LM5070SD-80

Power Over Ethernet (PoE) Controllers are devices that are used to allow power and data to be sent over an existing Cat 5 Ethernet cable. They are usually used to power devices such as IP cameras, VoIP phones, or wireless access points. The LM5070SD-80 is a PoE controller that provides an isolated, adaptive and scalable PoE solution.

The LM5070SD-80 features an integrated three-channel PoE controller that allows each channel to deliver 15.4W, up to 25.5W, of power over an Ethernet cable. The device is able to detect and classify powered devices (PDs) connected to the Ethernet cable in order to provide power in accordance with the IEEE 802.3af/at specification. It is capable of supplying power from 10/100/1000 Mb/s Ethernet data rates.

The device has an integrated non-intrusive sense resistor that enables precise detection of true PD power levels per port and precise classification of the PD into class 0, 1, 2 and 3 categories. An auto emphasis technique maximizes the power efficiency and reduces the risk of electrocution of network equipment.

The LM5070SD-80 supports redundant or single rail powering for applications requiring up to 25.5W of power delivery. The device also supports a two-wire local power reporting interface (LPRI) allowing connection to other control devices or system status displays.

The main applications for the LM5070SD-80 include powering of unmanaged and manageable PDs such as IP cameras, VoIP phones, and wireless access points. Other applications could include industrial PDs, medical devices, and lighting controllers.

In summary, the LM5070SD-80 is a PoE controller that provides an isolated, adaptive, and scalable PoE solution with up to 15.4W of power delivery per port. It supports redundant or single rail powering and a two-wire LPRI interface for connection to other control devices. The main applications for the device include powering of IP cameras, VoIP phones, and wireless access points, as well as other industrial PDs, medical devices, and lighting controllers.