Datasheet > CM6802IP

CM6802IP

更新时间： 2024-11-28 03:25:55

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
18页	338K
描述
NO BLEED RESISTOR GREEN MODE 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

CM6802IP 数据手册

CM6802

N^OB^LEEDR^ESISTORG^REENM^ODEPFC/PWM C^ONTROLLERC^OMBO

GENERAL DESCRIPTION

FEATURES

The CM6802 is a green PFC/PWM. It is the new generation ꢀ

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

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

fosc=2 x fpwm =4 x fpfc

of ML4802, ML4841, ML4801 and ML4824-2. Its system

clock frequency is generated by the external RT and CT, ꢀ

and then its PWM frequency is 50% of the clock and its ꢀ

PFC frequency is 25% of the clock. CM6802 is designed to ꢀ

be pin-pin compatible with CM6800 family, ML4800 family ꢀ

and ML4824 family. Its PWM (DC to DC section) can be

easily configured to Voltage Mode or Current Mode. The

green mode function can easily be designed so during the ꢀ

no load condition, its input power can be less than 0.75Watt

without shutting off PFC. Its PFC green mode threshold and ꢀ

the PWM green mode threshold can separately set by

No bleed resistor required

Before the chip wakes up, IAC can start up VCC

Pin to pin Compatible with CM6800, ML4824 and ML4800

(It needs to modify the values of the external component to

work properly).

User Program PFC automatic green mode threshold

(patented)

User Program PWM automatic green mode threshold

(patented)

selecting the proper the RC filter at ISENSE pin (pin3) and ꢀ

CT on RAMP 1 pin (pin 7). Power Factor Correction (PFC)

Input power less than 0.75Watt without shutting off PFC at

no load condition.

allows the use of smaller, lower cost bulk capacitors,

reduces power line loading and stress on the switching ꢀ

FETs, and results in a power supply that fully compiles with ꢀ

IEC-1000-3-2 specifications. Intended as a BiCMOS

version of the industry-standard CM6800, CM6802 includes ꢀ

circuits for the implementation of leading edge, average

ꢀ

Additional folded-back current limit for PWM section.

23V Bi-CMOS process

PWM pulse keeping for the green mode

VIN OK guaranteed turn on PWM at 2.5V instead of 1.5V

Internally synchronized leading edge PFC and trailing edge

PWM in one IC

ꢀ

current, “boost” type power factor correction and a trailing ꢀ

edge, pulse width modulator (PWM). Both PFC and PWM

Gate-driver with 0.5A capabilities minimizes the need for ꢀ

external driver circuits. Low power requirements improve ꢀ

Slew rate enhanced transconductance error amplifier for

ultra-fast PFC response

Low start-up current (30µA typ.)

Low operating current (3.0mA type.)

Low total harmonic distortion, high PF

Reduces ripple current in the storage capacitor between the

PFC and PWM sections

efficiency and reduce component costs.

ꢀ

An over-voltage comparator shuts down the PFC section in

the event of a sudden decrease in load. The PFC section ꢀ

also includes peak current limiting and input voltage

Average current, continuous or discontinuous boost leading

edge PFC

brownout protection. The PWM section can be operated in ꢀ

current or voltage mode, at up to 250kHz, and includes an ꢀ

VCC OVP Comparator will turn off both PFC and PWM

Low Power Detect Comparator

accurate 50% duty cycle limit to prevent transformer

saturation.

ꢀ

Tri-Fault detect to meet UL1950

PWM configurable for current mode or voltage mode

operation

ꢀ

When RAMP1 is 280KHz, fpfc is 70KHz and fpwm is

140KHz.

ꢀ

Current fed gain modulator for improved noise immunity

Brown-out control, over-voltage protection, UVLO, and soft

start, and Reference OK

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.

^2003/06/25Preliminary

Champion Microelectronic Corporation

Page 1

12 3 4 5 6 7...18

中文翻译

下载PDF

与CM6802IP相关器件

型号	品牌	获取价格	描述	数据表
CM6802IS	CHAMP	获取价格	NO BLEED RESISTOR GREEN MODE PFC/PWM CONTROLLER COMBO
CM6802SAH	CHAMP	获取价格	EPA/85+ ZVS-Like PFC+PWM COMBO CONTROLLER
CM6802SAHGIP	CHAMP	获取价格	EPA/85+ ZVS-Like PFC+PWM COMBO CONTROLLER
CM6802SAHGIS	CHAMP	获取价格	EPA/85+ ZVS-Like PFC+PWM COMBO CONTROLLER
CM6802SAHGISTR	CHAMP	获取价格	EPA/85+ ZVS-Like PFC+PWM COMBO CONTROLLER
CM6802SAHXIP	CHAMP	获取价格	EPA/85+ ZVS-Like PFC+PWM COMBO CONTROLLER
CM6802SAHXIS	CHAMP	获取价格	EPA/85+ ZVS-Like PFC+PWM COMBO CONTROLLER
CM6802SAHXISTR	CHAMP	获取价格	EPA/85+ ZVS-Like PFC+PWM COMBO CONTROLLER
CM6802SBH	CHAMP	获取价格	EPA/85+ ZVS-Like PFC+PWM COMBO CONTROLLER
CM6802SBHGIP	CHAMP	获取价格	EPA/85+ ZVS-Like PFC+PWM COMBO CONTROLLER

与CM6802IP相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

49
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

38
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

66
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

62

产品中心

服务支持

精选活动

关于我们

帮助中心

CM6802IP

CM6802IP 数据手册

与CM6802IP相关器件

与CM6802IP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

CM6802IP

CM6802IP 数据手册

与CM6802IP相关器件

与CM6802IP相关文章

您还可以找

您在本页遇到什么问题？