PD69108F View Datasheet(PDF) - Microsemi Corporation

Part Name

Description

Manufacturer

PD69108F

8 PORTS PSE POE MANAGER

Microsemi Corporation 

®

TM

junction temperature exceeds 200° C. This mechanism

protects the device from extreme events, such as high

ambient temperature or other thermo-mechanical

failures that could damage the PD69108.

PD69108/F

8 PORTS PSE POE MANAGER

DATASHEET

VMAIN Out of Range Protection

The PD69108 automatically disconnects port power in

cases where Vmain exceeds 60 VDC. This valuable

mechanism protects the load in cases where main

power source is faulty or damaged.

TYPICAL APPLICATION

This typical application illustrates a simple Power Over Ethernet system Solution for an 8 Ethernet Ports Switch or

Hub.

“POS” and “NEG” Signals should be connected to the Switch RJ45 Jack

Vmain

Connected to DVDD or

DGND according to

desired address

MCU

MISO

To

MOSI

Opto

SCK

xCS

Isolated SPI

Communication

Bus

SPI Communication

Bus

VAUX5

DRV_VAUX5

VAUX3P3

VAUX3P3_INT

Addr0

Addr1

Addr2

Addr3

MISO

MOSI

SCK

xCS

Iref

Vport_Neg0

Vport_Sense0

x8

Vport_Neg7

Vport_Sense7

QGND

PG0

PG1

PG2

PG3

30.1K?

Figure 3: Typical Application

Vport_Pos0

47nF

Vport_Neg0

0.36? QGND

x8

Vport_Neg7

QGND

To

Power

Supply

* For detailed application's schematics and layout recommendations, contact: sales_AMSG@microsemi.com

Copyright © 2013

Microsemi

15

Rev. 1.6

Analog Mixed Signal Group

1 Enterprise, Aliso Viejo, CA 92656, USA; Within the USA: (800) 713-4113, Outside the USA: (949) 221-7100 Fax: (949) 756-0308

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