CS0807S1
CitrusCom
Ultra-Low Capacitance TVS Protection
Features
Applications
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Transient protection for super-speed data lines
IEC 61000-4-2 (ESD) ±15kV (Air)
±8kV (Contact)
IEC 61000-4-4 (EFT) 40A (5/50 ns)
Cable Discharge Event (CDE)
ESD protection for super-speed differential signal
(above 5Gb/s) channels
Fast turn-on and low clamping voltage
Protects six data lines and one VCC line
Ultra-low capacitance: 0.25pF Typical
Low leakage current: 0.1μA @ VRWM (Typical)
Back-drive protection for power-down mode
Mechanical Characteristics
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Description
CS0807S1 is an ultra-low capacitance Transient
Voltage Suppressor (TVS) designed to provide
electrostatic discharge (ESD) protection for
super-speed data interfaces. With typical capacitance
of 0.25pF only, CS0807S1 is designed to protect
parasitic-sensitive systems against over-voltage and
over-current transient events. It complies with IEC
61000-4-2 (ESD), Level 4 (±15kV air, ±8kV contact
discharge), IEC 61000-4-4 (electrical fast transient EFT) (40A, 5/50 ns), very fast charged device model
(CDM) ESD and cable discharge event (CDE), etc.
1
2
3
4
5
6
GND
VCC
Pin Configuration
7
6
I/O_6
5
I/O_5
4
I/O_4
GND
3
I/O_3
8
I/O_2
VCC
2
I/O_1
1
03/30/2012
MSOP-8L package
Flammability Rating: UL 94V-0
Marking: Logo, Part number, Date
Packaging: Tape and Reel
Circuit Diagram
CS0807S1 uses an MSOP-8L package. Each
CS0807S1 device can protect six super-speed data
lines and one VCC line. The combined features of
ultra-low capacitance, small size and high ESD
robustness make CS0807S1 ideal for super-speed data
ports and high-frequency lines (e.g., HDMI & DVI)
applications. The low clamping voltage of the
CS0807S1 guarantees a minimum stress on the
protected IC.
Revision C
USB3.0 Power and Data Line Protection
Serial ATA
PCI Express
Desktops, Servers and Notebooks
MDDI Ports
Display Ports
High Definition Multi-Media Interface (HDMI)
Digital Visual Interfaces (DVI)
MSOP-8L
(Top View, not to scale)
1
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CS0807S1
CitrusCom
Ultra-Low Capacitance TVS Protection
Absolute Maximum Rating
Symbol
Parameter
Value
Units
±17
±12
kV
VESD
ESD per IEC 61000-4-2 (Air)
ESD per IEC 61000-4-2 (Contact)
TOPT
Operating Temperature
-55/+125
C
TSTG
Storage Temperature
-55/+150
C
Electrical Characteristics (T = 25C)
Symbol
Parameter
I
IPP
VRWM
Nominal Reverse Working Voltage
IR
Reverse Leakage Current @ VRWM
VBR
Reverse Breakdown Voltage @ IT
IT
Test Current for Reverse Breakdown
VC
Clamping Voltage @ IPP
IPP
Maximum Peak Pulse Current
CESD
VR
IT
IR
VC VBR VRWM
Parasitic Capacitance
IPP
Reverse Voltage
f
Small Signal Frequency
Symbol
Bi-Directional TVS
Test Condition
Minimum
Typical
Maximum
Units
5.0
V
0.1
1.0
μA
8.8
11
V
12
V
0.35
pF
VRWM
VRWM = 5V, T = 25C
Between Any Pin and GND
IT = 1mA
Between Any Pin and GND
IPP = 1A, tp = 8/20μs
Between Any Pin and GND
VR = 0V, f = 1MHz
Between Any Pin and GND
IR
VBR
VC
CESD
Revision C
VRWM VBR VC V
IR
IT
03/30/2012
6.0
0.25
2
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CS0807S1
