................................................... 9
Product selection for Vbus / Vbat protection ................................... 10NameProtocol

Max. data rate

Enhanced SuperSpeed

USB 3.2

20 Gbit/s *SuperSpeed+

USB 3.1

10 Gbit/s

ESD protection for USB 3.2: signal integrity ................................. 11SuperSpeed

USB 3.0

5 Gbit/s

System-level ESD protection for USB 3.2 ...................................... 12Hi-Speed

USB 2.0

480 Mbit/s

Common mode filters for USB 2.0 and USB 3.2 ............................ 16

Full Speed

USB 1.1

12 Mbit/s

Low Speed

USB 1.01,5 Mbit/s* USB 3.2 is doubling the data rate by utilizing all Tx and Rx lines of USB Type-C

This application guide covers:
Solutions for USB ESD protection(USB 3.2, 3.1, 2.0, Supply voltage configuration)

ESD protection – USB 3.2 Application guide2

The new Type-C connector... was introduced as a part of the new USB 3.2 specification.

Plug front view... will make USB 3.2 very attractive for portable devices:›› Very small outline›› Connector can be plugged in using either orientation›› Higher charging currents possible›› Eliminates the need for a second data connector

A12 A11 A10
GND RX2+ RX2-A9A8
VBUS SBU1

A12 A11 A10
GND RX2+ RX2-A9A8
VBUS SBU1A7D-GND TX2+ TX2B1
B2B3

VBUS
B4CC2
B5

D+B6

GND TX2+ TX2B1
B2
B3

VBUS
B4CC2
B5A7
D-A5
CC1

A4
VBUS

A3A2
A1
TX1- TX1+ GND

A6
D+A5
CC1

A4
VBUS

A3A2
A1
TX1- TX1+ GND

DB7

SBU2 VBUS
B8B9RX1- RX1+ GND
B10 B11 B12

SBU2 VBUS
B8B9RX1- RX1+ GND
B10 B11 B12A6D+A plug row
Receptacle
B plug row

Receptacles in italics

PlugReceptacle

Plug front viewRX1- RX1+ GND
B10 B11 B12

SBU2 VBUS
B8B9CC2B5

VBUS
B4GND TX2+ TX2B1
B2B3

A12 A11 A10
GND RX2+ RX2-A9A8
VBUS SBU1

A7
D-A6
D+A5
CC1

A4
VBUS

A3A2
A1
TX1- TX1+ GND

GND TX2+ TX2B1
B2
B3

VBUS
B4D+B6

DB7

SBU2 VBUS
B9B8

RX1- RX1+ GND
B10 B11 B12A9A8
VBUS SBU1A12 A11 A10
GND RX2+ RX2-A7D-A6D+CC2
B5

B plug row
Receptacle
A plug row

A5CC1A4VBUS

A3A2A1
TX1- TX1+ GND

Receptacles in italics

ESD protection – USB 3.2 Application guide3Categories of USB data lines to protect
Trends in system-level ESD protection

USB data lines of this category

System-level ESD requirements

Data rate

Data rate requirements

High-speed ESD protection
with optional common
mode filters- Extremely sensitive SoCs

- Tx +/-, Rx +/-, D +/-- Extremely low clamping- SCRs- Low dynamic resistance- High surge robustness- 480 Mbit/s to 20 Gbit/sand increasing- RF-friendly routing mandatory- Integrated concept for target
data rate

Low-speed ESD protection- Very sensitive SoCs

- SBU, CC-Very low clamping (protection
with low Vbr and low Rdyn)- Very high surge robustness- Low- RF friendly routing advisable
to minimize influence on
high-speed lines

Vbus surge protection- Increasing energies of possible
surge pulses- Type-C allows higher energies- Vbus- Extremely high surge robustness- DC- None

ESD protection – USB 3.2 Application guide4Single-line protection concept
USB SuperSpeed interface
Vbus

Hi-speed USB
interface

A12 A11 A10
GND RX2+ RX2-A9A8
VBUS SBU1A7
D-GND TX2+ TX2B1
B2
B3

VBUS
B4CC2
B5

D+B6

A6
D+A5
CC1

A4
VBUS

A3
A2
A1
TX1- TX1+ GND

DB7

SBU2 VBUS
B8
B9

RX1- RX1+ GND
B10 B11 B12Type-C receptacle back side view
(matching to plug)

