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PD-IM-7301

P1-P3P4-P6P7-P9P10-P12P13-P14
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Introduction _______________
The PD64001/H is a single-port Power over Ethernet
PSE (Power Source Equipment) Manager. The PSE
Manager allows for the detection of IEEE 802.3af-
2003 and IEEE802.3at-draft4.2 powered devices,
ensuring safe power feeding and monitoring of
Ethernet ports. With a minimum of external
components, the PD64001/H integrates in a one-port
or two-port PoE-port switches and Midspans.
The PD64001/H has several operating modes,
allowing it to be tailored to the customer's application,
be it a switch or a Midspan, IEEE802.af or
IEEE802.3at-draft4.2-compliant, with 1-event or
2-events classification, AC or DC disconnect and
strict resistor detection or legacy detection
capabilities. It operates in a total stand-alone mode,
with no need for user intervention.
The PD64001/H supports 2-events classification and
operates at Iport_max currents of up to 600 mA /
720 mA (in coordination with PD64001 / PD64001H)
per port, making it fully compliant with the
IEEE802.3at-draft4.2
This datasheet includes a complete application note
and provides detailed information and circuitry design
guidelines for the implementation of a 1-port Power
over Ethernet (PoE) system, based on Microsemi’s™
1-channel PoE device, the PD64001/H.
This document allows the designer to integrate PoE
capabilities, as specified in the IEEE802.3af standard
into an Ethernet switch, Midspan or a router.
Applicable Documents_____
IEEE802.3af-2003
IEEE802.3at-draft4.2
Pin Configuration______
Features___________________
IEEE 802.3af-2003-compliant
IEEE802.3at-draft4.2 compliant
PD64001 supports Iport_max of 600 mA
PD64001H supports Iport_max of 720 mA
Programmable solution, can be updated as
the IEEE802.3at standard evolves
Accurate power measuring and extremely
low power dissipation
BOM and software tailored for specific
application saving total solution cost
Minimal power supply stress and EMI noises
Legacy (pre-standard) PD’s detection
1-port standalone PoE control
1-event and 2-event classification supported
External FET and sense resistor
AC and DC disconnect
Detection of the disconnection method by
assembled resistor
Port On/Off Host interface
Application uses a single operating voltage
source
Direct LED driving including IEEE802.3at
indication
SOIC-20 package
RoHS compliant
-40
o
to +85
o
C operating ambient temperature
Ordering Information______
PART Ilim TEMP.
RANGE
PIN
PACKAGE
PD64001
600
mA
-40° to
+85° C
SOIC-20
PD64001H
720
mA
-40° to
+85° C
SOIC-20
Evaluation board ordering number: PD-IM-7301
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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
2
Main Features Description___________________________________
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.
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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
3
Maximum
Ratings___________
V
main
………………………………………
-0.3 to 60 V
xRESETN input voltage…………………. -0.5 to 5 V
Application circuitry DC current ………………25 mA
ESD (Human Body Model)….……..… -2V to 2kV
(1)
Lead temperature (soldering, 10 s)…………. 300° C
Notes:.
(1) ESD testing is performed in accordance with the Human Body
Model (CZap = 100 pF, RZap = 1500 Ω).
Stresses beyond those listed above may cause permanent
damage to the device. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability
.
Operating Conditions______________________________________
PARAMETER MIN. NOM. MAX. UNIT
Operating temperature -40 +85
°C
Storage temperature -65 +150
°C
Operational limitations (1) 44 50 57 V
(1) To get higher power drive at the PSE output ports, it is recommended to use an operating voltage source greater then 50 V.
Electrical Characteristics___________________________________
DC Characteristics for Digital Inputs and Outputs
PARAMETER SYMBOL MIN. MAX. UNIT REMARKS
Pin Name xRESET
Type Schmitt Trigger CMOS input with internal pull-up
High level input voltage VIH 0.9 VCC VCC+0.5V V Vcc = 5V
Low level input voltage VIL -0.5V 0.2 VCC V Vcc = 5V
Input high current IIH +1 μA
Input low current IIL +1 μA
Reset assertion time Trst 2.5 μS
Internal Pull-up value Rpu 30 60 kΩ
P1-P3P4-P6P7-P9P10-P12P13-P14

PD-IM-7301

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Manufacturer:
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Description:
Ethernet Development Tools PoE EVB
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