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CM6502S データシート PDF ( 特性, スペック, ピン接続図 )

部品番号 CM6502S
部品説明 EPA/90+ ZVS-Like PFC CONTROLLER
メーカ Champion Microelectronic
ロゴ Champion Microelectronic ロゴ 

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CM6502S Datasheet, CM6502S PDF,ピン配置, 機能
CM6502S (Dynamic Soft PFC)
http://www.championmicro.com.tw
EPA/90+ ZVS-Like PFC CONTROLLER
Design for High Efficient Power Supply at both Full Load and Light Load
GENERAL DESCRIPTION
CM6802S is a ZVS-Like Single PFC and it is designed to
meet 90+ spec. ( total efficiciency). It has the following key
features.
1.) Around 2% efficiency gain when the output load is
below 40% of the full load.
2.) Hold Up time can be increased ~ 30% from the
existing 6800 power supply.
3.) 420V bulk capacitor value can be reduced, and also
PFC boost ripple current can be reduced; therefore,
the boost inductor core size may be reduced.
4.) No Load Consumption can be reduced to 290mW at
270VAC.
5.) The stress over the entire external power device is
reduced and EMI noise reduced.
6.) A PGB function is designed for interfacing to next
stage controller. It has a customer programmable
low threshold PGTHL.
CM6502S is designed to meet the EPA/80+ regulation. With
the proper design, its efficiency of power supply can easily
approach 90+.
FEATURES
‹ Patents Pending
‹ 23V Bi-CMOS process.
‹ Designed for EPA/90+efficiency.
‹ Selectable Boost output from 380V to 342V during light
load.
‹ All high voltage resistors can be greater than 5 Mega
ohm (5 Mega to 8 Mega ohm) to improve the no load
consumption.
‹ Rail to rail CMOS Drivers with on, 60 ohm and off, 30
ohm with 17V zeners.
‹ Fast Start-UP Circuit without extra bleed resistor to aid
VCC reaches 13V sooner.
‹ Low start-up current (55uA typ.)
‹ Low operating current (2.5mA typ.)
‹ 16.5V VCC shunt regulator
‹ Dynamic Soft PFC to ease the stress of the Power
Device and Ease the EMI-filter design.
‹ PFC Digital Brown Out
‹ Low total harmonic distortion, THD and Power Factor
approaches 1.0.
‹ Average current, continuous or discontinuous boost
leading edge PFC.
‹ Current fed Gain Modulator for improved noise immunity.
‹ Gain Modulator is a constant maximum power limiter.
‹ Brown-out control, over-voltage protection, UVLO, and
soft start, and Reference OK.
‹ Power Fold Back Protection
2008/06/10 Rev. 1.0
Champion Microelectronic Corporation
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