VEMI255A-HS3
Vishay Semiconductors
2-Channel EMI-Filter with ESD-Protection
FEATURES
• Ultra compact LLP75-6A package
6
5
4
• 2-channel EMI-filter and ESD-protection
• Low leakage current
• Line resistance RS = 50 Ω
1
2
• Typical cut off frequency f3dB = 100 MHz
3
• ESD-protection acc. IEC 61000-4-2
± 30 kV contact discharge
± 30 kV air discharge
19499
19957
1
• e3 - Sn
MARKING (example only)
XX
YY
• Compliant to RoHS directive 2002/95/EC
accordance to WEEE 2002/96/EC
and
in
21001
Dot = pin 1 marking
YY = type code (see table below)
XX = date code
ORDERING INFORMATION
TAPED UNITS PER REEL
(8 mm TAPE ON 7" REEL)
MINIMUM ORDER QUANTITY
DEVICE NAME
ORDERING CODE
VEMI255A-HS3
VEMI255A-HS3-GS08
3000
15 000
VEMI255A-HS3
VEMI255A-HS3-GS08
10 000
10 000
PACKAGE DATA
DEVICE NAME
PACKAGE
NAME
TYPE
CODE
WEIGHT
MOLDING COMPOUND
FLAMMABILITY RATING
MOISTURE
SENSITIVITY LEVEL
SOLDERING
CONDITIONS
VEMI255A-HS3
LLP75-6A
T1
5 mg
UL 94 V-0
MSL level 1
(according J-STD-020)
260 °C/10 s at terminals
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Peak pulse current
ESD immunity
Operating temperature
TEST CONDITIONS
SYMBOL
VALUE
UNIT
All I/O pin to pin 2; acc. IEC 61000-4-5;
tp = 8/20 µs; single shot
IPPM
4
A
Contact discharge acc. IEC61000-4-2; 10 pulses
Air discharge acc. IEC61000-4-2; 10 pulses
Junction temperature
Storage temperature
VESD
± 30
± 30
kV
TJ
- 40 to + 125
°C
TSTG
- 55 to + 150
°C
** Please see document “Vishay Material Category Policy”: www.vishay.com/doc?99902
Document Number: 84772
Rev. 1.7, 14-Sep-09
For technical questions, contact: EMIFilter@vishay.com
www.vishay.com
1
VEMI255A-HS3
2-Channel EMI-Filter with
ESD-Protection
Vishay Semiconductors
APPLICATION NOTE
With the VEMI255A-HS3 2 different signal or data lines can be filtered and clamped to ground. Due to the different clamping levels
in forward and reverse direction the clamping behavior is Bidirectional and Asymmetric (BiAs).
L1IN
1
6
2
5
3
4
L1OUT
L2IN
L2OUT
19500
19420
19421
The 2 independent EMI-filter are placed between
pin 1 and pin 6, and
pin 3 and pin 4.
They all are connected to the common ground pin 2. Pin 5 is internally not connected. Each filter is symmetrical so that all ports
(pin 1, 3, 4, and 6) can be used as input or output.
The circuit diagram of one EMI-filter-channel shows two identical Z-diodes at the input to ground and the output to ground. These
Z-diodes are characterized by the breakthrough voltage level (VBR) and the diode capacitance (CD). Below the breakthrough
voltage level the Z-diodes can be considered as capacitors. Together with these capacitors and the line resistance RS between
input and output the device works as a low pass filter. Low frequency signals (f < f3dB) pass the filter while high frequency signals
(f > f3dB) will be shorted to ground through the diode capacitances CD.
RS
In
(pin 1, 3)
Out
(pin 4, 6)
CD
21085
CD
GND
(pin 2)
Each filter is symmetrical so that both ports can be used as input or output.
www.vishay.com
2
For technical questions, contact: EMIFilter@vishay.com
Document Number: 84772
Rev. 1.7, 14-Sep-09
VEMI255A-HS3
2-Channel EMI-Filter with
ESD-Protection
Vishay Semiconductors
ELECTRICAL CHARACTERISTICS VEMI255A-HS3
PARAMETER
TEST CONDITIONS/REMARKS
SYMBOL
MIN.
TYP.
MAX.
UNIT
Number of channels which can be protected
Nchannel
-
-
2
channel
Reverse stand off voltage
at IR = 1 µA each input to pin 2
VRWM
5
-
-
V
Reverse current
at VR = 5 V each input to pin 2
IR
-
-
1
µA
Reverse break down voltage
Each input to pin 2 at IR = 1 mA
VBR
6
-
-
V
at IPP = 1 A applied at the input, measured
at the output; acc. IEC 61000-4-5
VC-out
-
-
7.8
V
at IPP = IPPM = 4 A applied at the input,
measured at the output; acc. IEC 61000-4-5
VC-out
-
-
8
V
at IPP = - 1 A applied at the input, measured
at the output; acc. IEC 61000-4-5
VC-out
-1
-
-
V
at IPP = IPPM = - 4 A applied at the input,
measured at the output; acc. IEC 61000-4-5
VC-out
- 1.2
-
-
V
at VR = 0 V; f = 1 MHz
CIN
-
60
-
pF
at VR = 2.5 V; f = 1 MHz
CIN
-
37
-
pF
at ± 30 kV ESD-pulse acc. IEC 61000-4-2
VCESD
-
7.5
-
V
Measured between input and output;
IS = 10 mA
RS
45
50
55
Ω
VIN = 0 V; measured in a 50 Ω system
f3dB
-
100
-
MHz
Protection paths
Pos. clamping voltage
Neg. clamping voltage
Input capacitance
ESD-clamping voltage
Line resistance
Cut-off frequency
Note
Ratings at 25 °C, ambient temperature unless otherwise specified.
