SLVU2.8-8A1 [STMICROELECTRONICS]
Low voltage unit for Gigabit Ethernet protection; 千兆以太网保护低电压单位
| 型号： | SLVU2.8-8A1 |
| 厂家： | 
ST |
| 描述： | Low voltage unit for Gigabit Ethernet protection |
| 文件： | 总8页 (文件大小：202K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SLVU2.8
Low voltage unit for Gigabit Ethernet protection
Features
■ Peak pulse current : I = 30 A 8/20 µs
PP
■ Low capacitance : C = 1.5 pF
typ
■ Stand-off voltage : V = 2.8 V
R
■ Low leakage current : I
= 0.2 µA
Rmax
SO-8 package
®
■ ECOPACK 2 compliant component
■ IEC 61000-4-5 (1kV 42 Ω 24 A) compliant at
T = 150 °C
j
Complies with the following standards
■ IEC 61000-4-2 level 4
– 15 kV (air discharge)
– 8 kV (contact discharge)
SLVU2.8-4A1
SLVU2.8-8A1
■ IEC 61000-4-4 level 4
–
2 kV - 40 A (5/50 ns)
■ IEC 61000-4-5 level 2
1 kV - 42 Ω
Description
–
The SLVU2.8 series has been designed to protect
Ethernet line. Its low capacitance makes it
compatible with Gigabit Ethernet.
■ IEEE 802.3ab and 802.3at compatible on both
receiver (4 Vmax ) and driver side ( 3.6 Vmax)
■ MIL STD 883G - Method 3015-7
SLVU2.8-4A1 is designed to be compatible with
Gigabiit Ethernet and Gigabit PoE by using two
SO-8 packages and can be used on
– 25 kV (human body model)
10/100 Mbps Ethernet by using a single device.
SLVU2.8-8A1 is designed to be compatible with
Gigabiit Ethernet and Gigabit PoE by using a
single SO-8 package.
Surge capability is compatible with IEC 61000-4-5
class 2 (1 kV, 42 Ω, 24 A).
Packaged in SO-8, the SLVU2.8 is a flow-through
design in order to minimize trace inductances.
Footprint is in accordance with IPC 7531
standard.
May 2011
Doc ID 16191 Rev 2
1/8
www.st.com
8
Characteristics
SLVU2.8
1
Characteristics
Table 1.
Symbol
Absolute ratings (T
= 25 °C)
amb
Parameter
Value
Unit
PPP
IPP
Tstg
Tj
Peak pulse power (8/20 µs)
600
30
W
A
Peak pulse current (8/20 µs)
Storage temperature range
-65 to + 150
-55 to + 150
260
°C
°C
°C
Maximum junction temperaturee
Maximum lead temperature for soldering during 10 s.
TL
Table 2.
Electrical characteristics values (T
= 25 °C)
amb
VCL @ PP
I
VCL @ PP
I
C
IRM @VRM
I/O to I/O
8/20 µs
8/20 µs
Order code
max.
85 °C
typ.
nA
max.
µA
max.
max.
typ.
pF
max.
pF
µA
V
V
A
V
A
SLVU2.8-4A1
SLVU2.8-8A1
2
2
0.2
0.2
1
1
2.8
2.8
15
15
24
24
12
12
12
12
1.5
3
2.5
5
Figure 1.
Pulse waveform
%IPP
Repetitive peak pulse current
tr = rise time (µs)
tp = pulse duration time (µs)
100
50
0
tr
tp
2/8
Doc ID 16191 Rev 2
SLVU2.8
Figure 2.
Characteristics
Relative peak pulse power versus Figure 3.
initial junction temperature
Junction capacitance versus
frequency (SLVU2.8-4A1)
PPP[Tj initial] / PPP[T j initial = 25 °C]
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
C(pF)
5
V
= 30 mV
SLVU2.8-4A1
Pin 1-2
Pin 3-4
Pin 5-6
Pin 7-8
osc
RMS
T = 25 °C
j
4
3
2
1
F(MHz)
0
10
100
1000
0
25
50
75
100
125
150
Figure 4.
Junction capacitance versus
frequency (SLVU2.8-8A1)
Figure 5.
