PD64012中文資料ETC數(shù)據(jù)手冊PDF規(guī)格書

[PowerDsine]

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.

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)

? I2C 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