PD64004AH - 4-Port Power Sourcing Equipment

Manager for Power over Ethernet Systems

Application Information

The PD64004AH can be integrated into a number of

applications such as Ethernet switches, routers,

Midspans, and more. Examples of such applications

are described below:

•

Integrated directly into a switch:

Facilitates entire PoE concept, by

including the IC(s) on the main

switch’s PCB.

•

Daughter board add-on: Which the

IC is integrated into a small PoE

dedicated PCB, mounted on top of

the switch’s main PCB.

•

Midspans: Stand alone devices,

installed between the Ethernet switch

and PDs (Powered Devices) such as

telephone, camera, wireless LAN,

etc.).

These Midspans include the

PD64004AH IC as a PoE control

element, designed to inject power

over the communication lines.

Figure 4 through Figure 6 provide detailed schematic

Figure 4: Single-port Application with AC Disconnect Support

Copyright © 2009

Microsemi

13

Rev. 1.0, 14-Jan-10

Analog Mixed Signal Group

2381 Morse Avenue, Irvine, CA 92614, USA; Within the USA: (800) 713-4113, Outside the USA: (949) 221-7100 Fax: (949) 756-0308