Super/ Hi-speed ESD protection

Hi-speed USB
interface

USB SuperSpeed interface

ESD protection – USB 3.2 Application guideVbus

Low-speed ESD protection

Vbus surge protection

5Multi-line protection concept
USB SuperSpeed interface
Vbus

Hi-speed USB
interface

A12 A11 A10
GND RX2+ RX2-A9A8
VBUS SBU1

A7
D-GND TX2+ TX2B1
B2
B3

VBUS
B4

PUSB3xx6
IP4283CZ10CC2
B5

D+B6

A6
D+A5
CC1

A4
VBUS

A3A2
A1
TX1- TX1+ GND

DB7

SBU2 VBUS
B8
B9

RX1- RX1+ GND
B10 B11 B12Type-C receptacle back side view
(matching to plug)

PUSB3xx4
Hi-speed ESD protection

Hi-speed USB
interface

USB SuperSpeed interface

ESD protection – USB 3.2 Application guideVbus

Low-speed ESD protection

Vbus surge protection

6Common mode filter with ESD protection concept
USB SuperSpeed interface
Vbus

Hi-speed USBinterface

A12 A11 A10
GND RX2+ RX2-A9A8
VBUS SBU1A7
D-GND TX2+ TX2B1
B2
B3

VBUS
B4CC2
B5

D+B6

A6
D+A5
CC1

A4
VBUS

A3A2
A1
TX1- TX1+ GND

DB7

SBU2 VBUS
B8B9RX1- RX1+ GND
B10 B11 B12Type-C receptacle back side view
(matching to plug)

High-speed ESD protection withoptional common mode ﬁlters

Hi-speed USB
interface

USB SuperSpeed interface

ESD protection – USB 3.2 Application guideVbus

Low-speed ESD protection

Vbus surge protection

7

Application of the USB Type-C connector
Single-line

Type-C plug

Multi-line

Plug front view

Type-C receptacle back side view
(matching to plug)
Common mode filter

USB Type-C test dongles
Nexperia has designed Type-C test dongles, which are using
protection and filtering solutions. They can be used for a quick
check of device suitability. They can also be used by RF boarddesigners for inspiration.
There are three test dongles:›› Single-line ESD protection›› Multi-line ESD protection›› Common mode filters with integrated ESD protection

ESD protection – USB 3.2 Application guide8Product selection for data lines

High-speed ESD protection with optionalcommon mode filters
Low-speed ESD protection

Type number

Application

No. ofprotectedlines

SuperSpeed HighSpeed
Tx/Rx +/D+/-PESD5V0C1BSF

ESD protection

1

yes

CC, SBU

yes

Configuration

Cd[typ](pF)

Packageversion

Package nameSize (mm)VESD
IEC61000-42 (kV)