TYPICAL CHARACTERISTICS
Tamb = 25 °C, unless otherwise specified
120 %
8 µs to 100 %
100 %
80 %
80 %
IPPM
Discharge Current IESD
Rise time = 0.7 ns to 1 ns
100 %
60 %
53 %
60 %
20 µs to 50 %
40 %
40 %
27 %
20 %
20 %
0%
- 10 0 10 20 30 40 50 60 70 80 90 100
20557
0
20548
Time (ns)
Fig. 1 - ESD Discharge Current Wave Form
acc. IEC 61000-4-2 (330 Ω/150 pF)
Document Number: 84772
Rev. 1.7, 14-Sep-09
0%
10
20
30
40
Time (µs)
Fig. 2 - 8/20 µs Peak Pulse Current Wave Form
acc. IEC 61000-4-5
For technical questions, contact: EMIFilter@vishay.com
www.vishay.com
3
VEMI255A-HS3
2-Channel EMI-Filter with
ESD-Protection
Vishay Semiconductors
70
100
f = 1 MHz
60
10
50
CIN (pF)
IF (mA)
1
0.1
40
30
20
0.01
10
0.001
0.5
0
0.6
0.7
0.8
0.9
1
21084
2
7
-5
Transmission (S21) (dB)
0
6
5
4
3
2
4
5
- 10
VINPUT = 5 V
- 15
VINPUT = 0 V
- 20
- 25
- 30
- 35
Filter output not connected
0
3
VIN (V)
Fig. 6 - Typical Input Capacitance CIN vs. Input Voltage VIN
8
1
1
19570
Fig. 3 - Typical Forward Current IF vs. Forward Voltage VF
VIN (V)
0
VF (V)
Measured in a 50 Ω system
- 40
0.01
0.1
1
10571
10
1
100 1000 10 000
IIN (µA)
19569
Fig. 4 - Typical Input Voltage VIN vs. Input Current IIN
10
100
1000
10 000
Frequency (MHz)
Fig. 7 - Typical Small Signal Transmission (S21)
at ZO = 50 Ω
12
VC at Input
10
VC (V)
8
VC at Output
6
4
Measured acc. IEC 61000-4-5
(8/20 µs - wave form).
Surge pulse applied at the filter input.
2
0
0
19572
1
2
3
4
5
6
IPP (A)
Fig. 5 - Typical Peak Clamping Voltage VC vs.
Peak Pulse Current IPP
www.vishay.com
4
For technical questions, contact: EMIFilter@vishay.com
Document Number: 84772
Rev. 1.7, 14-Sep-09
VEMI255A-HS3
2-Channel EMI-Filter with
ESD-Protection
Vishay Semiconductors
0.45 (0.018)
0.55 (0.022)
0.2 (0.008)
0.3 (0.012)
0.2 (0.008)
0.3 (0.012)
1 (0.039)
0.2 (0.008)
0.3 (0.012)
Heat sink
0.95 (0.037)
1.05 (0.041)
PACKAGE DIMENSIONS in millimeters (inches): LLP75-6A
0.5 (0.020)
0.6 (0.024)
0.7 (0.028)
0.8 (0.031)
0.05 (0.002)
0 (0.000)
0.2 (0.008)
0.25 (0.010)
1.65 (0.065)
1.55 (0.061)
1.55 (0.061)
1.65 (0.065)
Pin 1 marking
Foot print recommendation:
0.5 (0.020)
0.5 (0.020)
0.3 (0.012)
0.3 (0.012)
18058
Document Number: 84772
Rev. 1.7, 14-Sep-09
0.15 (0.006)
1 (0.039)
1 (0.039)
0.5 (0.020)
Document no.:S8-V-3906.02-001 (4)
Created - Date: 20. December 2004
Rev. b - Date: 12. January 2006
0.25 (0.010)
0.15 (0.006)
Solder resist mask
Solder pad
0.5 (0.020)
For technical questions, contact: EMIFilter@vishay.com
www.vishay.com
5
Legal Disclaimer Notice
www.vishay.com
Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively,
“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
purpose, non-infringement and merchantability.
Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of typical
requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements
about the suitability of products for a particular application. It is the customer’s responsibility to validate that a particular
product with the properties described in the product specification is suitable for use in a particular application. Parameters
provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All
operating parameters, including typical parameters, must be validated for each customer application by the customer’s
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,
including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk and agree
to fully indemnify and hold Vishay and its distributors harmless from and against any and all claims, liabilities, expenses and
damages arising or resulting in connection with such use or sale, including attorneys fees, even if such claim alleges that Vishay
or its distributor was negligent regarding the design or manufacture of the part. Please contact authorized Vishay personnel to
obtain written terms and conditions regarding products designed for such applications.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by
any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners.
Material Category Policy
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as RoHS-Compliant fulfill the
definitions and restrictions defined under Directive 2011/65/EU of The European Parliament and of the Council
of June 8, 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment
(EEE) - recast, unless otherwise specified as non-compliant.
Please note that some Vishay documentation may still make reference to RoHS Directive 2002/95/EC. We confirm that
all the products identified as being compliant to Directive 2002/95/EC conform to Directive 2011/65/EU.
Revision: 12-Mar-12
1
Document Number: 91000
