PM8800ATR

更新时间： 2024-01-04 09:35:22

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		网络接口电信集成电路电信电路光电二极管控制器
页数	文件大小	规格书
35页	557K
描述
Integrated IEEE 802.3af compliant PoE-PD interface and PWM controller with support of external source

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中文翻译

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技术参数
数据手册
替代型号

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PM8800ATR 技术参数

生命周期：	Transferred	Reach Compliance Code：	unknown
风险等级：	5.61	Base Number Matches：	1

PM8800ATR 数据手册

PM8800A

Integrated IEEE 802.3af compliant PoE-PD interface

and PWM controller with support of external source

Features

■ IEEE 802.3af compliant PD interface

■ Works with power supplied from Ethernet LAN

cables or from local auxiliary sources

■ Integrated 100 V, 0.5 Ω, 800 mA hot-swap

HTSSOP16

MOSFET

■ Integrated signature resistor

Description

■ Programmable in-rush current limit

■ Programmable classification current

■ Programmable DC current limit up to 800 mA

■ High voltage start-up bias regulator

■ Thermal shutdown protection

The PM8800A integrates a standard power over

Ethernet (PoE) interface and a current mode

PWM controller to simplify the design of the

power supply sections of all powered devices.

The PoE interface incorporates all the functions

required by the IEEE 802.3af including detection,

classification, under-voltage lockout (UVLO) and

in-rush current limitation.

■ Current mode pulse width modulator

■ Programmable oscillator frequency

■ Programmable soft-start

PM8800A specifically targets PD with extended

power requirement with respect to the limit

imposed by the 802.3af standard, embedding a

hot-swap MOSFET capable of sustaining twice

the current of the 802.3af standard with a

programmable DC current limit.

■ Power good indication

■ 80 % maximum duty cycle with internal slope

compensation

■ Supports both isolated and non-isolated

Applications.

The integrated switching regulator has been

designed to work with power either form the

Ethernet cable connection or from an external

power source such as AC adapter.

■ HTSSOP16 package

Applications

■ VoIP phones, WLAN access points

■ Security cameras

The DC-DC section of the PM8800A features a

programmable oscillator frequency, soft-start,

slope compensation and embeds a voltage output

error amplifier allowing use in both isolated and

non isolated configuration.

■ PoE powered device appliances

■ High power (>12.95 W) powered devices

Table 1.

Device summary

Order codes

Package

Packing

PM8800A

HTSSOP16

Tube

PM8800ATR

Tape and reel

February 2008

Rev 2

1/35

www.st.com

12 3 4 5 6 7...35

中文翻译

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PM8800ATR 替代型号

型号	品牌	替代类型	描述	数据表
PM8800A	STMICROELECTRONICS	完全替代	Integrated IEEE 802.3af compliant PoE-PD interface and PWM controller with support of exte

与PM8800ATR相关器件

型号	品牌	获取价格	描述	数据表
PM8800A-WGC	PMC	获取价格	Consumer IC,
PM8800-WGC	PMC	获取价格	Consumer IC,
PM8801	STMICROELECTRONICS	获取价格	Programmable classification current
PM8801TR	STMICROELECTRONICS	获取价格	Programmable classification current
PM8803	STMICROELECTRONICS	获取价格	High-efficiency, IEEE 802.3at compliant integrated PoE-PD interface and PWM controller
PM8803TR	STMICROELECTRONICS	获取价格	High-efficiency, IEEE 802.3at compliant integrated PoE-PD interface and PWM controller
PM8804	STMICROELECTRONICS	获取价格	PoE和电信系统的PWM峰值电流模式控制器
PM8805	STMICROELECTRONICS	获取价格	具有嵌入式双有源桥的IEEE 802.3bt PoE-PD接口
PM881	ETC	获取价格	Analog IC
PM882	ETC	获取价格	Analog IC

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