Power over ethernet power supply protection Peak pulse power: (8/

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Power over ethernet power supply protection Peak pulse power: (8/

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PEP01-5841
Power over ethernet power supply protection
Peak pulse power: (8/20 Stand-off voltage: unidirectional Transilsand decoupling capacitances clamping voltage: leakage current: Operating max: JEDEC registered package outline Figure
2-3-6-7
SO-8 package PEP01-5841
Functional diagram
Complies with following standards
IEC61000-4-2 level (air discharge) (contact discharge) IEC61000-4-5 level IEEE 802.3af-2003 IEEE 802.3at-2008
Description
PEP01-5841 been designed protect power over ethernet equipment against line overvoltages. embeds decoupling capacititors stabilize power supplies. compatible with IEEE 802.3af-2003 IEEE 802.3at-2008 requirements allows based systems protected against both electrical overstress (EOS) electrostatic discharges (ESD) according IEC61000-4-5 IEC61000-4-2. clamping voltage (100 makes compatible with PMOS controller technologies. Developed Planar technology, provides high reliability level. Packaged SO-8, this minimizes consumption (footprint accordance with 7531 standard).
Transil trademark STMicroelectronics
2009
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Characteristics
PEP01-5841
Characteristics
Table
Symbol Tstg
Absolute ratings (Tamb
Parameter Peak pulse voltage (IEC61000-4-2 contact discharge) Peak pulse power dissipation Storage temperature range Operating junction temperature range Maximum lead temperature soldering during initial Tamb Value 2700 Unit
Table
Symbol
Electrical characteristics definitions(Tamb
Parameter Stand-off voltage Breakdown voltage Clamping voltage Leakage current Peak pulse current Voltage temperature coefficient Capacitance Dynamic impedance max@VRM min. 64.4 67.8 71.2 typ. max. max. 8/20 @IPP RD(2) typ. T(3) max. 10-4 10.4
Slope
Type PEP01-5841
Pulse test: calculate maximum clamping voltage other surge level, following formula: VCLmax VBRmax calculate versus junction temperature, following formula: 25))
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PEP01-5841 Figure Pulse waveform
Characteristics
Repetitive peak pulse current rise time (µs) pulse duration time (µs)
Figure
Peak power dissipation versus initial junction temperature
Figure
Peak pulse power versus exponential pulse duration initial
initial
Ppp[Tj initial] initial 25°C]
100.0
(kW)
10.0
Tj(° (°C)
(ms)
1.0E-03 1.0E-02 1.0E-01 1.0E+00 1.0E+01
Figure
Clamping voltage versus peak pulse current (exponential waveform, maximum values)
initial 8/20
Figure
Capacitance versus voltage (typical values)
100.0
C(pF)
VOSC
10.0
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Characteristics
PEP01-5841
Figure
Peak forward voltage drop versus peak forward current (typical values)
Figure
Relative variation thermal impedance junction ambient versus pulse duration
1.0E+01
1.00
Zth(j-a) Rth(j-a)
With recommended layout
1.0E+00
1.0E-01
0.10
1.0E-02
(printed ciruit board FR4,
0.01 1.0E-03 1.0E-02 1.0E-01 1.0E+00 1.0E+01 1.0E+02
1.0E+03
Figure
Leakage current versus junction temperature (typical values)
1.E+04
IR(nA)
1.E+03
1.E+02
1.E+01
1.E+00
1.E-01
1.E-02
(°C)
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PEP01-5841
Application
Application
Figure Typical application circuit with PMOS integrated controller
Controller PEP01-5841
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Application Figure Typical application circuit with external PMOS
PEP01-5841
controller
Figure shows typical application schematics network. Power sourcing equipment (PSE) allows communication power sourcing several power devices (PD). number ways generally multiple this optimizes PEP01-5841 track layout crosstalk, well surface occupation. This protection device been studied comply with latest IEEE 802.3af-2003 requirements withstand surge defined 61000-4-5 level requirements.
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PEP01-5841
PEP01-5841
Ordering information scheme
Ordering information scheme
Figure Ordering information scheme
Power over ethernet protection Version Stand voltage
Number power supply lines protected Packaging SO-8
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Package information
PEP01-5841
Package information
Case: JEDEC SO-8 molded plastic over planar junction Terminals: solder plated, solderable according MIL-STD-750, Method 2026 Flammability: epoxy rated UL94V-0 RoHS package
order meet environmental requirements, offers these devices different grades ECOPACK® packages, depending their level environmental compliance. ECOPACK® specifications, grade definitions product status available www.st.com. ECOPACK® trademark. Table SO-8 dimensions
Dimensions Ref.
Seating Plane
Millimeters Min. Typ. 4.90 6.00 3.90 1.27 1.04 Max. 1.75 0.25 0.48 0.23 5.00 6.20 4.00 0.50 1.27 0.10 Min. 0.004 0.049 0.011 0.007
Inches Typ. Max. 0.069 0.010 0.019 0.009
1.25 0.28 0.17 4.80 5.80 3.80 0.25 0.40
0.189 0.193 0.197 0.228 0.236 0.244 0.150 0.154 0.157 0.010 0.016 0.050 0.041 0.020 0.050 0.004
Figure Footprint recommendations
(0.268) (0.024) (0.165) 1.27 (0.050)
Figure Marking
xxxx
XXXX: Marking Manufacturing location Year week
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Ordering information
Ordering information
Table Ordering information
Marking 58E1 Package SO-8 Weight Base 2000 Delivery mode Tape reel
Order code PEP01-5841
Revision history
Table
Date 06-May-2009 14-May-2009
Document revision history
Revision Initial release. Standards compliance updated. Changes
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Power over ethernet power supply protection Peak pulse power: (8/

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