CitrusCom
Ultra-Low Capacitance TVS Protection
Voltage Sweeping of I/O to I/O
Insertion Loss S21 of I/O to I/O
5.0
0.12
0.10
0.0
0.08
Insertion Loss (dB)
0.06
Current (A)
0.04
0.02
0.00
-0.02
-0.04
-5.0
-10.0
-15.0
-20.0
-0.06
-0.08
-25.0
-0.10
-0.12
-10
-8
-6
-4
-2
0
2
4
6
8
-30.0
1.00E+06
10
1.00E+07
1.00E+08
1.00E+09
1.00E+10
Frequency (Hz)
Voltage (V)
Capacitance vs. Voltage of I/O to I/O (f = 1MHz)
Capacitance vs. Reverse Voltage
Normalized Capacitance vs. Reverse Voltage
0.6
2.0
1.8
1.6
Normalized Capacitance
Capacitance (pF)
0.5
0.4
0.3
0.2
1.4
1.2
1.0
0.8
0.6
0.4
0.1
0.2
0.0
0.0
0
1
2
3
4
5
0
1
2
3
4
5
Reverse Voltage (V)
ESD Clamping of I/O to I/O
(-8kV Contact per IEC 61000-4-2)
60.0
20.0
50.0
10.0
40.0
0.0
.
ESD Clamping of I/O to I/O
(+8kV Contact per IEC 61000-4-2)
Clamping Voltage (V)
.
Clamping Voltage (V)
Reverse Voltage (V)
30.0
20.0
10.0
0.0
-10.0
-10.0
-20.0
-30.0
-40.0
-50.0
-20.0
-60.0
-50
0
50
100
150
200
-50
Time (ns)
Revision C
03/30/2012
0
50
100
150
200
Time (ns)
3
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CS0807S1
CitrusCom
Ultra-Low Capacitance TVS Protection
Application Information
Pin Connection in PCB
CS0807S1 provides ESD protection for six data lines
and one power rail line simultaneously. The pin
connection is shown in Figure 1.
Six parallel data lines, from inner IC to I/O port
connector, could connect to CS0807S1 six I/O pins
directly. Pin 7 of CS0807S1 is the GND pin, which
should connect to the GND of PCB. The wire should
be as short as possible in order to minimize the
parasitic inductance. Pin 8 of CS0807S1 is the VCC
pin, which should connect to the VCC rail of PCB.
In some cases, systems are not allowed to be reset or
restart after zapping ESD stress at the I/O port
connector. Under this situation, to enhance the
sustainable ESD level, a 0.1μF capacitor can be used
between the VCC and GND rails. Place the capacitor
as close as possible to CS0807S1.
In some cases, VCC rail is not presented on the PCB.
Under this situation, the pin 8 of CS0807S1 can be left
as floating. The pin connection is shown in Figure 2.
I/O1
To Connector
To Inner IC
I/O2
I/O3
VCC
8
1
0.1μF
2
7
3
6
GND
5
4
I/O4
To Connector
To Inner IC
I/O5
I/O6
Figure 1 CS0807S1 pin connection in PCB providing data lines
and power rail line protection.
I/O1
To Connector
To Inner IC
I/O2
I/O3
VCC floating
1
8
2
7
3
6
GND
5
4
I/O4
To Connector
To Inner IC
I/O5
I/O6
Figure 2 CS0807S1 pin connection in PCB providing data line protection.
VCC pin is left as floating when no VCC rail is presented in PCB.
Revision C
03/30/2012
4
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CS0807S1
CitrusCom
Ultra-Low Capacitance TVS Protection
Application Information
USB3.0 Protection for Super Speed Differential signals
CS0807S1 provides ESD protection for super-speed
data lines. Thus, a lot of kinds of high speed I/O ports
can be the applications of CS0807S1, especially, the
USB3.0 port.
USB3.0 is expected to transmit and receive above
5Gb/s data, which needs differential signaling. For
differential signaling, keep the differential impedance
at constant is the most importance.
