參數(shù)資料
型號： PD64012
廠商： Electronic Theatre Controls, Inc.
英文描述： 12-channel PoE Manager
中文描述： 12通道供電管理
文件頁數(shù)： 1/16頁
文件大?。?/td> 496K
代理商： PD64012
PD64012
12-channel PoE Manager
Preliminary Datasheet
Description __________________
PowerDsine’s PD64012 Power over Ethernet
(PoE) Manager chip integrates power, analog and
logic functions into a single 64-pin, plastic pack. It is
used in Ethernet switches and Midspans to allow next
generation network devices to share power and data
over the same cable.
The device is a twelve-port, mix-signal, high-voltage
Power over Ethernet driver. The PoE Manager allows
the detection of IEEE 802.3af-2003 compliant
terminals, referred to as powered devices or PDs,
ensuring safe power feeding and removal over
Ethernet ports. With full digital control via a serial
communication interface and a minimum of external
components, the device integrates in multi-port and
highly populated Ethernet switches.
The PD64012 implements all real time functions
according to IEEE 802.3af-2003, including: detection,
classification, and port status monitoring; as well as
system level activities such as: power management
and MIB support, for system management. The PoE
Manager is designed to detect and disable
disconnected ports, using both DC and AC
disconnect methods, as defined in IEEE 802.3af-
2003.
The
PD64012
has
configurations: an Auto mode (stand-alone topology)
for basic PoE functions and an Enhanced mode for
extended functions.
Pin Configuration _____________
two
possible
working
1
2
3
4
5
6
7
8
9
11
12
13
14
15
16
10
3
3
3
2
2
2
2
2
2
2
2
2
2
1
1
1
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
6
6
6
6
6
5
5
5
5
5
5
5
5
5
5
4
PD64012
VPERI
EXT_REG
VCC2p5
ASICINI
IREF
RESET_N
I2CINI
ADC2p5
QGND
SDA
SCL
SCK
MOSI
MISO
CS0_N
R
T
R
Features ____________________
IEEE 802.3af-2003 compliant
Drives 12 independent power ports
Can be cascaded for up to 48 ports, using a
master/slave architecture
Supports IETF Power Ethernet MIB (RFC 3621)
Thermal protection per port
Thermal monitoring capabilities
Multi-point resistor detection
Supports DC modulation method under-current
detection according to IEEE 802.3af-2003
AC & DC disconnect functions
PD classification function
Operates from single input (44 to 57 V)
I
2
C bus interface
Supports foldback current limiting
Digitally programmable overcurrent protection
per port
Digitally programmable timers
Power management algorithm for up to 48 ports
Internal power-on reset
Power soft-start algorithm
Fast power shutdown, in case of power
supply failure
Automatic on/off sequencer for up to 48 ports
Disable/enable power feeding
Continuous port current monitoring
Supports back-off feature for Midspan
implementation
Additional features for Enhanced mode:
UART interface
Pre-standard PD detection
Supports non-standard terminals
Advanced power management
Programmable port matrix
Ordering Information
PART
TEMP. RANGE
PD64012
-20 to +85
°
C
Date code
: see the bottom line (
04202AL1W07
) in
the Pin Configuration drawing. “
0420
” is the date
code. “
04
” the year (2004), while “
20
” is the week.
V
P
V
P
V
P
V
P
V
P
P
V
A
S
V
P
V
P
V
P
V
P
V
P
P
V
D
C
A
VPORT_POS7
VPORT_POS1
VPORT_POS2
VPORT_POS3
VPORT_POS4
VPORT_POS5
VPORT_POS6
VPORT_POS9
VPORT_POS10
VPORT_POS11
VMAIN
CP_IN
VPORT_POS8
CP_OUT
REF_PORT_NEG
VPORT_POS0
DGND
04202AL1W07
PIN PACKAGE
LQFP-64
PowerDsine
This document contains information that is proprietary to PowerDsine. As such, it is confidential and its disclosure is strictly prohibited by applicable law. If you and/or your company and PowerDsine
have executed a Non-Disclosure Agreement, then this document is being provided in connection with the Agreement, and the information contained herein is covered by the Agreement and under its
terms may not be disclosed or used and must be protected by you and/or your company.
The Power over Ethernet Pioneers
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