Datasheet > CM6904

CM6904

更新时间： 2024-02-10 17:06:41

品牌	Logo	应用领域
虹冠电子 - CHAMP		功率因数校正控制器
页数	文件大小	规格书
14页	258K
描述
Low Pin Count PFC/PWM Controller Combo

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

CM6904 数据手册

CM6903/4

Low Pin Count PFC/PWM C^ONTROLLERC^OMBO

GENERAL DESCRIPTION

FEATURES

The CM6903/4 is a space-saving PFC-PWM controller for ꢀ

power factor corrected, switched mode power supplies that

Patent Number #5,565,761, #5,747,977, #5,742,151,

#5,804,950, #5,798,635

offers very low start-up and operating currents. For the

ꢀ

Pin to pin compatible with FAN6903/4

power supply less than 500Watt, its input current shaping ꢀ

Enable lowest BOM for power supply with PFC

Internally synchronized PFC and PWM in one IC

Patented slew rate enhanced voltage error amplifier with

advanced input current shaping technique

Universal Line Input Voltage

CCM boost or DCM boost with leading edge modulation

PFC using Input Current Shaping Technique

Feedforward IAC pin to do the automatic slope

compensation

PFC performance could be very close to CM6800 or

ML4800 architecture.

ꢀ

Power Factor Correction (PFC) offers the use of smaller, ꢀ

lower cost bulk capacitors, reduces power line loading and ꢀ

stress on the switching FETs, and results in a power supply

fully compliant to IEC1000-3-2 specifications. The

CM6903/4 includes circuits for the implementation of a

ꢀ

leading edge, input current shaping technique “boost” type ꢀ

PFC and a trailing edge, PWM.

PFCOVP, PFC VCCOVP, Precision -1V PFC ILIMIT,

Tri-Fault Detect comparator to meet UL1950

No bleed resistor required

ꢀ

The CM6903’s PFC and PWM operate at the same

frequency, 67kHz. The PFC frequency of the CM6904 is

automatically set at half that of the 134kHz PWM. This

higher frequency allows the user to design with smaller

PWM components while maintaining the optimum operating

frequency for the PFC. An PFC OVP comparator shuts

ꢀ

Low supply currents; start-up: 100uA typical, operating

current: 2mA typical.

Synchronized leading PFC and trailing edge modulation

PWM to reduce ripple current in the storage capacitor

between the PFC and PWM sections and to reduce

switching noise in the system

ꢀ

down the PFC section in the event of a sudden decrease in ꢀ

load. The PFC section also includes peak current limiting

VINOK Comparator to guarantee to enable PWM when

PFC reach steady state

for enhanced system reliability.

ꢀ

High efficiency trailing-edge current mode PWM

UVLO, REFOK, and brownout protection

Digital PWM softstart: CM6903 (10ms), CM6904 (5ms)

Precision PWM 1.5V current limit for current mode

operation

24 Hours Technical Support---WebSIM

Champion provides customers an online circuit simulation tool

called WebSIM. You could simply logon our website at

www.champion-micro.com for details.

APPLICATIONS

PIN CONFIGURATION

SIP-09 (Z09)

SOP-16 (S16)

Top View

ꢀ

Desktop PC Power Supply

AC Adaptor

Front View

Internet Server Power Supply

IPC Power Supply

PFCOUT

GND

PWMOUT

UPS

Battery Charger

DC Motor Power Supply

Monitor Power Supply

Telecom System Power Supply

Distributed Power

V^CC

I^SENSE

VEAO

V^FB

I^AC

DC I^LIMIT

^2002/12/16Preliminary ^{Rev. 0.4}

Champion Microelectronic Corporation

Page 1

12 3 4 5 6 7...14

中文翻译

下载PDF

与CM6904相关器件

型号	品牌	获取价格	描述	数据表
CM6904IZ	CHAMP	获取价格	Low Pin Count PFC/PWM Controller Combo
CM698	CML	获取价格	T-1 3/4 Midget Groove Base
CM6A	CML	获取价格	T-2 Telephone Slide Base - Type 5 (short)
CM6B	CML	获取价格	T-2 Telephone Slide Base - Type 5 (short)
CM6C	CML	获取价格	T-2 Telephone Slide Base - Type 5 (short)
CM6L100P0	MOLEX	获取价格	D Microminiature Connector, 100 Contact(s), Male, Solder Terminal
CM6L100P07	MOLEX	获取价格	D Microminiature Connector, 100 Contact(s), Male, Solder Terminal
CM6L100P07H	MOLEX	获取价格	D Microminiature Connector, 100 Contact(s), Male, Solder Terminal
CM6L100P0H	MOLEX	获取价格	D Microminiature Connector, 100 Contact(s), Male, Solder Terminal
CM6L100S0	MOLEX	获取价格	D Microminiature Connector, 100 Contact(s), Female, Solder Terminal

与CM6904相关文章

咪头种类及其特性：全指向与单指向咪头的专业解析
2024-06-25

3
基频晶振与泛音晶振在电路中的使用差异解析
2024-06-25

2
BSS138P数据手册解读：产品概览、特性、应用及替换型号推荐
2024-06-25

1
SZNUP2105LT1G电气参数、产品特性详解
2024-06-25

1

产品中心

服务支持

精选活动

关于我们

帮助中心

CM6904

CM6904 数据手册

与CM6904相关器件

与CM6904相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

CM6904

CM6904 数据手册

与CM6904相关器件

与CM6904相关文章

您还可以找

您在本页遇到什么问题？