PEP01-5841 Datasheet, PDF (1/10 Pages) STMicroelectronics – Power over ethernet power supply protection

PEP01-5841
Power over ethernet power supply protection
Features
■ Peak pulse power: up to 2.7 kW (8/20 µs)
■ Stand-off voltage: 58 V
■ 4 unidirectional Transils™ and 4 decoupling
capacitances
■ Low clamping voltage: 100 V
■ Low leakage current:
– 0.2 µA at 25 °C
– 1 µA at 85 °C
■ Operating T_j max: 150 °C
■ JEDEC registered package outline
Complies with the following standards
■ IEC61000-4-2 level 4
– 15 kV (air discharge)
– 8 kV (contact discharge)
■ IEC61000-4-5 level 2
– +/- 1 kV 42 Ω
■ IEEE 802.3af-2003
■ IEEE 802.3at-2008
SO-8 package
PEP01-5841
Figure 1. Functional diagram
Gnd PS1
PS2
PS3
PS4
2-3-6-7 1
4
5
8
Description
The PEP01-5841 has been designed to protect
power over ethernet PSE equipment against line
overvoltages. It embeds 4 decoupling capacititors
to stabilize power supplies.
It is compatible with IEEE 802.3af-2003 and
IEEE 802.3at-2008 requirements and it allows
PoE based systems to be protected against both
electrical overstress (EOS) and electrostatic
discharges (ESD) according to IEC61000-4-5 and
IEC61000-4-2.
The low clamping voltage (100 V) makes it
compatible with PMOS and PSE controller
technologies. Developed in Planar technology, it
provides high reliability level.
Packaged in SO-8, this minimizes PCB
consumption (footprint in accordance with the
IPC 7531 standard).
TM: Transil is a trademark of STMicroelectronics
May 2009
Doc ID 15657 Rev 2
1/10
www.st.com
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