IPPM
@8/20µs[max] (A)Bidirectional

0,2

SOD962-2DSN0603-2

0.6 x 0.3 x 0.3

20

9Very high robustness for single data lines

RemarksPESD5V0C1USF

ESD protection

1

yes

yes

Unidirectional

0,45

SOD962-2

DSN0603-2

0.6 x 0.3 x 0.3

209Extremely low clamping and high robustness
for single data-linesPESD3V3Z1BSF

ESD protection

1

yes

yes

Bidirectional

0,28

SOD962-2

DSN0603-2

0.6 x 0.3 x 0.3

20

9,5

Extremely low clamping and high robustness
for single data-linesPESD3V3W1BSF

ESD protection

1

yes

yes

Bidirectional

0,45

SOD962-2

DSN0603-20.6 x 0.3 x 0.3

30

> 15

Extremely low clamping and high robustness
for single data-linesPESD5V0H1BSF

ESD protection

1

yes

yes

Bidirectional

0,15

SOD962-2

DSN0603-2

0.6 x 0.3 x 0.3

157First offer for single data-linesPESD5V0R1BSF

ESD protection

1

yes

yes

Bidirectional

0,1

SOD962-2

DSN0603-2

0.6 x 0.3 x 0.3

104,5Extremely low capacitance for single data linesPESD5V0S1USF

ESD protection

1

yes

Unidirectional

35

SOD962

DSN0603-2

0.6 x 0.3 x 0.3

30

3,5

PESD5V0S1BSF

ESD protection

1

yes

Bidirectional

35

SOD962-2

DSN0603-2

0.6 x 0.3 x 0.3

308IP3319CX6Common mode
filter + ESD

2+1 *

yes

Unidirectional

0,3OL-IP3319CX6WLCSP60.95 x 1.34 x 0.6

15

6IP4283CZ10-TBR

ESD protection

4

yes

Unidirectional

0,6

SOT1176-1

DFN2510A-10

2.5 x 1.0 x 0.5

8>3

Allows a combination of CC/SBU protection

PCMF1USB3S

Common mode
filter + ESD

2

yes

yes

Unidirectional

0,3

WLCSP5_2-1-2

WLCSP50.77 x 1.17 x 0.57

157Very easy routing for USB Type-C connector

PCMF2USB3S

Common mode
filter + ESD

4

yes

yes

Unidirectional

0,3

WLCSP10_4-2-4

WLCSP10

1.57 x 1.17 x 0.57

15

7

Two line pairs

PCMF3USB3S

Common mode
filter + ESD

6

yes

yes

Unidirectional

0,3

WLCSP15_6-3-6

WLCSP15

2.37 x 1.17 x 0.57

15

7

Three line pairs

yes

PESD5V0V2BM

ESD protection

2

yes

Bidirectional

18SOT883

DFN1006-3

1.0 x 0.6 x 0.4830

9Extremely low clamping and robustness
for two data-linesPESD5V0V2BMB

ESD protection

2yes

Bidirectional

18SOT883B

DFN1006B-3

1.0 x 0.6 x 0.3730

9Extremely low clamping and robustness
for two data-linesPESD5V0X1BCAL ESD protection

1

yes

yes

Bidirectional

0,85

SOD882

DFN1006-2

1.0 x 0.6 x 0.5

15

1,8

PESD5V0X2UAM

ESD protection

2

yes

yes

Unidirectional

0,8

SOT883

DFN1006-3

1.0 x 0.6 x 0.48

152,50.37 thickness: …UAMB

PESD1USB3S

ESD protection

2

yes

yes

Unidirectional

0,3

WLCSP5_2-1-2

WLCSP50.77 x 1.17 x 0.57

157

Allows changing between ESD and filter

PESD2USB3S

ESD protection

4yes

yes

Unidirectional

0,3

WLCSP10_4-2-4

WLCSP10

1.57 x 1.17 x 0.57

157

Allows changing between ESD and filter

PESD3USB3S

ESD protection

6

yes

yes

Unidirectional

0,5

WLCSP15_6-3-6

WLCSP15

2.37 x 1.17 x 0.57

157

Allows changing between ESD and filter

PUSB3AB6

ESD protection

6

yes

yes

Bidirectional

0,15

SOT1358-1

XSON7

1.1 x 2.1 x 0.5

157

PUSB3FR4

ESD protection

4

yes

yes

Unidirectional

0,29

SOT1176-1

DFN2510A-10

2.5 x 1.0 x 0.5

157First offer for 4 data lines

PUSB3FR6ESD protection

6yesyes

Unidirectional

0,35

SOT1358-1

XSON71.1 x 2.1 x 0.5

157First offer for 6 data lines* On The Go

ESD protection – USB 3.2 Application guide9Product selection for Vbus / Vbat protection
8/20µs pulse