Junction capacitance versus
reverse applied voltage
(typical values)
C(F)
C(pF)
5
5.0
F = 1 MHz
V
= 30 mV
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
osc
RMS
V
= 30 mVRMS
osc
T = 25 °C
T = 25 °C
j
4
3
2
1
j
SLVU2.8-8A1
Pin 1-2
Pin 3-4
Pin 5-6
Pin 7-8
SLVU2.8-8A1
SLVU2.8-4A1
F(MHz)
VR(V)
0
0.0
0
10
100
1000
1
2
3
Figure 6.
Leakage current versus junction
temperature (typical values)
Figure 7.
S21 attenuation (typical value)
dB
Ir(nA)
100
0
-2
-4
-6
-8
Vr = Vrm
10
Tj (°C)
150
F(Hz)
1
25
50
75
100
125
300k
1M
3M
10M 30M 100M 300M 1G
3G
Doc ID 16191 Rev 2
3/8
Characteristics
SLVU2.8
Figure 8.
Connection for 10/100 Mbps
Ethernet with SLVU2.8-4A1
Figure 9.
Connection for 1G Ethernet with
SLVU2.8-8A1
Pair #1
Pair #1
Pair #3
Pair #4
Pair #2
Pair #2
Figure 10. Schematic for 10/100 Mbps Ethernet
Secondary
Primary
Tranceiver
Protection
Protection
V
RJ45
4/8
Doc ID 16191 Rev 2
SLVU2.8
Ordering information scheme
Figure 11. Schematic for 1 Gbps Ethernet
Secondary
Protection
(optional)
V
Tranceiver
Primary
Protection
V
1. For further information, refer to application note : AN3007
2
Ordering information scheme
Figure 12. Ordering information scheme
SLVU
2.8
-
4
A
1
ST low voltage unit
Stand off voltage
Vrm = 2.8 V
Number of lines
Version
Packaging
1 = SO-8
Doc ID 16191 Rev 2
5/8
Package information
SLVU2.8
3
Package information
●
●
●
●
Case: JEDEC SO-8 molded plastic over planar junction
Terminals: Solder plated, solderable per MIL-STD-750, Method 2026
Flammability: Epoxy is rated UL94V-0
RoHS package
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.
Table 3.
SO-8 dimensions
Dimensions
Millimeters
Min. Typ. Max. Min. Typ. Max.
Ref.
Inches
Seating
Plane
C
h x 45°
A
1.75
0.069
0.010
A1
0.1
0.25 0.004
0.049
A2
A1
A
C
A2 1.25
L
e
k
b
b
C
D
E
0.28
0.17
0.48 0.011
0.23 0.007
0.019
0.009
ppp C
L1
D
4.80 4.90 5.00 0.189 0.193 0.197
5.80 6.00 6.20 0.228 0.236 0.244
8
1
5
E1 3.80 3.90 4.00 0.150 0.154 0.157
E1
E
e
h
1.27
0.050
0.25
0.40
0.50 0.010
1.27 0.016
0.020
0.050
4
L
L1
k
1.04
0.041
0°
8°
0°
8°
ppp
0.10
0.004
Figure 13. Foot print recommendations Figure 14. Marking
6.8
(0.268)
0.6
XXXXX : Marking
ZZ : Manufacturing location
Y : Year
(0.024)
x x x x x x
4.2
WW : week
(0.165)
z z y w w
â
1.27
(0.050)
Pin 1
6/8
Doc ID 16191 Rev 2
SLVU2.8
Ordering information
4
Ordering information
Table 4.
Order code
SLVU2.8-4A1
SLVU2.8-8A1
Ordering information
Marking
Package
Weight
Base qty
Delivery mode
SLVU284
SLVU288
SO-8
SO-8
78 mg
78 mg
2500
2500
Tape and reel
Tape and reel
5
Revision history
Table 5.
Date
Document revision history
Revision
Changes
01-Sep-2009
31-May-2011
1
2
Initial release.
Updated Ethernet standard compatibility on the cover page.
Doc ID 16191 Rev 2
7/8
SLVU2.8
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8/8
Doc ID 16191 Rev 2
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