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KA5H0365R-TU

更新时间： 2024-11-18 13:02:43

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		数据通信
页数	文件大小	规格书
4页	334K
描述
12 A SWITCHING REGULATOR, 110 kHz SWITCHING FREQ-MAX, SFM4, TO-220F, 4 PIN

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技术参数
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KA5H0365R-TU 技术参数

是否无铅：	不含铅	生命周期：	Not Recommended
零件包装代码：	TO-220F	包装说明：	TO-220F, 4 PIN
针数：	3	Reach Compliance Code：	unknown
风险等级：	5.23	Is Samacsys：	N
Base Number Matches：	1

KA5H0365R-TU 数据手册

www.fairchildsemi.com

Application Bulletin AB-28

Power Conversion for the Data

Communications Market

Abstract

Migration to Converged Voice/

Data IP

Fig. 2 shows the envisioned converged Voice/Data/Video

system over IP. At the center of this new universe is the

Internet Protocol Wide Area Network, with all the services,

including voice, data, video and wireless communications

gravitating around it.

This application bulletin discusses the transition from tradi-

tional telephony to converged voice and data over Internet

Protocol (IP) and its implications for the power conversion

of such systems. A few power conversion examples are pro-

vided complete of applications schematics.

Introduction

The arm wrestling between voice and data has concluded in

favor of the latter with all the major players now posturing

for leadership of the migration from traditional voice to

Internet Protocol (IP) telephony. On the short term the huge

investments in both traditional telephony infrastructure and

data over IP warrants that over the next few years we will

have to provide power conversion for both types of systems

as well as for the converged systems to come.

WLAN

Router

Video

IP WAN

PSTN

IPWAN = Internet Protocol Wide Area Network

WLAN = Wireless Local Area Network

PSTN = Public Switched Telephone Network

Current Environment with Separate

Networks

Fig. 1 shows the current situation with voice going through

traditional PBX (Private Branch Ofﬁce), Central Ofﬁce, and

Switch to the Public Switch Telephone Network (PSTN). On

independent paths the data travels from Routers to wide Area

Networks (WAN) and the video goes trough a third indepen-

dent path.

Fig. 2. Voice/Data/video Over IP

Telecom –48V DC Power Distribution

Traditionally telecom systems have been distributing a DC

power (-48V typically) obtained from a battery back up

being continually charged by a Rectiﬁer/Charger from the

AC line. Subsequently the –48V is converted into various

low positive DC voltages (Fig. 3 shows 12V only for

simplicity) as well as back to AC voltages as necessary.

Home

Phone/Fax

Public Switch

Telephone

Network (PSTN)

Central

Office

Voice

Switch

Office PBX

(Private Branch

Exchange)

-48V

AC LINE

12V DC

-48V

DC/DC

DC/AC

Rectifier

/Charger

Wide Area

Network

(WAN)

Data

Router

Video

Battery

Backup

120/208V AC

Video

Fig. 3. Telecom –48V DC power distribution

Fig.1. Separate Networks for Voice, Data and Video

Datacom AC Power Distribution

Data centric systems tend to rely on an Uninterruptible

Power Supply (AC UPS) front-end for distributing AC

power, which subsequently is converted into the basic

constituents, -48V, AC power and low voltage DC (again,

for simplicity we are only showing a 12V DC in Fig. 4).

REV. 1.0.0

12 3 4

中文翻译

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与KA5H0365R-TU相关器件

型号	品牌	获取价格	描述	数据表
KA5H0365RYDTU	FAIRCHILD	获取价格	Fairchild Power Switch(FPS)
KA5H0365RYDTU	ROCHESTER	获取价格	12 A SWITCHING REGULATOR, 110 kHz SWITCHING FREQ-MAX, ZFM4, TO-220F, 4 PIN
KA5H0365R-YDTU	ROCHESTER	获取价格	12 A SWITCHING REGULATOR, 110 kHz SWITCHING FREQ-MAX, ZFM4, TO-220F, 4 PIN
KA5H0380R	FAIRCHILD	获取价格	SPS consist of high voltage power SenseFET and current mode PWM IC
KA5H0380RTU	ROCHESTER	获取价格	12 A SWITCHING REGULATOR, 110 kHz SWITCHING FREQ-MAX, SFM4, TO-220F, 4 PIN
KA5H0380RTU	FAIRCHILD	获取价格	Fairchild Power Switch(FPS)
KA5H0380R-TU	FAIRCHILD	获取价格	SPS consist of high voltage power SenseFET and current mode PWM IC
KA5H0380R-TU	ROCHESTER	获取价格	12 A SWITCHING REGULATOR, 110 kHz SWITCHING FREQ-MAX, SFM4, TO-220F, 4 PIN
KA5H0380RYDTU	FAIRCHILD	获取价格	Fairchild Power Switch(FPS)
KA5H0380R-YDTU	FAIRCHILD	获取价格	SPS consist of high voltage power SenseFET and current mode PWM IC

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