TypePTVS5V0Z1USKPVRWM (V)Ippm
8/20µs (A)5100

10/1000µs pulse

Vcl @ Ippm
8/20µs (V) max

Ippm
10/1000µs (A)20.4

23Vbus surge protection
Vcl @ Ippm
10/1000µs(V) max
11.4

PTVS5V0Z1USK580

182012PTVS7V5Z1USK

7.5

100

221713.5PTVS10VZ1USK

1075

2712.5

18.2

PTVS12VZ1USK

12652910.5

21.8

PTVS15VZ1USK

155236

7.5

27.4

PTVS18VZ1USK184144

6.4

32.8

PTVS20VZ1USK204148.3

636.9

PTVS22VZ1USK

2241

39.5

540

PTVS26VZ1USK

2632

57.5

4.5

46

8/20µs pulse

Type
PTVS7V5U1UPA

SOD964
DSN1608-2
1.6 x 0.8 x 0.29 mm

10/1000µs pulse

VRWM (V)IPPM[max] (A)Vcl @ IPPM
[max] (V)IPPM[max] (A)Vcl @ IPPM
[max] (V)7.5178

19.7

23.3

12.9PTVS10VU1UPA

10148

23

17.6

17PTVS12VU1UPA

12131

25.2

15.1

19.9

PTVS15VU1UPA

15111

28.8

12.3

24.4

PTVS18VU1UPA

189732

10.3

29.2

PTVS20VU1UPA

2098.5

38.7

9.2

32.5

PTVS22VU1UPA

2288.5

418.4

35.5

PTVS24VU1UPA

2479

44.2

7.7

38.8

PTVS26VU1UPA

2669

43.5

742.1

ESD protection – USB 3.2 Application guideAll devices offer 30 kV ESD ruggedness.

SOT1061
DFN2020-3
2.0 x 2.0 x 0.65 mm

10ESD protection for USB 3.2: signal integrity
Eye diagramsDifferential signals are applied to the Device-Under-Test (DUT).
An overlay of sweeps of different 0-1 and 1-0 transitions is shownin the eye diagram:›› Due to imperfections and suppression of higher harmonics,

USB 3.1 / 3.2
10 Gbpsthe signal after a system looks like an eye – hence the nameof the measurement›› A mask, that surrounds the eye but is not touched by it,
defines the maximum allowed signal degradation thatis acceptable to all receivers›› Differential signals are measured after a comparator
USB 3.1 / 3.2
5 GbpsUSB 2.0ESD protection – USB 3.2 Application guide11System-level ESD protection for USB 3.2
Protection of the SoC

System-level test

With system-level ESD protection, the greater part of an ESD pulse
is kept away from the protected System-on-Chip (SoC) and signal
integrity is maintained for all frequencies used in the application.
System-level protection can be improved by providing fast diodereaction time, low dynamic resistance, deep snap-back and low
inductance package concepts. An eye diagram for the highest
frequency used by the application will show the signal integrity
Walso with onboard.

›› Stresses the pins with an ESD gun until an increase in leakage

ESDcurrent shows signs of failure which is the most straight forward
way to measure system-level robustness›› In Nexperia tests on commonly available USB applications, the USB
system chip failed but the ESD protection remained undamaged›› System level protection is achieved by reducing the ESD stress on
the system:- Deep snap-back- Low dynamic resistance- Fast diode switching time
- Low inductance package concept

Remaining
Clampingvoltage

I/O
Best-in-class protection
diodes absorb as muchof the pulse energy as
possible to protect theSoC from damage

ESD protection – USB 3.2 Application guideSoC12

System-level ESD protection for USB 3.2
TLP measurements
Transmission Line Pulse (TLP) measurements are a way tocharacterize the I(V) behaviour of ESD protection devices without
overstressing them. First, a defined transmission-line is charged.
Next, this line is discharged over the Device Under Test (DUT),
which can be a single component or a complete system. Current andclamping voltage are recorded, with a pair of single current (voltage)
measurements forming one point in the TLP diagram. The leakage
current is measured after each discharge to establish any signs ofdamage to the DUT.

The dynamic resistance Rdyn is derived
from the steepness of the TLP graph:
V/ I
For each TLP measurement voltage
and current samples are averaged
over 20 ns and denoted as single pointin the TLP graph.

ESD protection – USB 3.2 Application guide13System-level ESD protection for USB 3.2
Very-fast TLP (vfTLP) measurements(5 ns pulse)

Comparing the TLP I(V) behaviour of three bi-directional ESD protectiondevices with SCR for USB 3.2. Nexperia offers the lowest clamping voltages,
leading to the best system-level protection.

Comparing three bi-directional SCR ESD protection devices for USB 3.2
in their vfTLP behaviour. Nexperia‘s SCR is the only device, which triggers
for vfTLP pulses. Untriggered, the system-level protection is reduced tothe level of a standard device.

303025252020vfTLP current (A)TLP current (A)Transmission Line Pulse (TLP) measurements(100 ns pulse)

Nexperia
Other -1 [A]

15

Other -2 [A]1050Nexperia
Other -1 [A]

15

Other -2 [A]105051015TLP Voltage (V)ESD protection – USB 3.2 Application guide2025300051015202530

vfTLP Voltage (V)14

System-level ESD protection for USB 3.2
Comparing switching speeds of three SCR devices for 5 ns very-fast
TLP (vfTLP) measurements @ 1 A vfTLP. Nexperia offers the only SCR
in this comparison, which triggers for very fast pulses.

