Datasheet > CM6504IP

CM6504IP

更新时间： 2024-11-27 22:36:31

品牌	Logo	应用领域
其他 - ETC		功率因数校正控制器时钟
页数	文件大小	规格书
13页	184K
描述
8-PIN SINGLE PFC CONTROLLER WITH 50% PWM CLOCK SIGNAL

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CM6504IP 数据手册

CM6503/4

8-PIN S^INGLEPFC C^ONTROLLERW^{ITH 50%}PWM C^LOCKS^IGNAL

GENERAL DESCRIPTION

FEATURES

The 8 pin single PFC controller with 50% PWM clock ,

ꢀ

Enable lowest BOM for power supply with PFC

CM6503/4 is a space-saving controller for power factor ꢀ

corrected, switched mode power supplies that offers very

low start-up and operating currents. For the power supply ꢀ

less than 500Watt, its performance could be very close to ꢀ

CM6800 or ML4800 architecture. Its IAC has dual function. ꢀ

8 pin CM6503/4 does not require and bleed resistors. It use

IAC pin during the start up condition to start up CM6503/4. ꢀ

After CM6503/4 is on, IAC will switch itself back to the IAC

Patented slew rate enhanced voltage error amplifier with

advanced input current shaping technique

Universal Line Input Voltage

No bleed resistor required

CCM boost or DCM boost with leading edge modulation

PFC using Input Current Shaping Technique

Feedforward IAC pin to do the automatic slope

compensation

function.

ꢀ

PFCOVP, TriFault Detect, PFC VCCOVP, Precision -1V

PFC ILIMIT

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

CM6503/4 includes circuits for the implementation of a

leading edge, average current “boost” type PFC and a

trailing edge, PWM Clock signal which will not turn on until ꢀ

PFC boost output reaches steady state.

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

current: 2mA typical.

Synchronized leading PFC and trailing edge modulation

PWM Clock for the down stream DC to DC stage to reduce

ripple current in the storage capacitor between the PFC and

PWM sections and to reduce switching noise in the system

VINOK Comparator to guarantee to enable PWM Clock

when PFC reach steady state

ꢀ

UVLO, VREFOK, and brownout protection

The CM6503’s PFC and PWM Clock operate at the same

frequency, 67kHz. The PFC frequency of the CM6504 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

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

load. The PFC section also includes peak current limiting

for enhanced system reliability.

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

DIP-08 (P08)

ꢀ

Desktop PC Power Supply

AC Adaptor

Top View

Internet Server Power Supply

IPC Power Supply

PFCOUT PWMCLK

UPS

Battery Charger

DC Motor Power Supply

Monitor Power Supply

Telecom System Power Supply

Distributed Power

VCC

IAC

V^FB

GND

ISENSE

VEAO

2002/07/16 Preliminary ^{Rev. 0.2}

Champion Microelectronic Corporation

Page 1

12 3 4 5 6 7...13

中文翻译

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