STMICROELECTRONICS ECMF02

ECMF02-4CMX8
Common mode filter with ESD protection for USB 2.0 Interface
Datasheet  production data
Features
■
Integrated common mode filter
■
Differential pair ESD protection
■
16 V VBUS ESD and EOS protection
■
ID pin ESD protection
■
Low profile µQFN-8L package
■
High bandwidth: >6 GHz
■
Optimized for high speed USB 2.0
■
High common mode attenuation at 900 MHz
and 1.8 GHz
■
Support of audio over USB 2.0 thanks to
bidirectional ESD protection
■
Ultra compact, low board space
■
Low height: < 0.55 mm
µQFN-8L
(pin view)
Figure 1.
Pin configuration (top view)
VBUS
GND
D-
D-
D+
D+
ID
GND
Complies with the following standards:
■
IEC 61000-4-2 level 4:
– 15 kV (air discharge)
– 8 kV (contact discharge)
■
RoHS2 compliant
Applications
Where transient over-voltage protection in ESD
sensitive equipment is required, such as:
Description
■
Computers
■
Printers
■
Communication systems
■
Cellular phone handsets and accessories
■
Video equipment
September 2012
This is information on a product in full production.
ECMF02-4CMX8 affords key component
integration such as common mode filter D+ and
D- lines and ESD protection on all lines. This
device offers an optimized flow-through footprint
for USB 2.0 applications.
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16
Characteristics
ECMF02-4CMX8
1
Characteristics
Table 1.
Absolute maximum ratings (Tamb = 25 °C)
Symbol
Parameter
Value
ESD discharge IEC 61000-4-2, level 4
Contact discharge on D+/D- pins
Contact discharge on VBUS and ID pins
Air discharge on all pins
Unit
10
20
30
VPP
Peak pulse voltage(1)
PPP
Peak pulse power (8/20µs) on VBUS
150
W
IPP
Peak pulse current (8/20µs) on VBUS
4.8
A
Top
Operating temperature
-30 to +85
°C
125
°C
- 55 to +150
°C
Tj
Tstg
Maximum junction temperature
Storage temperature range
kV
1. Measurements done on IEC 61000-4-2 test bench. For further details see Application note AN3353.
Figure 2.
Electrical characteristics - definitions
I
Symbol
VBR
IRM
VRM
VCL
IPP
IR
=
=
=
=
=
=
Parameter
Breakdown voltage
Leakage current @ VRM
Stand-off voltage
Clamping voltage
Peak pulse current
Breakdown current
IPP
VCL VBR
VRM
IR
IRM
IRM
IR
IPP
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V
VRM VBR VCL
ECMF02-4CMX8
Table 2.
Characteristics
Electrical characteristics (values, Tamb = 25 °C)
Symbol
Test conditions
Min.
Typ.
Max.
Unit
Data Lines
VBR
IR = 1 mA
IRM
VRM = 5.5 V per line
RDC
DC serial resistance on data line
6
V
100
nA
3
4

16.5
18
V
VBUS
VBR
IR = 1 mA
15
IRM
VRM = 12 V
50
nA
VCL
Clamping voltage. IPP = 1 A, tp = 8/20 µs
20
V
VCL
Clamping voltage. IPP = 2.5 A, tp = 8/20 µs
24
V
ID
VBR
IR = 1 mA
IRM
VRM = 1.5 V per line
Figure 3.
6
V
100
nA
SDD21 differential attenuation measurement (Z0 diff = 90 ) for data lines D+ and DSDD21 (dB)
0
-0.5
-1
-1.5
-2
-2.5
F (Hz)
-3
100k
1M
10M
100M
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1G
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Characteristics
Figure 4.
ECMF02-4CMX8
SCC21 common mode attenuation measurement (Z0 com = 45 )
SCC21 (dB)
0
-5
-10
-15
-20
-25
-30
-35
F (Hz)
-40
100k
Figure 5.
1M
10M
100M
1G
ID frequency response measurement (Z0 = 75 )
0
S21 (dB)
-5
-10
-15
-20
-25
F (Hz)
-30
100k
4/16
1M
10M
100M
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1G
ECMF02-4CMX8
Figure 6.
Characteristics
ESD test conditions
VBUS
GND
Attenuators
D-
D-
- 20 dB
Figure 7.
D+
D+
ID
GND
- 20 dB
Oscilloscope 50 Ω
ESD response to IEC 61000-4-2 (+8 kV contact discharge) on VBUS
1 VPP: ESD peak voltage
2 VCL :clamping voltage @ 30 ns
3 VCL :clamping voltage @ 60 ns
4 VCL :clamping voltage @ 100 ns
1 85.6 V
2 46.3 V
3 30.7 V
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4 23.5 V
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Characteristics
Figure 8.
ECMF02-4CMX8
ESD response to IEC 61000-4-2 (-8 kV contact discharge) on VBUS
4 -22.0 V
3 -30.4 V
2 -46.0 V
1 -83.5 V
Figure 9.
