SI3454集成电路（IC）的以太网供电（PoE）控制器规格书PDF中文资料

SI3454属于集成电路（IC）的以太网供电（PoE）控制器。由美国思佳讯公司制造生产的SI3454以太网供电（PoE）控制器以太网供电 (PoE) 控制器允许设计人员通过单个以太网连接传输电流和数据。远程设备通过以太网电缆供电，因此无需电池、本地电源适配器和其他电源电缆。桥式整流器和 N+1 O-Ring 是两种 PoE 控制器类型。可用特性可能包括 N 和 P 沟道 FET、内部开关和汽车认证。

特性 Features

 Quad-Port Power Sourcing

Equipment (PSE) controller

 IEEE 802.3at Type I and II

compliant

 Port priority shutdown control

 Adds enhanced features for

maximum design flexibility:

Per-port current and voltage

monitoring

PoE Plus support with

programmable current limits

Multi-point detection

Programmable power MOSFET

gate drive control

Configurable watchdog timer

enables failsafe operation

 Maskable interrupt pin

 Comprehensive fault protection

circuitry includes:

Power undervoltage lockout

Output current limit and shortcircuit

protection

Thermal overload detection

 Supports pin-selectable

AUTO mode

 Extended operating temp range:

–40 to +85 °C

 5x7 mm 38-pin QFN package

(RoHS-compliant)

 On-chip dc-dc converter enables

single-rail power operation