Datasheet > C2472

C2472

更新时间： 2024-09-17 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	466K
描述
RDFC Controllers for Offline Applications

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C2472 数据手册

C2472, C2473 and C2474 Datasheet

RDFC Controllers for Offline Applications

ADVANTAGES



Low system component count

High average efficiency

Low standby power consumption

EMI compliance without extra components

High isolation & surge voltage withstand

High power density in very small size

C2474PW1

PDIP-8

C2472PX2

SOT23-6

FEATURES

C2473PX1

SOP-8



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/adaptor (single voltage input) e.g. cordless phones, portable electric tools.

Embedded PSU (single voltage input) e.g. set-top boxes, DVD players, audio products, domestic appliances.

OVERVIEW

The C2472, C2473 and C2474 controllers use CamSemi’s Resonant Discontinuous Forward Converter

(RDFC) topology to create a high efficiency, low cost alternative to line-frequency transformer PSUs. 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 C2472, C2473 and C2474 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 C2472, C2473 and C2474 Controller ICs

Product data

Page 1 of 18

DS-1423-0709C

26-Sep-2007

12 3 4 5 6 7...18

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与C2472相关器件

型号	品牌	获取价格	描述	数据表
C2472PX2	ETC	获取价格	品牌：Camsemi　　　型号：C2161DX2　C2162DX2 　　封装：SOT
C2472PX2-TR13	ETC	获取价格	RDFC Controllers for Offline Applications
C2472PX2-TR7	ETC	获取价格	RDFC Controllers for Offline Applications
C2473	ETC	获取价格	RDFC Controllers for Offline Applications
C2473A	GENERAL	获取价格	COMMUNICATION CABLE
C2473PX1-TR13	ETC	获取价格	RDFC Controllers for Offline Applications
C2473PX1-TR7	ETC	获取价格	RDFC Controllers for Offline Applications
C2474	ETC	获取价格	RDFC Controllers for Offline Applications
C2474PW1-T1	ETC	获取价格	RDFC Controllers for Offline Applications
C247A1	ETC	获取价格	Analog IC