1 VPP: ESD peak voltage
2 VCL :clamping voltage @ 30 ns
3 VCL :clamping voltage @ 60 ns
4 VCL :clamping voltage @ 100 ns
ESD response to IEC 61000-4-2 (+8 kV contact discharge) on ID
1 VPP: ESD peak voltage
2 VCL :clamping voltage @ 30 ns
3 VCL :clamping voltage @ 60 ns
4 VCL :clamping voltage @ 100 ns
1 47.2 V
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2 19.0 V
3 17.6 V
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4 15.5 V
ECMF02-4CMX8
Characteristics
Figure 10. ESD response to IEC 61000-4-2 (-8 kV contact discharge) on ID
4 -21.2 V
3 -25.2 V
1 -56.0 V
2 -25.1 V
1 VPP: ESD peak voltage
2 VCL :clamping voltage @ 30 ns
3 VCL :clamping voltage @ 60 ns
4 VCL :clamping voltage @ 100 ns
Figure 11. ESD response to IEC 61000-4-2 (+8 kV contact discharge) on differential lane
1 VPP: ESD peak voltage
2 VCL :clamping voltage @ 30 ns
3 VCL :clamping voltage @ 60 ns
4 VCL :clamping voltage @ 100 ns
1 54.7 V
2 33.1 V
3 20.6 V
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4 13.2 V
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Characteristics
ECMF02-4CMX8
Figure 12. ESD response to IEC 61000-4-2 (-8 kV contact discharge) on differential lane
4 -11.4 V
3 -17.0 V
1 -49.5 V
2 -27.3 V
1 VPP: ESD peak voltage
2 VCL :clamping voltage @ 30 ns
3 VCL :clamping voltage @ 60 ns
4 VCL :clamping voltage @ 100 ns
Figure 13. Eye diagram (loaded by Zdiff = 90 ) Figure 14. Eye diagram (loaded by Zdiff = 90 )
with USB2.0 [mask 1] board only
with USB2.0 [mask 1] board with
ECM02-4CMX8
Rise time (ps) Fall time (ps) Eye height (mv) Eye width (ns)
347
347
721
2.04
8/16
Rise time (ps) Fall time (ps) Eye height (mv) Eye width (ns)
432
432
674
2.03
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ECMF02-4CMX8
Characteristics
Figure 15. TDR measurement (loaded by Zdiff = 90 ), rise time 400 ps
100
Zdiff (Ω)
98
96
94
92
90
t (ns)
88
0
1
2
3
4
Figure 16. HS sync
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Characteristics
ECMF02-4CMX8
Figure 17. Total harmonic distortion on differential lanes
Figure 18. Crosstalk on differential lanes
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ECMF02-4CMX8
Application schematic
Figure 19. Application schematic
ECMF02-4CMX8
VBUS
GND
D-
D-
D+
D+
ID
GND
Towards USB transceiver
2
Application schematic
Micro - USB
receptacle
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Ordering information scheme
3
ECMF02-4CMX8
Ordering information scheme
Figure 20. Ordering information scheme
ECMF 02 - 4 - C
Function
ESD common mode filter
Number of lines
02 = 2 lines
Number of ESD protected lines
4 = 4 ESD protected lines
Version
C = 16 V VBR for VBUS
Package
MX8 = µQFN-8L
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MX8
ECMF02-4CMX8
Package information
●
Epoxy meets UL94, V0
●
Lead-free packages
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
Figure 21. µQFN-8L dimension definitions
D
A1
A
E
e
0.40
b
PIN #1
Table 3.
L
0.20
4
Package information
µQFN-8L dimension values
Dimensions
Ref.
Millimeters
Inches
Min.
Typ.
Max.
Min.
Typ.
Max.
A
0.45
0.50
0.55
0.018
0.020
0.022
A1
0.00
0.02
0.05
0.00
0.0008
0.002
b
0.15
0.20
0.25
0.006
0.008
0.010
D
2.45
2.50
2.55
0.096
0.098
0.100
E
1.15
1.20
1.25
0.045
0.047
0.049
e
0.45
0.50
0.55
0.018
0.020
0.022
L
0.30
0.40
0.50
0.012
0.016
0.020
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Package information
ECMF02-4CMX8
Figure 22. Footprint
Figure 23. Marking
XX
WW
0.20
0.40
0.40
1.60
0.60
0.20
YP
Dot: Pin 1
XX: Marking
WW: Assembly week
Y: Assembly year
P: Assembly plant
0.50
2.10
Figure 24. Tape and reel specifications
Dot identifying Pin A1 location
2.0
Ø 1.55
4.0
8.0
2.80
3.50
1.75
0.30
Ø 0.80
1.45
4.0
0.70
All dimensions are typical values in mm
Note:
14/16
User direction of unreeling
More packing information is available in the application notes: AN1751: “EMI Filters:
Recommendations and measurements”
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ECMF02-4CMX8
5
Ordering information
Ordering information
Table 4.
Ordering information
Order code
Marking
Package
Weight
Base qty
Delivery mode
ECMF02-4CMX8
KG
µQFN-8L
3,7 mg
3000
Tape and reel
For the latest information on available order codes see the product pages on: www.st.com.
6
Revision history
Table 5.
Document revision history
Date
Revision
19-Sep-2012
1
Changes
Initial release.
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ECMF02-4CMX8
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