Datasheet > LP34-3

LP34-3

更新时间： 2024-01-07 21:12:54

品牌	Logo	应用领域
POWER-ONE		过滤器
页数	文件大小	规格书
5页	111K
描述
Filter & Ring Core Chokes

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LP34-3 数据手册

Accessories

Filter & Ring Core Chokes FP, L and LP Series

Description

These Filters and chokes are designed to reduce input in-

terference and/or output ripple voltages occurring in appli-

cations with switched mode power supplies. Since all our

filters contain a Moly Permalloy Powder (MPP) ring core

they feature very low DC losses as well as high DC mag-

netisation and operate perfectly at the input and/or output

of switching regulators ensuring effective filtering even at

elevated DC current levels. These special characteristics

allow the chokes to be operated at DC currents which con-

siderably exceed the rated current, by accepting a corre-

sponding gradual loss of inductance (unlike ferrite core

chokes where inductance rapidly decreases above a cer-

tain DC magnetising level).

In applications where switching regulators have long supply

lines, filters and chokes are used in order to prevent oscilla-

tions caused by their negative input impedance. For further

information refer also to switching regulator data for "Option

L", and to section: Technical Information: Installation & Ap-

plication.

Table 1a: Type survey of FP filter blocks

Table 1b: Type survey ring core chokes

Filter type

Part No.

Matching switching

regulator type

Type

Part No.

Inductivity

I_Ln

Single Symm.

coil

FP38

FP80

FP144

PSR 54

PSA 55

PSA 5A2

PSA 5A5

PSA 123

PSA 153

LP34-3

L20-7

34 µH

20 µH

3 A

7 A

8 A

•

LP20-7

LP183 2 ∞ 183 µH

•

PSR 53

PSR 122.5

PSR 152.5

PSR 242

PSR 362

PSA 242.5

PSA 121.5

PSA 151.5

PSA 241.5

PSA 361

PSA 481

Filter Blocks FP Types

The filter blocks contain, in addition to a MPP ring core, a

capacitor and an attenuation resistor, capable of handling

the high ripple currents seen at the input of switching regu-

lators. This forms a complete external filter system opti-

mised to prevent oscillations and to reduce superimposed

interference voltages and currents, specially designed for

use in PCB applications together with switching regulators

in an A01 case size. For selection of filters refer to the type

survey.

Table of Contents

Page

Description ....................................................................... 1

Filter Blocks FP Types ..................................................... 1

Low-Loss Ring Core Chokes L/LP-Series ....................... 3

Mechanical Dimensions ................................................... 5

REV. SEP 29, 2003

Page 1 of 5

12 3 4 5

中文翻译

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LP343F22IST	CTS	获取价格	Series - Fundamental Quartz Crystal, 34.368MHz Nom,
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LP343F31IKT	CTS	获取价格	Parallel - Fundamental Quartz Crystal, 34.368MHz Nom,
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