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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

4

Dynamic Characteristics

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Automatic recovery from

overload shutdown

TOVLREC value, measured from port

shutdown

(can be modified through control port)

8

s

Automatic recovery from no-

load shutdown

TUDLREC value, measured from port

shutdown

(can be modified through control port)

1

s

Thermal Data____________________________________________

Microsemi's PD64001/H enables building very low power dissipating PoE devices. For a single port, the system

worst case power dissipation can be calculated as follows.

Application

Disconnection

Method

Iport_max

Current

Rsense

(1Ω)

Diode

MOSFET

PoE

Manager

Total

EEE802.3af

DC

350 mA

0.12 W

-

0.012 W (0.1Ω)

0.60 W

0.73 W

EEE802.3af

AC

350 mA

0.12 W

0.53 W 0.012 W (0.1Ω)

0.60 W

1.26 W

EEE802.3at

DC

600 mA

0.36 W

-

0.036 W (0.1Ω)

0.60 W

1 W

EEE802.3at

AC

600 mA

0.36 W

0.9 W

0.036 W (0.1Ω)

0.60 W

1.9 W

EEE802.3at

DC

720 mA

0.52 W

-

0.052 W (0.1Ω)

0.60 W

1.17 W

EEE802.3at

AC

720 mA

0.52 W

1.1 W

0.052 W (0.1Ω)

0.60 W

2.27 W