Datasheet > C2471LW1-T1

C2471LW1-T1

更新时间： 2024-11-07 06:45:55

品牌	Logo	应用领域
其他 - ETC		控制器
页数	文件大小	规格书
18页	655K
描述
RDFC Controllers for Offline Applications up to 6 W

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中文翻译

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C2471LW1-T1 数据手册

C2471 Datasheet

RDFC Controllers for Offline Applications up to 6 W

ADVANTAGES



Low system component count

High average efficiency

Low no load power consumption

EMI compliance without extra components

High isolation & surge voltage withstand

High power density in very small size

C2471LW1

PDIP-8

C2471LX2

SOT23-6

FEATURES



Highly integrated CMOS controller IC

Low cost package options

Drive suitable for low cost bipolar power transistors

Resonant switching for high efficiency and low EMI

Frequency optimised for power circuit parasitics

Protection against overload, over-temperature and under-voltage

APPLICATIONS

External AC/DC charger/adapter (single voltage input) e.g. cordless phones, low power adapters.

Embedded PSU (single voltage input), audio products, domestic appliances.

OVERVIEW

The C2471 controllers use CamSemi’s low power Resonant Discontinuous Forward Converter (RDFC)

topology to create a high efficiency, low cost alternative to line-frequency transformer PSUs, for applications

up to 6 W. By operating in resonant mode, EMI is greatly reduced, enabling the replacement of linear PSUs

in demanding applications such as audio products and cordless phone chargers. The C2471 controllers also

offer overload protection which is usually associated with more expensive switch mode solutions.

AUX

VDD

Vdd

regulator

Base

drive

Switch

saturation

sensing

COL

Resonance

sensing

RDFC

Control

BAS

Current

sensing

GND

Figure 1: Block Diagram of the C2471 Controller ICs

Product data

Page 1 of 18

DS-1639-0805

02-May-2008

12 3 4 5 6 7...18

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