Микросхемы и комплектующие STEVAL-POE001V1

Evaluation Board , PM8805 SiP, Power Over Ethernet (PoE) Interface, High Power, 4-Pair

Smart evaluation board for high power 4-pair PoE/PoE + PD systems. This evaluation board integrates a high power standard PD PoE interface, lets user try the features of the PM8805 IEEE802.3bt PoE-PD interface with integrated dual-active-bridge. The device is suitable for building the interface of PoE switch mode power supplies for maximum conversion efficiency. It provides a PGD signal that can be used to enable a PWM controller, a DC-DC converter or a LED driver. Identifies which kind of PSE (standard or legacy) it is connected with and provides successful IEEE802.3 af / at / bt classification indication through combination of the T0, T1 and T2 signals (open drain).

• System in package including a dual active bridge, a hot swap MOSFET and a PoE-PD interface
• PoE-PD single-signature interface compliant with IEEE 802.3bt Draft 3.7
• Detection and support of high power, 4-pair applications
• Programmable classification current with 3.3ms delay
• Advanced energy-saving MPS timings
• Two step hot swap current protection (DC with 1ms delay and overload with 10µs delay)
• PGD signal (open drain) to enable an external PWM controller
• Thermal shutdown protection