PD69012 Datasheet, PDF (1/18 Pages) Microsemi Corporation – 12 Ports Power Over Ethernet Manager

PD69012 - 12 Ports Power Over Ethernet Manager
Description _________________
Microsemi’s PD69012 Power over Ethernet (PoE)
Manager chip integrates power, analog and state of
the art embedded core logic into a single 80-pin,
plastic QFP package. The device is used in Ethernet
switches and Midspans to enable network devices to
share power and data over the same cable.
PD69012 device is a 12-port, mixed-signal, high-
voltage Power over Ethernet driver. It enables
detection of IEEE802.3af-2003 compliant PDs
(Powered Devices) and IEEE802.3AT High Power
Devices, thus, ensuring safe power feeding and
disconnection of ports. With full digital control via a
serial communication interface and a minimum of
external components, the device integrates into multi-
port and highly populated Ethernet switches and
routers.
The PD69012 executes all real time functions as
specified in the IEEE802.3af-2003 (“AF”) standard
and IEEE802.3at High Power (“AT”) functionality,
including load detection, “AF” and “AT” classification
and port status monitoring. In addition it performs
system level activities such as: power management
and MIB support for system management. The PoE
device is designed to detect and disable
disconnected ports utilizing both DC and AC
disconnection methods, as specified in the
IEEE 802.3af-2003 standard.
The PD69012 is designed to support 2 main
configurations:
• Auto mode: For Basic ”AF” and “AT” PSE
equipment
• Enhanced mode: For High End, Extended
features set of AF and AT PSE equipment
Pin Configuration _____________
Vport_pos0
1
Vport_pos1
2
Vport_pos2
3
Vport_pos3
4
Vport_pos4
5
Vport_pos5
6
Vport_pos6
7
Vport_pos7
8
Vport_pos8
9
Vport_pos9
10
Vport_pos10
11
Vport_pos11
12
CP_OUT
13
CP_IN
14
Vmain
15
Ref_port_neg
16
Dgnd2
17
PowerGood0/GPIO0
18
PowerGood1/GPIO1
19
PowerGood2/GPIO4
20
LSC
LSD
CS_EEPROM_n/ LSL /
Interrupt_n
Ext_reg
ADC2p5
QGND
I2CINI
Vcc2p5
ASIC_INI
Iref
Reset_n
SDA
PD69012 SDA_out
SCL
SCK
Date Code
Disable_ports_n
60
LSC/ GPIO3
59
LSD/ GPIO2
58
CS_EEPROM_n/ LSL /
Interrupt_n
57
Vperi
56
Ext_reg
55
ADC2p5
54
Qgnd
53
I2CINI
52
Vcc2p5
51
ASIC_INI
50
Iref
49
Reset_n
48
SDA
47
SDA_out / Test_mode
46
SCL
45
SCK
44
MOSI
43
MISO
42
CS_n
41
Disable_ports_n
Supported Features __________
PD69012 Auto Mode Features:
♦ Fully IEEE802.3af-2003 compliant
♦ Designed to support IEEE802.3at including two-event
classification
♦ Supports Pre-standard PD detection
♦ Supports Cisco devices detection
♦ IETF Power Ethernet MIB (RFC 3621) compliant
♦ Single DC voltage input (44v-57v)
♦ Wide temperature range: -40° C to +85° C
♦ Low thermal dissipation (0.5Ω sense resistor)
♦ Drives 12 independent 2-pairs power ports or 6
independent 4-pairs ports
♦ Can cascade up to 8 PoE devices (96 ports)
♦ EEPROM interface for software patching and
parameter configuration
♦ I²C Host interface
♦ Supports Interrupt out pin
♦ Dynamic Power management
♦ Emergency power management supporting 3
Configurable Power Bank I/Os
♦ Direct register communication
♦ Direct LED drive
♦ Continuous monitoring per port and system data
♦ Parameter setting per port and per system
♦ Power soft start algorithm
♦ Thermal monitoring/protection
♦ Voltage monitoring/protection
♦ H/W disable ports input
♦ Built in 3.3 V regulator
♦ Internal power on reset
♦ Enhanced SPI bus for internal communication
♦ External EEPROM for system parameters update
♦ SW ROM patch option
♦ RoHS compliant
Enhanced Modes Additional Features:
♦ I²C or UART host interface
♦ Serial Communication Protocol backwards compatible
with PD63000 and PDIC66000
♦ Additional monitoring
♦ Extended parameter setting
♦ Port matrix for flexible PCB layout
♦ Field upgradeable software
♦ Emergency Power Management with 4 power
supplies
Ordering Information __________
Part number Temperature range Package
PART
TEMP. RANGE
PIN PACKAGE
PD69012
-40 to +85 °C
LQFP 80 pin
This datasheet refers to ICs with date code "XAA0843" or later.
Date code: See the bottom line (XAA0843) in the Pin Configuration
drawing. Where “0843" is the date code, “08” is the year (2008),
and “43” is the week.
Copyright © 2009
Rev. 1.0, 2009-03-03
Microsemi
Analog Mixed Signal Group
2381 Morse Avenue, Irvine, CA 92614, USA; Phone (USA): [phone], (ROW): [phone] Fax: [phone]
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