PD64004AH - 4-Port Power Sourcing Equipment
Manager for Power over Ethernet Systems
Description
Applicable Documents
Key Features
Microsemi’s™ PD64004AH is a 4-port,
mixed-signal, high-voltage Power over
Ethernet (PoE) Manager designed to
support IEEE 802.3af-2003 and 802.3at-
2009 PoE applications.
PoE Controller
IEEE 802.3af-2003 and
802.3at-2009 compliant
Up to 600 mA Iport_max
IETF Power Ethernet MIB
(RFC 3621) compliant
Single DC voltage input
(44v-57v)
Built in 3.3v regulator
Low thermal dissipation
(1 Ω sense resistor)
Internal power-on reset
Four ports
Internal power FET per port
Thermal monitoring and
protection
Supports any PD64004AH
and PD64012GH
PD63000/G datasheet,
Catalogue Number
06-0008-058
16 port evaluation
board PD-IM-7316AH
User Guide, Catalogue
Number 06-0025-056
Twelve-channel PoE
manager PD64012GH
datasheet, Catalogue
Number 06-0003-058
AN-152, Designing 8-
port PoE+ System
Using PD64004AH,
Catalogue Number
06-0034-080
AN-140, Layout Design
Guidelines for PoE
Systems, Catalogue
Number 06-0012-080
AN-161, Layout
Guidelines for PoE
Systems, Catalogue
Number 06-0066-080.
AN-170, Designing a
16-port Enhanced PoE
System, Catalogue
Number 06-0042-080
PD64004AH is used in Ethernet switches
(endspans) and midspans to enable next
generation network managers to share
power and data over the same cable. With
full digital control via a serial
communication interface and a minimum of
external components, the PD64004AH can
be placed in multi-port and highly
populated Ethernet switches. PD64004AH
integrates power, analog and logic
functions in a single 48-pin, QFN-PS
package allowing compact designs.
combination
Can be cascaded for up to
eight PoE managers
I2C or UART
communication to Host
User friendly unique PoE
communication protocol
Direct register
communication
Continuous monitoring of
individual ports
Continuous system
telemetries
Parameters setting per port
and per system
Disabling of ports through
hardware
Enhanced power
management algorithm
Advanced power
management; up to 32
ports
Pre-standard PD detection
Detection of Cisco devices
Port matrix
Interrupt out
Hardware system status pin
LED support
Emergency power
management with up to
eight power supplies
Rmode for H/W
The PD64004AH detects IEEE 802.3af-
2003 compliant Powered Devices (PDs)
and 802.3at-2009 PDs which exceed
IEEE802.3af power levels, ensuring safe
power feeding and port disconnection.
The PD64004AH executes all real time
functions as specified in the IEEE 802.3af-
2003 standard and the IEEE802.3at-2009
standard including detection, 1-event
classification and port status monitoring. It
also executes system level activities such
as power management, and MIB support
for system management. The PD64004AH
is designed to detect and disable
disconnected ports, using both DC and AC
disconnection methods, as defined in IEEE
802.3af-2003 and IEEE802.3at-2009.
The PD64004AH, in conjunction with the
PD63000G or in Automatic mode, can be
configured to support 2-pair 802.3at-2009
(up to 600 mA.) and 2-pair standard “af”
power (up to 350mA) for full IEEE802.3af
compliant functionality. Further, in AF
mode the PD64004AH and PD63000G can
support 8-ports operation (when working
together, the units are in Enhanced mode).
Performance of the PD64004AH can be
fully evaluated using the PD-IM-7316AH
evaluation board.
IMPORTANT: For the most current data, consult
MICROSEMI’s website: http://www.microsemi.com
configuration
RoHS compliant
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