Comparing switching speeds for 100 ns TLP measurements @ 10 A TLP
Nexperia offers the shortest switching times to the lowest clamping
voltage compared to the next best devices on the market.

3020

Nexperia 1,8 ns

2515Voltage (V)Voltage (V)

20

15

10

Other -1

6,2 nsOther -2

7,6 ns105

50

Nexperia

0

100 %-5550Time (ns)100150-54202

4

630 %

870 - 90 % pulse window
average value as 0 % ref. forfalling edge

Time (ns)TLP pulse
600 ps rise time
100 ns pulse width

30 %0%values at TLP = 4 A and 16 At-switch

aaa-025769

Measurement of switching time
(turn-on time) based on vfTLP test pulse

ESD protection – USB 3.2 Application guide15

Common mode filters for USB 2.0 and USB 3.2
Common mode filters for USB›› Increased integration, in portable devices,
Diﬀerential mode signals will pass the ﬁlter
Diﬀerential mode (signal)
S-Parameter S21dd

Common mode (noise)
S-Parameter S21cc
0-3 dB loss

Common mode Pass-Band

Common mode ﬁlter

Attenuation |S21| (dB)of different signals in the Gigahertz range has
led to higher demands for EMI suppression›› Nexperia offers a selection of common modefilters with integrated ESD protection to protect
and filter USB 2.0 and 3.x interfaces›› Details are in our dedicated application guidefor common mode filters

Diﬀerential mode Pass-Band

Unwanted common mode signals will be attenuated

ESD protection – USB 3.2 Application guide

0.1

1

10100

1000

10000

Frequency (MHz)16

Common mode filters for USB 2.0 and USB 3.2
IP3319CX6 for USB 2.0 OTG(On-The-Go)
Key features:

IP3319CX6 insertion losses for diﬀerential and common modes›› Common mode filter for one differential line pair›› 3-line ESD protection for one line pair plus one

aaa-006138

0αil(dB)pin (ID for OTG)›› Best common mode protection in this footprint›› Best-in-class ESD protection due to deepsnap-back and very low Rdyn›› Very compact WLCSP6 package:›› 0.95 x 1.34 x 0.57 mm(1)-6-12(2)(2)-18-24-30
105

106

107

108

109f (Hz)1010

Typical IP3319CX6 application using Micro USB connector Type Bto USB controller
C2
diﬀerential
data lines

A2
B2C2{ A1B1+5V

Micro USB
type B
1Pin A2, B2: D+/D- (can be swapped)
Pin C2: ID for USB On-The-Go

IP3319CX6

USB 2.0 eye diagram with IP3319CX6 on test board

C1
Bump A1
index area
1

Transparent top view
solder balls facing down

2
AESD protection – USB 3.2 Application guide

BC17

Common mode filters for USB 2.0 and USB 3.2
PCMFxUSB3y for USB 3
Key features:›› Common mode filter with ESD protection for one,
two and three differential line-pairs›› Extremely wide differential pass band of 6.5 GHz›› Very wideband common mode suppression
between 0.7 to 10 GHz›› Excellent system-level ESD protection due to- Very fast ESD diode switching speeds- Very deep snap-back- Very low dynamic resistance- Low inductance WLCSP package›› Extremely strong common mode suppression
for the 5 Gbps USB3 fundamental @ 2.5 GHz

0Diﬀerential Passband-5-10-15

Mag S21dd
Mag S21cc

Common moderejection-20-25-30
-35
-40
-45
1,0E+07

ESD protection – USB 3.2 Application guide

1,0E+09Frequency (Hz)USB 3.1 / 3.2 eye @5 Gbps PCMFxUSB3y

USB 3.1 / 3.2 eye @10 Gbps PCMFxUSB3y

1,0E+08

5-Ball CSP, 1 channel

10-Ball CSP, 2 channels

15-Ball CSP, 3 channels

0.8 x 1.2 mm

1.6 x 1.2 mm

2.4 x 1.2 mm

18Notes

ESD protection – USB 3.2 Application guide19© 2017 Nexperia B.V.
All rights reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does
not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for anyconsequence of its use. Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights.

nexperia.com

Date of release:
November 2017
Printed:In the Netherlands