DC-DC Controllers for Power over Ethernet

• 3.0 kV cable ESD robustness
• 8.0-15 kV system ESD robustness
• IEC61000-4-5 surge compliant without external protection

IEEE 802.3at, 40 W - Controller, Interface and Power Device

IEEE 802.3at + Auxiliary, 40 W - Controller, Interface and Power Device

IEEE 802.3at (Non-Isolated), up to 40 W - Controller Device

IEEE 802.3af, 3 W - Controller Device

Discrete Interface

IEEE 802.3at, 40 W Delivers 25.5 W for PoE+ IEEE 802.3at (Draft 4.0) and up to 40 W in proprietary applications Supports IEEE two event classification Integrated multi-topology dc-dc converter controller implements highly efficient power conversion at low output voltages Best in-class cable ESD and thermal characteristics IEEE 802.3at + Auxiliary, 40 W Auxiliary input voltage range from 9.0 V to 57 V Integrated multi-topology dc-dc converter controller implements highly efficient power conversion at low output voltages in conjunction with auxiliary voltage input Delivers 25.5 W for PoE+ IEEE 802.3at (Draft 4.0) and up to 40 W in proprietary applications Supports IEEE two event classification Best-in-class cable ESD and thermal characteristics IEEE 802.3at (Non-Isolated), up to 40 W Non-isolated application for simple cost effective solution Programmable overcurrent protection Flexibility to scale output MOSFETs for power requirements IEEE 802.3af, 3 W Integrated PWM controller and Power Device for up to 7.5 W requirements Up to 1 MHz switching frequency for high power density design Can be configured in any single-ended topology such as forward or flyback Discrete Interface Low cost discrete solution to signature and detection for PoE