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功率因數(shù)校正控制器

PFC控制器采用臨界導(dǎo)通模式，可以實現(xiàn)高功率因數(shù)校正（PFC）和最優(yōu)的AC輸入電流總諧波失真（THD），非常適合中小功率應(yīng)用。其極低的啟動電流、靜態(tài)電流和禁用功能可以降低功耗，同樣也適用于低待機(jī)功率應(yīng)用。

產(chǎn)品型號	出貨狀態(tài)	主要特點	推薦最大功率（90Vac to 264Vac)	最高工作頻率 Fmax (KHz)	環(huán)路補(bǔ)償	Vcc工作電壓	保護(hù)電路	封裝	典型應(yīng)用
LD7593A/B	Active	6-Pin Transition-Mode PFC Controller ?Voltage Mode Control ZCD Auxiliary Winding is Unnecessary Low Startup Current (<1μA)?	350W	300	External	10V to 24V	OCP (Cycle by Cycle Current Limit) Vo OVP on INV pin Vo OVP on CS/ZCD pin Internal OTP (Over Temperature Protection)?	SOT-23-6	All Off Line Appliances Requiring Power Factor Correction
LD7580R	Active	High Performance Interleaved CrM/ DCM Power Factor Correction Controller ?	300W to 1000W	120	External	10V to 24V	Cycle-by-Cycle Current Limit Robust Protection Features Brown?In/Out Detection on VIN pin VCCOVP on VCC pin Dual O/UVP Function on INV/OUVP pin Winding open/ short circuit protection on ZCD pin GND open protection Bypass diode short circuit protection External Latch Function on LATCH pin	SOP-16	High Power,High Density\Small Size power Adapter
LD7597A	Active	Current mode PFC controller operating on critical conduction (CRM) or? discontinuous (DCM) ?mode	300W	125	External	18V to 24V	Burn in&Out/OTP/OCP/OVP&UVP	SOP-8	All Off Line Appliances Requiring Power Factor Correction
LD7790GS	Active	Integrated Transition Mode PFC Controller ?and QR Flyback Controller ?	150W	PFC:250 PWM: 85	External	10V to 29.5V	Burn in&Out/OTP/OCP/OVP&UVP/OLP	SOP-16	AC-DC High Power Adapter Open Frame SMP
LD7793	New Product	Integrated Boost PFC and QR/PFM Flyback controller Voltage mode transition operation on PFC Current mode QR/PFM operation on Flyback Frequency swapping operation on Flyback	150W	PFC:350 PWM: 110	External	10V to 29.5V	Burn in&Out/OTP/OCP/OVP&UVP/OLP	SOP-16	AC-DC High Power Adapter Open Frame SMP

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