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Copyright © 2009

Microsemi

Rev. 1.3 2009-02-23

Analog Mixed Signal Group

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

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Feature

Description

PD64001/H features

IEEE 802.3af-2003

Compliant

The PD64001/H meets all IEEE-802.3af-2003 standard requirements including:

Multi – point resistor detection

PD classification function

AC disconnect and DC disconnect function

Supports Back-off feature for Midspan implementation

IEEE802.3at-draft4.2

Compliant

Including support for high power and 2-events classification.

Single DC voltage Input

The PD64001/H requires a single DC voltage source: 44V to 57V. No additional

voltage sources (e.g. 3.3V/5V) are required for the PoE system’s operation.

Wide temperature range:

-40°c to +85°c

The PD64001/H can operate over a wide temperature range: -40° C to +85° C.

This temperature range enables the integration of the PD64001/H into small

unventilated boxes and operates in harsh environments.

Low thermal dissipation

(1Ω sense resistor)

The PD64001/H has a very low thermal dissipation. The Rsense in the PD64001/H

applications is only 1Ω to keep the peripheral components in low temperatures as

well.

External Power FET

External Mosfet is utilized to increase the flexibility of the solution, enabling it to be

tailored to the customer power requirements.

H/W Disable Port

The PD64001/H utilizes a dedicated pin, allowing an immediate disconnection of the

PoE port. This disable-port pin input can be controlled via the Host CPU.

Pre-Standard PD

Detection

Enables the detection and powering of pre-standard power devices (PDs).

Detection of Cisco

Devices

Enables the detection and powering of all Cisco devices including pre-standard

terminals.

LED Support

Direct driving of the LED circuitry. This enables the designer to implement a simple

LED circuit, indicating whether an IEEE802.3af or IEEE802.3at device is connected.