ESD protection devices have an inherent junction
capacitance. Usually, this added capacitance on a
USB3.0 port will drop the impedance of the
differential pair to interfere with the signaling.
CS0807S1 presents only 0.35pF maximum
capacitance to each differential signal while being
rated to handle 8kV ESD contact/air discharges as
outlined in IEC 61000-4-2 and providing a low
clamping voltage to protect the downstream devices.
Therefore, CS0807S1 is the most suitable ESD
protector for USB3.0 I/O ports and other high speed,
above 5Gb/s, I/O ports in any electronic product.
Figure 3 shows the pin connection example for
USB3.0 I/O ports.
Vbus
Rx+
To Connector
To Inner IC
RxTx+
1
8
2
7
3
6
GND
5
4
TxTo Connector
To Inner IC
D+
D-
Figure 3 CS0807S1 pin connection for USB3.0 protection.
Revision C
03/30/2012
5
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CS0807S1
CitrusCom
Ultra-Low Capacitance TVS Protection
Package Outline
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MSOP-8L package
Thermally-Enhanced
E1
E
e
b
D
A2
0 ~ 8
A
A1
θ
L
C
Package Dimensions (Controlling dimensions are in millimeters)
Dimensions (mm)
Dimensions (Inches)
Symbol
Minimum
Maximum
Minimum
Maximum
A
0.800
1.200
0.031
0.047
A1
0.000
0.200
0.000
0.008
A2
0.750
0.970
0.030
0.038
b
0.280
0.380
0.011
0.015
C
0.130
0.230
0.005
0.009
D
2.900
3.100
0.114
0.122
E
4.700
5.100
0.185
0.201
e
Revision C
0.650 BSC
0.026 BSC
E1
2.900
3.100
0.114
0.122
L
0.400
0.700
0.016
0.028
θ
0
8
0
8
03/30/2012
6
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CS0807S1
CitrusCom
Ultra-Low Capacitance TVS Protection
Reflow Profile
Profile Feature
Pb-Free Assembly
Temperature min (Tsmin)
150C
Temperature max (Tsmax)
200C
Time (Tsmin to Tsmax) (ts)
60-120 seconds
Average ramp-up rate (Tsmax to Tp)
3C/second max.
Liquidous temperature (TL)
217C
Time at liquidous (tL)
60-120 seconds
Peak package body temperature (Tp)
260C
Time (tp) within 5C of the specified
30 seconds
Classification temperature (Tc)
Average ramp-down rate (Tp to Tsmax)
6C/second max.
Time from 25C to peak temperature
6 minutes max.
Tp
TL
Max. Ramp up rate: 3C/second
Max. Ramp down rate: 6C/second
tp
Tc = Tp - 5C
tL
Tsmax
Tsmin
ts
Figure 4 Reflow profile for CS0807S1
Revision C
03/30/2012
7
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CS0807S1
CitrusCom
Ultra-Low Capacitance TVS Protection
Tape and Reel Specification
P0
P2
ΦD: 1.55±0.05
T
Device Orientation in Tape
E
Top
Cover
Tape
A0
F
W
B0
5°Max
ΦD1: 1.50±0.05
K0
Pin1 Location
P
Symbol
W
A0
B0
K0
E
F
P
P0
P2
T
Dimensions
(mm)
12.00+0.3
-0.3
5.6±0.1
3.4±0.1
1.45±0.1
1.75±0.1
5.5±0.05
8.0±0.1
4.0±0.1
2.0±0.05
0.3±0.05
Marking Codes
Ordering Information
Part Number
Working
Voltage
Quantity
Per Reel
Reel Size
CS0807S1
5V
3,000
13 Inch
CS0807S1
YYWW
Note:
(1) “CS0807S1” is part number.
(2) “YYWW” is date code. “YY” is year (2012 is
“12”); while “WW” is week (the assembly week
in a year, from “01” to “52”).
Revision C
03/30/2012
8
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